Alpha Electronics - Bulk Metal® Foil Resistors - Rhopoint Components https://www.rhopointcomponents.com/manufacturers/vpg-foil-resistors/alpha-electronics/ Electronic Components, Sensors, Connectors & Enclosures Thu, 22 Feb 2024 14:10:27 +0000 en-GB hourly 1 https://www.rhopointcomponents.com/wp-content/uploads/2020/09/cropped-rc-marble-100x100.png Alpha Electronics - Bulk Metal® Foil Resistors - Rhopoint Components https://www.rhopointcomponents.com/manufacturers/vpg-foil-resistors/alpha-electronics/ 32 32 Alpha MCTF Series https://www.rhopointcomponents.com/product/components/resistors/precision-ultra-precision-resistors/alpha-mctf-series/ Mon, 24 Oct 2022 11:39:58 +0000 https://components.componentsdevelopment.com/?post_type=product&p=84433
  • Precision thin film resistor (transfer moulded)
  • Resistance ranges from 200kΩ up to 10MΩ
  • Tolerances from ±0.01% up to ±0.01% (model dependant)
  • TCR of 0±1ppm/°C to 0±10ppm/°C (model dependant)
  • Pin pitch of 35.08±0.25mm
  • Lead length of 10±3mm
  • Working temperature range from -65°C up to +175°C
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    The MCTF precision thin film resistor series from Alpha Electronics offers a wide resistance range from 200kΩ up to 10MΩ with tight tolerances from ±0.01% up to ±0.1%, all in a small through-hole package with a pin pitch of 3.81 ±0.25mm.

    Alpha’s Bulk Metal® foil resistor technology means that these transfer moulded, through-hole, ultra-precision resistors are ideal for precision measurements. 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.

    • Precision thin film resistor (transfer moulded)
    • Resistance ranges from 200kΩ up to 10MΩ
    • Tolerances from ±0.01% up to ±0.01% (resistance value dependent)
    • TCR from ±1ppm/°C up to ±10ppm/°C (resistance value dependent)
    • Maximum working voltage of 300V
    • Power rating of 0.2W (at +125°C)
    • Maximum rated operating temperature +125°C
    • Working temperature range from -65°C up to +175°C
    • Pin pitch of 5.08±0.25mm
    • Lead length of 10±3mm
    • Transfer moulded through-hole package
    • Inorganic element coating for moisture resistance

    Typical applications for the MCTF precision thin film resistor series include:

    • Current sense / Voltage divider for precision instrumentation
    • Automated test equipment
    • Medical
    • Electric Scales


    Alpha Electronics are a manufacturer of some of the most stable and precise resistors on the market. As part of the VPG group, the Alpha Electronics brand is globally rewarded for the accuracy and reliability of its Bulk Metal® Foil technology resistors. Alpha Electronics has been living the conviction globally known to engineers for consistently delivering the highly desirable characteristics of “Stability, Accuracy and Reliability”. Please visit https://www.alpha-elec.co.jp for more information.

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    Alpha MATF Series https://www.rhopointcomponents.com/product/components/resistors/precision-ultra-precision-resistors/alpha-matf-series/ Mon, 17 Oct 2022 15:16:25 +0000 https://components.componentsdevelopment.com/?post_type=product&p=83981
  • Precision thin film resistor (transfer moulded)
  • Resistance ranges from 200kΩ up to 10MΩ
  • Tolerances from ±0.01% up to ±0.01% (model dependant)
  • TCR of 0±1ppm/°C to 0±10ppm/°C (model dependant)
  • Pin pitch of 3.81±0.25mm
  • Lead length of 25±10mm
  • Working temperature range from -65°C up to +175°C
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    The MATF precision thin film resistor series from Alpha Electronics offers a wide resistance range from 200kΩ up to 10MΩ with tight tolerances from ±0.01% up to ±0.1%, all in a small through-hole package with a pin pitch of 3.81 ±0.25mm.

    Alpha’s Bulk Metal® foil resistor technology means that these transfer moulded, through-hole, ultra-precision resistors are ideal for precision measurements. 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.

    • Precision thin film resistor (transfer moulded)
    • Resistance ranges from 200kΩ up to 10MΩ
    • Tolerances from ±0.01% up to ±0.01% (resistance value dependent)
    • TCR from ±1ppm/°C up to ±10ppm/°C (resistance value dependent)
    • Maximum working voltage of 300V
    • Power rating of 0.2W (at +125°C)
    • Maximum rated operating temperature +125°C
    • Working temperature range from -65°C up to +175°C
    • Pin pitch of 3.81±0.25mm
    • Lead length of 25±10mm
    • Transfer moulded through-hole package
    • Inorganic element coating for moisture resistance

    Typical applications for the MATF precision thin film resistor series include:

    • Current sense / Voltage divider for precision instrumentation
    • Automated test equipment
    • Medical
    • Electric Scales


    Alpha Electronics are a manufacturer of some of the most stable and precise resistors on the market. As part of the VPG group, the Alpha Electronics brand is globally rewarded for the accuracy and reliability of its Bulk Metal® Foil technology resistors. Alpha Electronics has been living the conviction globally known to engineers for consistently delivering the highly desirable characteristics of “Stability, Accuracy and Reliability”. Please visit https://www.alpha-elec.co.jp for more information.

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    Alpha RWC Series https://www.rhopointcomponents.com/product/components/resistors/current-sensing-low-resistance-resistors/alpha-rwc-series/ Mon, 23 Nov 2020 20:25:02 +0000 https://components.rhopoint.com/product/alpha-rwc-series/
  • High precision wraparound resistor
  • Resistance range form 5Ω to 130kΩ
  • Tolerance from ±0.01% to ±0.5%
  • TCR of ±2 ppm/°C, ±5 ppm/°C or ±10 ppm/°C
  • Power rating of 0.3W (at 70°C)
  • Temperature range from -65°C to +155°C
  • The post Alpha RWC Series appeared first on Rhopoint Components.

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    The RWC precision wraparound SMD resistor series from Alpha Electronics offers resistances from 5Ω up to 30kΩ, all with a small 1206 chip size. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to offer low tolerances down to ±0.01% (between 1kΩ and 30kΩ) as well as a low TCR of ±2 ppm/°C (between -25°C and +125°C) from 100Ω up to 30kΩ. The Alpha RWC series also offers excellent load-life stability of ±0.005% typical (+70°C, 2000 hours at rated power).

    • High precision wraparound SMD resistor
    • Available in any resistance between 5Ω and 30kΩ
    • 2-terminal resistor in a 1206 surface-mount package
    • Power rating of 0.3W at +70°C
    • Tolerances as low as ±0.01% over the resistance range of 1kΩ to 30kΩ
    • Tight TCR available as low as ±2 ppm/°C over the resistance range of 100Ω to 30kΩ
    • Maximum working voltage of 95V
    • Maximum rated operating temperature +70°C
    • Temperature range from -65°C up to +155°C

     

    The RWC high precision wraparound surface-mount resistor series offers high precision and excellent stability thanks to Alpha’s Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

     

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

    Alpha RWC Specifications

     

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    Alpha RWB Series https://www.rhopointcomponents.com/product/components/resistors/current-sensing-low-resistance-resistors/alpha-rwb-series/ Mon, 23 Nov 2020 20:25:02 +0000 https://components.rhopoint.com/product/alpha-rwb-series/
  • High precision wraparound resistor
  • Resistance range form 10Ω to 10kΩ
  • Tolerance from ±0.02% to ±0.5%
  • TCR of ±2 ppm/°C, ±5 ppm/°C or ±10 ppm/°C
  • Power rating of 0.2W (at 70°C)
  • Temperature range from -65°C to +155°C
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    The RWB precision wraparound SMD resistor series from Alpha Electronics offers resistances from 10Ω up to 10kΩ, all with a small 0805 chip size. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to offer low tolerances down to ±0.02% (between 1kΩ and 10kΩ) as well as a low TCR of ±2 ppm/°C (between -25°C and +125°C) from 100Ω up to 10kΩ. The Alpha RWB series also offers excellent load-life stability of ±0.005% typical (+70°C, 2000 hours at rated power).

    • High precision wraparound SMD resistor
    • Available in any resistance between 10Ω and 10kΩ
    • 2-terminal resistor in a 0805 surface-mount package
    • Power rating of 0.2W at +70°C
    • Tolerances as low as ±0.02% over the resistance range of 1kΩ to 10kΩ
    • Tight TCR available as low as ±2 ppm/°C over the resistance range of 100Ω to 10kΩ
    • Maximum working voltage of 45V
    • Maximum rated operating temperature +70°C
    • Temperature range from -65°C up to +155°C

     

    The RWB high precision wraparound surface-mount resistor series offers high precision and excellent stability thanks to Alpha’s Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

     

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

    Alpha RWB Specifications

     

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    Alpha RWA Series https://www.rhopointcomponents.com/product/components/resistors/current-sensing-low-resistance-resistors/alpha-rwa-series/ Mon, 23 Nov 2020 20:25:02 +0000 https://components.rhopoint.com/product/alpha-rwa-series/
  • High precision wraparound resistor
  • Resistance range form 100Ω to 5kΩ
  • Tolerance of ±005% or ±0.1%
  • TCR of ±5 ppm/°C
  • Power rating of 0.1W (at 70°C)
  • Temperature range from -65°C to +155°C
  • The post Alpha RWA Series appeared first on Rhopoint Components.

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    The RWA precision wraparound SMD resistor series from Alpha Electronics offers resistances from 100Ω up to 5kΩ, all with a small 0603 chip size. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to offer low tolerances down to ±0.05% (between 1kΩ and 5kΩ) as well as a low TCR of ±5 ppm/°C (between -25°C and +125°C) over the whole resistance range. The Alpha RWA series also offers excellent load-life stability of ±0.005% typical (+70°C, 2000 hours at rated power).

    • High precision wraparound SMD resistor
    • Available in any resistance between 100Ω and 5kΩ
    • 2-terminal resistor in a 0603 surface-mount package
    • Power rating of 0.1W at +70°C
    • Tolerances as low as ±0.05% over the resistance range of 1kΩ to 5kΩ
    • Tight TCR available of ±5 ppm/°C over the resistance range of 100Ω to 5kΩ
    • Maximum working voltage of 22V
    • Maximum rated operating temperature +70°C
    • Temperature range from -65°C up to +155°C

     

    The RWA high precision wraparound surface-mount resistor series offers high precision and excellent stability thanks to Alpha’s Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

     

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

    Alpha RWA Specifications

     

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    Alpha RBD Series https://www.rhopointcomponents.com/product/components/resistors/current-sensing-low-resistance-resistors/alpha-rbd-series/ Mon, 23 Nov 2020 19:57:28 +0000 https://components.rhopoint.com/product/alpha-rbd-series/
  • Ultra-precision current sensing resistor
  • Resistance range form 0.01Ω to 1Ω
  • Tolerance from ±0.5% to ±5%
  • TCR of ±10 ppm/°C or ±25 ppm/°C
  • Power rating of 0.5W (at 70°C)
  • Temperature range from -65°C to +155°C
  • The post Alpha RBD Series appeared first on Rhopoint Components.

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    The RBD ultra-precision current sense resistor series from Alpha Electronics offers low resistances of between 0.01Ω and 1Ω all in a small 2-terminal flip-chip package. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to offer low tolerances down to ±0.5% as well as a low TCR of ±10 ppm/°C (between -25°C and +125°C) both within the resistance range of 0.1Ω to 1Ω.

    • Ultra-precision current sense flip-chip resistor
    • Available in any resistance between 0.01Ω and 1Ω
    • 2-terminal current sense resistor in a flip-chip surface-mount package
    • Power rating of 0.5W at +70°C
    • Tolerances as low as ±0.5% over the resistance range of 0.1Ω to 1Ω
    • Tight TCR available of ±10 ppm/°C over the resistance range of 0.1Ω to 1Ω
    • Maximum rated operating temperature +70°C
    • Temperature range from -65°C up to +155°C

     

    The RBD ultra-precision current sense resistor series offer ultra-precision thanks to Alpha’s Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

    Temperature rise of resistor surface can be optimised by using a board made of metal. This keeps the temperature rise very low allowing increased power rating of the parts i.e. 2W at +70°C. Please keep the temperature of board less than +90°C when using glazed epoxy board.

     

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

    Alpha RBD Specifications
    * Symbols parenthesized are for part number composition

     

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    Alpha PSB Series https://www.rhopointcomponents.com/product/components/resistors/current-sensing-low-resistance-resistors/alpha-psb-series/ Mon, 23 Nov 2020 19:57:28 +0000 https://components.rhopoint.com/product/alpha-psb-series/
  • Ultra-precision power shunt resistor
  • Resistance range form 0.001Ω to 1Ω
  • Tolerance of ±0.1%, ±0.5% or 1%
  • TCR of ±5 ppm/°C or ±15 ppm/°C
  • Power rating of upto 40W (on a heat sink at 25°C)
  • Temperature range from -55°C up to +85°C
  • The post Alpha PSB Series appeared first on Rhopoint Components.

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    The PSB ultra-precision power shunt resistor series from Alpha Electronics offers 4-terminal (Kelvin) connections for current sensing and a power rating of up to 40W on a heat sink or 12W in free air (at +25°C) all with a low ohmic resistance range from 0.001Ω to 1Ω. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to offer excellent temperature characteristics with low temperature coefficients down to ±5 ppm/°C between the resistance range 0.005Ω and 1Ω.

    • Ultra-precision power shunt resistor
    • Available in any resistance between 0.001Ω and 1Ω
    • 4-terminal (Kelvin) connection high power shunt
    • High heat dissipation due to aluminium-clad construction with fins
    • Power rating of 40W on a heat sink or 12W in free air at +25°C
    • Tolerances as low as ±0.1% over the whole resistance range
    • Tight TCR available of ±5 ppm/°C between 0.005Ω and 1Ω
    • Maximum working current of 100A
    • Maximum rated operating temperature +25°C
    • Temperature range from -55°C up to +85°C

     

    The PSB ultra-precision shunt resistor series exhibits excellent temperature characteristics thanks to Alpha’s Bulk Metal® foil resistor technology, making them suitable for the most demanding precision and high power applications.

    The 4-terminal connections of this high power shunt series offers accurate current sensing capabilities even in low extremity of resistance.

    The PSB series has been designed for easy mounting to heat sink or water-cooled radiator as well as with threaded holes to fix cables with screws (Caution: please screw current terminals >5N·m and voltage terminals >1N·m)

    Their 4-terminal design and high precision make them ideal for current sensing in precise power supply or motor driver applications.

     

    The below table gives a summary of the specifications and options available for the Alpha PSB series:

    Alpha PSB Specifications
    * Thermal resistance of the heat sink 1°C/W
    Available to use higher rated power with elevation of cooling effect
    Please keep temperature of element surface less than +60°C

     

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    Alpha RBF Series https://www.rhopointcomponents.com/product/components/resistors/current-sensing-low-resistance-resistors/alpha-rbf-series/ Mon, 23 Nov 2020 19:57:28 +0000 https://components.rhopoint.com/product/alpha-rbf-series/
  • Ultra-precision current sensing resistor
  • Resistance range form 0.01Ω to 1Ω
  • Tolerance from ±0.5% to ±5%
  • TCR of ±10 ppm/°C or ±25 ppm/°C
  • Power rating of 1W (at 70°C)
  • Temperature range from -65°C to +155°C
  • The post Alpha RBF Series appeared first on Rhopoint Components.

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    The RBF ultra-precision current sense resistor series from Alpha Electronics offers low resistances of between 0.01Ω and 1Ω all in a small 2-terminal flip-chip package. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to offer low tolerances down to ±0.5% as well as a low TCR of ±10 ppm/°C (between -25°C and +125°C) both within the resistance range of 0.1Ω to 1Ω.

    • Ultra-precision current sense flip-chip resistor
    • Available in any resistance between 0.01Ω and 1Ω
    • 2-terminal current sense resistor in a flip-chip surface-mount package
    • Power rating of 1W at +70°C
    • Tolerances as low as ±0.5% over the resistance range of 0.1Ω to 1Ω
    • Tight TCR available of ±10 ppm/°C over the resistance range of 0.1Ω to 1Ω
    • Maximum rated operating temperature +70°C
    • Temperature range from -65°C up to +155°C

     

    The RBF ultra-precision current sense resistor series offer ultra-precision thanks to Alpha’s Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

    Temperature rise of resistor surface can be optimised by using a board made of metal. This keeps the temperature rise very low allowing increased power rating of the parts i.e. 2W at +70°C. Please keep the temperature of board less than +90°C when using glazed epoxy board.

     

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

    Alpha RBF Specifications
    * Symbols parenthesized are for part number composition 

     

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    Alpha RBH Series https://www.rhopointcomponents.com/product/components/resistors/current-sensing-low-resistance-resistors/alpha-rbh-series/ Mon, 23 Nov 2020 19:57:28 +0000 https://components.rhopoint.com/product/alpha-rbh-series/
  • Ultra-precision current sensing resistor
  • Resistance range form 0.01Ω to 0.1Ω
  • Tolerance from ±0.5% to ±5%
  • TCR of ±10 ppm/°C or ±25 ppm/°C
  • Power rating of 1.5W (at 70°C)
  • Temperature range from -65°C to +155°C
  • The post Alpha RBH Series appeared first on Rhopoint Components.

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    The RBH ultra-precision current sense resistor series from Alpha Electronics offers low resistances of between 0.01Ω and 1Ω all in a small 4-terminal (Kelvin connection) flip-chip package. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to offer low tolerances down to ±0.5% as well as a low TCR of ±10 ppm/°C between -25°C and +125°C.

    • Ultra-precision current sense flip-chip resistor
    • Available in any resistance between 0.01Ω and 1Ω
    • 4-terminal (Kelvin connection) current sense resistor in a flip-chip surface-mount package
    • Power rating of 1.5W at +70°C
    • Tolerances as low as ±0.5% over the whole resistance range of 0.01Ω to 1Ω
    • Tight TCR available of ±10 ppm/°C over the resistance range of 0.01Ω to 1Ω
    • Maximum rated operating temperature +70°C
    • Temperature range from -65°C up to +155°C

     

    The RBH ultra-precision current sense resistor series offer ultra-precision thanks to Alpha’s Bulk Metal® foil resistor technology, making them suitable for the most demanding precision applications.

    Temperature rise of resistor surface can be optimised by using a board made of metal. This keeps the temperature rise very low allowing increased power rating of the parts i.e. 2W at +70°C. Please keep the temperature of board less than +90°C when using glazed epoxy board.

     

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

    Alpha RBH Specifications
    * Symbols parenthesized are for part number composition 

     

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    Alpha TLA Series https://www.rhopointcomponents.com/product/components/resistors/precision-ultra-precision-resistors/alpha-tla-series/ Mon, 23 Nov 2020 19:57:28 +0000 https://components.rhopoint.com/product/alpha-tla-series/
  • Conformally coated thin film precision resistor
  • Resistance range from 100kΩ to 5MΩ
  • Tolerance from ±0.05% to ±1%
  • TCR of ±5 ppm/°C or ±10 ppm/°C
  • Power rating of 0.125W (at +70°C)
  • Temperature Range from -25°C up to +155°C
  • The post Alpha TLA Series appeared first on Rhopoint Components.

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    The TLA conformally coated resistor series from Alpha Electronics further expands their resistor range offerings by utilising thin film resistor technology to allow for larger resistance values of up to 5MΩ. The TLA series offers a precise resistor with a resistance range from 100kΩ up to 5MΩ all in a small through-hole package with low temperature coefficients down to ±5 ppm/°C (between -25°C and +125°C) as well as tolerances down to ±0.05%.

    • Conformally coated thin film through-hole resistor
    • Available in any resistance between 100kΩ and 5MΩ
    • Tight tolerance options as low as ±0.05% available over the whole resistance range
    • Tight TCR options available as low as ±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
    • Temperature range from -25°C up to +155°C

     

    The Alpha Electronics TLA thin film precision resistor series has been designed with terminals that are easy for insertion into the PCB.

    The TLA series offers a pin pitch of 2.54 ±0.25mm.

     

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

    Alpha TLA Specifications
    * Symbols parenthesized are for part number composition 

     

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