Electronic Components

Rhopoint Components was established over 40 years ago as a distributor of precision resistors and passive electronic components have formed a core of the company ever since, although our portfolio has grown considerably. Apart from vast range of resistors in virtually any resistance rating, we also offer a selection of thermistors and inrush current limiters, capacitors, digital isolators, high quality reed relays including the high voltage options, reed switches and products based on the reed switch technology such as flow and float switches for liquid level management, and much more.

We have long standing relationships with most of our carefully selected manufacturing partners, to ensure that our customers only receive quality components suitable for long term designing-in. Our sales engineers all have background in electronics and working knowledge of the electronic components, reinforced by regular training from the manufacturers themselves, so our in-house knowledge is always up to date. That is why we can speak to the design engineers and help them find, price and design-in a solution for their application.

We understand that reading through endless datasheets and looking for an off-the-shelf component that will tick all the boxes is a tedious task. Our team can help whatever your application - they can not only propose a suitable existing model where available, but also offer customised solutions. Majority of our manufacturing partners are able to customise their standard products at no, or very little, extra cost - whether a custom resistance rating, TCR, VCR or tolerance values, lead length or terminations.

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Alpha CLA Series

The CLA ultra-precision thermosensitive resistor series from Alpha Electronics offers a highly accurate device that has a resistivity which varies linearly with temperature change in a through-hole package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce these resistors that are ideally designed for temperature detection, providing a small size and rapid response.

  • Ultra-precision thermosensitive through-hole resistor
  • Stocked in both 10Ω and 100Ω resistance values with a tolerance of ±0.5%
  • Available in any resistance between 5Ω and 100Ω
  • Tolerance options from ±5.0% down to ±0.5% available
  • Linear +4250 ±1% ppm/°C TCR characteristic (from 0 to +100°C)
  • Response time of 0.9 seconds
  • Maximum working voltage of 250V
  • Power rating of 0.125W (at +70°C)
  • Maximum rated operating temperature +70°C
  • Working temperature from -65°C up to +125°C

These Alpha CLA ultra-precision thermosensitive resistors are made of material only a few µm thick and respond rapidly to temperature changes. Strict control of foil composition maintains uniform quality without fluctuation of temperature characteristics of resistance. They are produced by the same fine photo-etching technology used in other metal foil precision resistors from Alpha.

The CLA series has a pin pitch of 2.54 ±0.25mm.

Typical applications for the CLA ultra-precision thermosensitive resistor series include:

  • Cold junction reference for thermocouples
  • Temperature compensation in load cells
  • Temperature compensation device in semiconductor circuits
  • Temperature sensing devices

The below table gives the full specifications for each resistor model available including the Alpha CLA series:

Alpha CLA Specifications

* Symbols parenthesized are for part number composition

£0.00

Alpha CLB Series

The CLB ultra-precision thermosensitive resistor series from Alpha Electronics offers a highly accurate device that has a resistivity which varies linearly with temperature change in a through-hole package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce these resistors that are ideally designed for temperature detection, providing a small size and rapid response.

  • Ultra-precision thermosensitive through-hole resistor
  • Stocked in a 175Ω resistance value with a tolerance of ±0.5%
  • Available in any resistance between 5Ω and 200Ω
  • Tolerance options from ±5.0% down to ±0.5% available
  • Linear +4250 ±1% ppm/°C TCR characteristic (from 0 to +100°C)
  • Response time of 1.3 seconds
  • Maximum working voltage of 300V
  • Power rating of 0.25W (at +70°C)
  • Maximum rated operating temperature +70°C
  • Working temperature from -65°C up to +125°C

These Alpha CLB ultra-precision thermosensitive resistors are made of material only a few µm thick and respond rapidly to temperature changes. Strict control of foil composition maintains uniform quality without fluctuation of temperature characteristics of resistance. They are produced by the same fine photo-etching technology used in other metal foil precision resistors from Alpha.

The CLB series has a pin pitch of 2.54 ±0.25mm.

Typical applications for the CLB ultra-precision thermosensitive resistor series include:

  • Cold junction reference for thermocouples
  • Temperature compensation in load cells
  • Temperature compensation device in semiconductor circuits
  • Temperature sensing devices

The below table gives the full specifications for each resistor model available including the Alpha CLB series:

Alpha CLB Specifications

* Symbols parenthesized are for part number composition

£0.00

Alpha FLA Series

The FLA conformally coated resistor series from Alpha Electronics offers a very precise resistor with a resistance range from 10Ω up to 100kΩ all in a small through-hole package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability.

  • Conformally coated through-hole resistor
  • Available in any resistance between 10Ω and 100kΩ
  • Tight tolerance options as low as ±0.05% available for resistances between 100Ω and 100kΩ
  • Tight TCR options available of ±2.5 ppm/°C or ±5 ppm/°C (from -25°C up to +125°C)
  • Maximum working voltage of 250V
  • Power rating of 0.125W (at +70°C)
  • Maximum rated operating temperature +70°C
  • Working temperature from -25°C up to +155°C

The Alpha Electronics FLA precision resistor series have been designed with terminals that are easy for insertion into the PCB.

The FLB series has a pin pitch of 2.54 ±0.25mm.

Alpha's Bulk Metal® foil resistor technology means that these conformally coated, through-hole, precision resistors are ideal for precision measurements, also their low inductance makes them ideal for use at higher frequencies.

The below table gives the full specifications for each resistor model available including the Alpha FLA series:

Alpha FLA Specifications

* Symbols parenthesized are for part number composition
✝ Resistance figures are the values obtained by measuring at the point 2.5 ±1.0mm below the shoulder of the leads

£0.00

Alpha FLB Series

The FLB conformally coated resistor series from Alpha Electronics offers a very precise resistor with a resistance range from 10Ω up to 150kΩ all in a small through-hole package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability.

  • Conformally coated through-hole resistor
  • Available in any resistance between 10Ω and 150kΩ
  • Tight tolerance options as low as ±0.05% available for resistances between 100Ω and 150kΩ
  • Tight TCR options available of ±2.5 ppm/°C or ±5 ppm/°C (from -25°C up to +125°C)
  • Maximum working voltage of 300V
  • Power rating of 0.25W (at +70°C)
  • Maximum rated operating temperature +70°C
  • Working temperature from -25°C up to +155°C

The Alpha Electronics FLB precision resistor series have been designed with terminals that are easy for insertion into the PCB.

The FLB series has a pin pitch of 2.54 ±0.25mm.

Alpha's Bulk Metal® foil resistor technology means that these conformally coated, through-hole, precision resistors are ideal for precision measurements, also their low inductance makes them ideal for use at higher frequencies.

The below table gives the full specifications for each resistor model available including the Alpha FLB series:

Alpha FLB Specifications

* Symbols parenthesized are for part number composition
✝ Resistance figures are the values obtained by measuring at the point 2.5 ±1.0mm below the shoulder of the leads

£0.00

Alpha FLC Series

The FLC conformally coated resistor series from Alpha Electronics offers a very precise resistor with a resistance range from 10Ω up to 200kΩ all in a small through-hole package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability.

  • Conformally coated through-hole resistor
  • Available in any resistance between 10Ω and 200kΩ
  • Tight tolerance options as low as ±0.05% available for resistances between 100Ω and 200kΩ
  • Tight TCR options available of ±2.5 ppm/°C or ±5 ppm/°C (from -25°C up to +125°C)
  • Maximum working voltage of 300V
  • Power rating of 0.25W (at +70°C)
  • Maximum rated operating temperature +70°C
  • Working temperature from -25°C up to +155°C

The Alpha Electronics FLC precision resistor series have been designed with terminals that are easy for insertion into the PCB.

The FLC series has a pin pitch of 5.08 ±0.25mm.

Alpha's Bulk Metal® foil resistor technology means that these conformally coated, through-hole, precision resistors are ideal for precision measurements, also their low inductance makes them ideal for use at higher frequencies.

The below table gives the full specifications for each resistor model available including the Alpha FLC series:

Alpha FLC Specifications

* Symbols parenthesized are for part number composition
✝ Resistance figures are the values obtained by measuring at the point 2.5 ±1.0mm below the shoulder of the leads

£0.00

Alpha KLC Series

The KLC ultra-precision thermosensitive resistor series from Alpha Electronics offers a highly accurate device that has a resistivity which varies linearly with temperature change in a through-hole package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce these resistors that are ideally designed for temperature detection, providing a small size and rapid response. The temperature characteristics for the KLC series can be freely adjusted, please see the datasheet under the Technical Library tab or the TCR against resistance values available graph below for further details.

  • Ultra-precision thermosenstive through-hole resistor
  • Available in a wide range of resistance values from 20Ω to 40kΩ
  • Tolerance options from ±5.0% down to ±0.5% available
  • Temperature characteristics can be freely adjusted and are almost linear
  • Maximum working voltage of 300V
  • Power rating of 0.25W (at +70°C)
  • Maximum rated operating temperature +70°C
  • Working temperature from -65°C up to +125°C

These Alpha KLC ultra-precision thermosensitive resistors are made of material only a few µm thick and responds rapidly to temperature changes. Strict control of foil composition maintains uniform quality without fluctuation of temperature characteristics of resistance. They are produced by the same fine photo-etching technology used in other metal foil precision resistors from Alpha.

The KLC series has a pin pitch of 7.62 ±0.25mm.

Typical applications for the KLC ultra-precision thermosensitive resistor series include:

  • Cold junction reference for thermocouples
  • Temperature compensation in load cells
  • Temperature compensation device in semiconductor circuits
  • Temperature sensing devices

The below graph represents possible TCR values against resistance values available for the KLC thermosensitive resistor series. Please see the datasheet under the Technical Library tab for the full specifications for the KLC series.

Possible TCR values against resistance values available graph

Graph showing possible TCR options against resistance values available in the KLC series.

£0.00

Alpha MA Series

The MA ultra-precision transfer moulded resistor series from Alpha Electronics offers a wide resistance range from 1Ω up to 200kΩ with tight tolerances, all in a small through-hole package with a pin pitch of 3.81 ±0.25mm. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability.

  • Ultra-precision transfer moulded resistor
  • Available in any resistance between 1Ω and 200kΩ
  • Through-hole package with a pin pitch of 3.81 ±0.25mm
  • Tight tolerance options as low as ±0.005% available for resistances between 30Ω and 200kΩ
  • Tight TCR options available of ±1 ppm/°C (from 0°C up to +65°C, between 30Ω up to 200kΩ) or ±2.5 ppm/°C (from -55°C up to +125°C, between 30Ω up to 200kΩ)
  • Maximum working voltage of 300V
  • Power rating of 0.3W (at +125°C) or 0.2W (at 150kΩ or above)
  • Maximum rated operating temperature +125°C
  • Working temperature from -65°C up to +175°C

Alpha's Bulk Metal® foil resistor technology means that these transfer moulded, through-hole, ultra-precision resistors are ideal for precision measurements, also their low inductance makes them ideal for use at higher frequencies.

These resistors are constructed using an outer coating of transfer moulded epoxy resin, making the parts strongly resistant to heat, moisture and solvents. Internally, there are secondary leads which act as a buffer so that stress on the exterior leads is not transmitted to the foil, providing stability against vibrations when the resistor is mounted on a circuit.

The below table gives the full specifications for each resistor model available including the Alpha MA series:

Alpha MA Specifications

* Symbols parenthesized are for part number composition
✝ Resistance figures are the values obtained by measuring the leads at point 12.7±3.2mm away from the base for type MB, MC and MD, but, in case of resistance below 10Ω, the value at 1.6 ±0.6mm away from the base for all types
** Temperature characteristic Z is applicable for temperature range between 0°C and +60°C

£0.00

Alpha MB Series

The MB ultra-precision transfer moulded resistor series from Alpha Electronics offers a wide resistance range from 5Ω up to 400kΩ with tight tolerances, all in a small through-hole package with a pin pitch of 7.5 ±0.5mm. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability.

  • Ultra-precision transfer moulded resistor
  • Available in any resistance between 1Ω and 200kΩ
  • Through-hole package with a pin pitch of 7.5±0.5mm
  • Tight tolerance options as low as ±0.005% available for resistances between 30Ω and 400kΩ
  • Tight TCR options available of ±1 ppm/°C (from 0°C up to +65°C, between 30Ω and 400kΩ) or ±2.5 ppm/°C (from -55°C up to +125°C, between 30Ω and 400kΩ)
  • Maximum working voltage of 350V
  • Power rating of 0.5W (at +125°C) or 0.3W (at 200kΩ or above)
  • Maximum rated operating temperature +125°C
  • Working temperature from -65°C up to +175°C

Alpha's Bulk Metal® foil resistor technology means that these transfer moulded, through-hole, ultra-precision resistors are ideal for precision measurements, also their low inductance makes them ideal for use at higher frequencies.

These resistors are constructed using an outer coating of transfer moulded epoxy resin, making the parts strongly resistant to heat, moisture and solvents. Internally, there are secondary leads which act as a buffer so that stress on the exterior leads is not transmitted to the foil, providing stability against vibrations when the resistor is mounted on a circuit.

The below table gives the full specifications for each resistor model available including the Alpha MB series:

Alpha MB Specifications

* Symbols parenthesized are for part number composition
✝ Resistance figures are the values obtained by measuring the leads at point 12.7±3.2mm away from the base for type MB, MC and MD, but, in case of resistance below 10Ω, the value at 1.6 ±0.6mm away from the base for all types
** Temperature characteristic Z is applicable for temperature range between 0°C and +60°C

£0.00

Alpha MC Series

The MC ultra-precision transfer moulded resistor series from Alpha Electronics offers a wide resistance range from 1Ω up to 200kΩ with tight tolerances, all in a small through-hole package with a pin pitch of 5.08 ±0.25mm. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability.

  • Ultra-precision transfer moulded resistor
  • Available in any resistance between 1Ω and 200kΩ
  • Transfer moulded through-hole package with a pin pitch of 5.08 ±0.25mm
  • Tight tolerance options as low as ±0.005% available for resistances between 30Ω and 200kΩ
  • Tight TCR options available of ±1 ppm/°C (from 0°C up to +65°C, between 30Ω and 200kΩ) or ±2.5 ppm/°C (from -55°C up to +125°C, between 30Ω and 200kΩ)
  • Maximum working voltage of 300V
  • Power rating of 0.3W (at +125°C) or 0.2W (at 150kΩ or above)
  • Maximum rated operating temperature +125°C
  • Working temperature from -65°C up to +175°C

Alpha's Bulk Metal® foil resistor technology means that these transfer moulded, through-hole, ultra-precision resistors are ideal for precision measurements, also their low inductance makes them ideal for use at higher frequencies.

These resistors are constructed using an outer coating of transfer moulded epoxy resin, making the parts strongly resistant to heat, moisture and solvents. Internally, there are secondary leads which act as a buffer so that stress on the exterior leads is not transmitted to the foil, providing stability against vibrations when the resistor is mounted on a circuit.

The below table gives the full specifications for each resistor model available including the Alpha MC series:

Alpha MC Specifications

* Symbols parenthesized are for part number composition
✝ Resistance figures are the values obtained by measuring the leads at point 12.7±3.2mm away from the base for type MB, MC and MD, but, in case of resistance below 10Ω, the value at 1.6 ±0.6mm away from the base for all types
** Temperature characteristic Z is applicable for temperature range between 0°C and +60°C

£0.00

Alpha MD Series

The MD ultra-precision transfer moulded resistor series from Alpha Electronics offers a wide resistance range from 5Ω up to 80kΩ with tight tolerances, all in a small through-hole package with a pin pitch of 5.08 ±0.25mm. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability.

  • Ultra-precision transfer moulded resistor
  • Available in any resistance between 5Ω and 80kΩ
  • Transfer moulded through-hole package with a pin pitch of 5.08 ±0.25mm
  • Tight tolerance options as low as ±0.005% available for resistances between 30Ω and 80kΩ
  • Tight TCR options available of ±1 ppm/°C (from 0°C up to +65°C, between 100Ω and 80kΩ) or ±2.5 ppm/°C (from -55°C up to +125°C, between 30Ω and 80kΩ)
  • Maximum working voltage of 250V
  • Power rating of 0.125W (at +125°C)
  • Maximum rated operating temperature +125°C
  • Working temperature from -65°C up to +175°C

Alpha's Bulk Metal® foil resistor technology means that these transfer moulded, through-hole, ultra-precision resistors are ideal for precision measurements, also their low inductance makes them ideal for use at higher frequencies.

These resistors are constructed using an outer coating of transfer moulded epoxy resin, making the parts strongly resistant to heat, moisture and solvents. Internally, there are secondary leads which act as a buffer so that stress on the exterior leads is not transmitted to the foil, providing stability against vibrations when the resistor is mounted on a circuit.

The below table gives the full specifications for each resistor model available including the Alpha MD series:

Alpha MD Specifications

* Symbols parenthesized are for part number composition
✝ Resistance figures are the values obtained by measuring the leads at point 12.7±3.2mm away from the base for type MB, MC and MD, but, in case of resistance below 10Ω, the value at 1.6 ±0.6mm away from the base for all types
** Temperature characteristic Z is applicable for temperature range between 0°C and +60°C

£0.00

Alpha MP Series

The MP ultra-precision resistor series from Alpha Electronics offers a wide resistance range from 30Ω up to 30kΩ with tight tolerances down to +0.05% (100Ω to 30kΩ), all in a small surface-mount package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability. The Alpha MP series J-lead terminals provide flexibility compared to standard fixed surface-mount resistors as the resistive element internally is mechanically isolated from the leads via gold wire-bonding.

  • Surface-mount ultra-precision resistor
  • Available in any resistance between 30Ω and 30kΩ
  • Moulded package with J-lead terminations
  • The resistive element is mechanically isolated from the contact terminals
  • Tight tolerance of ±0.05% for resistances between 100Ω and 30kΩ
  • Tight TCR of ±5 ppm/°C (from -55°C up to +125°C, between 100Ω and 30kΩ) or ±10 ppm/°C (from -55°C up to +125°C, between 30Ω and 100Ω)
  • Maximum working voltage of 50V
  • Maximum working current of 0.35A
  • Power rating of 0.1W (at +125°C)
  • Maximum rated operating temperature +125°C
  • Working temperature from -65°C up to +175°C

Alpha's MP surface-mount, ultra-precision resistor series exhibit excellent high frequency characteristics thanks to their Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

These resistors are constructed using an outer coating of epoxy resin, which provides excellent resistance to moisture, heat and solvents. Internally, the resistive element is mechanically isolated from the lead frames using gold wire-bonding.

The below table gives the full specifications for each resistor model available including the Alpha MP series:

Alpha MP Specifications

* Please contact us for tighter tolerances

£0.00

Alpha MPH Series

The MPH ultra-precision resistor series from Alpha Electronics offers a wide resistance range from 30Ω up to 30kΩ with tight tolerances down to +0.05% (100Ω to 30kΩ), all in a small surface-mount package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability. Expanding on the standard Alpha MP series, the MPH series offers gold-plated J-lead terminals making them suitable for higher temperatures of up to +200°C. The gold-plated J-lead terminals provide flexibility compared to standard fixed surface-mount resistors as the resistive element internally is mechanically isolated from the leads via gold wire-bonding.

  • Surface-mount ultra-precision resistor
  • Available in any resistance between 30Ω and 30kΩ
  • Surface-mount moulded package with gold-plated J-lead terminations for high temperatures of up to +200°C
  • The resistive element is mechanically isolated from the contact terminals
  • Tight tolerance of ±0.05% for resistances between 100Ω and 30kΩ
  • Tight TCR of ±5 ppm/°C (from -55°C up to +125°C, between 100Ω and 30kΩ) or ±10 ppm/°C (from -55°C up to +125°C, between 30Ω and 100Ω)
  • Maximum working voltage of 50V
  • Maximum working current of 0.35A
  • Power rating of 0.1W (at +125°C)
  • Maximum rated operating temperature +125°C
  • Working temperature from -65°C up to +200°C

Alpha's MPH surface-mount, ultra-precision resistor series exhibit excellent high frequency characteristics thanks to their Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

These resistors are constructed using an outer coating of epoxy resin, which provides excellent resistance to moisture, heat and solvents. Internally, the resistive element is mechanically isolated from the lead frames using gold wire-bonding.

The below table gives the full specifications for each resistor model available including the Alpha MPH series:

Alpha MPH Specifications

* Please contact us for tighter tolerances

£0.00

Alpha MQ Series

The MQ ultra-precision resistor series from Alpha Electronics offers a wide resistance range from 30Ω up to 60kΩ with tight tolerances down to +0.05% (100Ω to 60kΩ), all in a small surface-mount package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability. The Alpha MQ series J-lead terminals provide flexibility compared to standard fixed surface-mount resistors as the resistive element internally is mechanically isolated from the leads via gold wire-bonding.

  • Surface-mount ultra-precision resistor
  • Available in any resistance between 30Ω and 60kΩ
  • Surface-mount moulded package with J-lead terminations
  • The resistive element is mechanically isolated from the contact terminals
  • Tight tolerance of ±0.05% for resistances between 100Ω and 60kΩ
  • Tight TCR of ±5 ppm/°C (from -55°C up to +125°C, between 100Ω and 60kΩ) or ±10 ppm/°C (from -55°C up to +125°C, between 30Ω and 100Ω)
  • Maximum working voltage of 100V
  • Maximum working current of 0.35A
  • Power rating of 0.125W (at +125°C)
  • Maximum rated operating temperature +125°C
  • Working temperature from -65°C up to +175°C

Alpha's MQ surface-mount, ultra-precision resistor series exhibit excellent high frequency characteristics thanks to their Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

These resistors are constructed using an outer coating of epoxy resin, which provides excellent resistance to moisture, heat and solvents. Internally, the resistive element is mechanically isolated from the lead frames using gold wire-bonding.

The below table gives the full specifications for each resistor model available including the Alpha MQ series:

Alpha MQ Specifications

* Please contact us for tighter tolerances

£0.00

Alpha MQH Series

The MQH ultra-precision resistor series from Alpha Electronics offers a wide resistance range from 30Ω up to 60kΩ with tight tolerances down to +0.05% (100Ω to 60kΩ), all in a small surface-mount package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients and excellent long-term stability. Expanding on the standard Alpha MQ series, the MQH series offers gold-plated J-lead terminals making them suitable for higher temperatures of up to +200°C. The gold-plated J-lead terminals provide flexibility compared to standard fixed surface-mount resistors as the resistive element internally is mechanically isolated from the leads via gold wire-bonding.

  • Surface-mount ultra-precision resistor
  • Available in any resistance between 30Ω and 60kΩ
  • Surface-mount moulded package with gold-plated J-lead terminations for high temperatures of up to +200°C
  • The resistive element is mechanically isolated from the contact terminals
  • Tight tolerance of ±0.05% for resistances between 100Ω and 60kΩ
  • Tight TCR of ±5 ppm/°C (from -55°C up to +125°C, between 100Ω and 60kΩ) or ±10 ppm/°C (from -55°C up to +125°C, between 30Ω and 100Ω)
  • Maximum working voltage of 100V
  • Maximum working current of 0.35A
  • Power rating of 0.125W (at +125°C)
  • Maximum rated operating temperature +125°C
  • Working temperature from -65°C up to +200°C

Alpha's MQH surface-mount, ultra-precision resistor series exhibit excellent high frequency characteristics thanks to their Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

These resistors are constructed using an outer coating of epoxy resin, which provides excellent resistance to moisture, heat and solvents. Internally, the resistive element is mechanically isolated from the lead frames using gold wire-bonding.

The below table gives the full specifications for each resistor model available including the Alpha MQH series:

Alpha MQH Specifications

* Please contact us for tighter tolerances

£0.00

Alpha NLA Series

The NLA ultra-precision thermosensitive resistor series from Alpha Electronics offers a highly accurate device that has a resistivity which varies linearly with temperature change in a through-hole package. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to produce these resistors that are ideally designed for temperature detection, providing a small size and rapid response.

  • Ultra-precision thermosensitive through-hole resistor
  • Stocked in 15Ω, 100Ω and 500Ω resistance values with a tolerance of ±0.5%
  • Available in any resistance between 5Ω and 500Ω
  • Tolerance options from ±5.0% down to ±0.5% available
  • Linear +6660 ±1% ppm/°C TCR characteristic (from 0 to +100°C)
  • Response time of 0.9 seconds
  • Maximum working voltage of 250V
  • Power rating of 0.125W (at +70°C)
  • Maximum rated operating temperature +70°C
  • Working temperature from -65°C up to +125°C

These Alpha NLA ultra-precision thermosensitive resistors are made of material only a few µm thick and respond rapidly to temperature changes. Strict control of foil composition maintains uniform quality without fluctuation of temperature characteristics of resistance. They are produced by the same fine photo-etching technology used in other metal foil precision resistors from Alpha.

The NLA series has a pin pitch of 2.54 ±0.25mm.

Typical applications for the NLA ultra-precision thermosensitive resistor series include:

  • Cold junction reference for thermocouples
  • Temperature compensation in load cells
  • Temperature compensation device in semiconductor circuits
  • Temperature sensing devices

The below table gives the full specifications for each resistor model available including the Alpha NLA series:

Alpha NLA Specifications

* Symbols parenthesized are for part number composition

£0.00