The Engineering Design Show, 8 – 9 October 2025, Coventry Building Society Arena, UK, Stand J3
The PE ultra-precision power shunt resistor series from Alpha Electronics offers 4-terminal (Kelvin) connection for current sensing and a power rating of up to 10W on a heat sink or 1.5W in free air (at +70°C) over a resistance range of 0.5Ω to 500Ω. By utilising Alpha’s Bulk Metal® foil resistor technology, they are able to offer low temperature coefficients down to ±2.5 ppm/°C between the resistance range 5Ω and 500Ω as well as tight tolerances down to ±0.01% between 25Ω and 500Ω.
The PE ultra-precision shunt resistor series exhibits excellent high frequency characteristics thanks to Alpha’s Bulk Metal® foil resistor technology, making them suitable for the most demanding precision and high power applications.
Their 4-terminal design and high precision make them ideal for current sensing applications.
Pin pitch for the Alpha PE series is 5.08 ±0.5mm.
The below table gives a summary of the specifications and options available for the Alpha PE series:
Weight | 0.00000 kg |
---|---|
Dimensions | 22.00 x 4.00 x 19.00mm |
Maximum Resistance | 500Ω |
Minimum Resistance | 0.5Ω |
Package / Size | |
Power Rating | |
Product Type | |
Resistance Value | Custom (0.5Ω – 1Ω), Custom (1Ω – 5Ω), Custom (5Ω – 25Ω), Custom (25Ω – 500Ω) |
Series / Model | |
Temperature Coefficient | |
Temperature Range (°C) | -55 to +155°C |
Termination / Connection | 4-Terminal |
Tolerance |
SKU | Resistance Value | Temperature Coefficient | Tolerance |
---|---|---|---|
Alpha PEW (0.5Ω - 1Ω) A | Custom (0.5Ω - 1Ω) | ±15 ppm/°C | ±0.05% |
Alpha PEX (0.5Ω - 1Ω) A | Custom (0.5Ω - 1Ω) | ±5 ppm/°C | ±0.05% |
Alpha PEW (0.5Ω - 1Ω) B | Custom (0.5Ω - 1Ω) | ±15 ppm/°C | ±0.1% |
Alpha PEX (0.5Ω - 1Ω) B | Custom (0.5Ω - 1Ω) | ±5 ppm/°C | ±0.1% |
Alpha PEW (0.5Ω - 1Ω) D | Custom (0.5Ω - 1Ω) | ±15 ppm/°C | ±0.5% |
Alpha PEX (0.5Ω - 1Ω) D | Custom (0.5Ω - 1Ω) | ±5 ppm/°C | ±0.5% |
Alpha PEW (0.5Ω - 1Ω) F | Custom (0.5Ω - 1Ω) | ±15 ppm/°C | ±1% |
Alpha PEX (0.5Ω - 1Ω) F | Custom (0.5Ω - 1Ω) | ±5 ppm/°C | ±1% |
Alpha PEW (0.5Ω - 1Ω) G | Custom (0.5Ω - 1Ω) | ±15 ppm/°C | ±2% |
Alpha PEX (0.5Ω - 1Ω) G | Custom (0.5Ω - 1Ω) | ±5 ppm/°C | ±2% |
Alpha PEW (0.5Ω - 1Ω) J | Custom (0.5Ω - 1Ω) | ±15 ppm/°C | ±5% |
Alpha PEX (0.5Ω - 1Ω) J | Custom (0.5Ω - 1Ω) | ±5 ppm/°C | ±5% |
Alpha PEW (1Ω - 5Ω) Q | Custom (1Ω - 5Ω) | ±15 ppm/°C | ±0.02% |
Alpha PEX (1Ω - 5Ω) Q | Custom (1Ω - 5Ω) | ±5 ppm/°C | ±0.02% |
Alpha PEW (1Ω - 5Ω) A | Custom (1Ω - 5Ω) | ±15 ppm/°C | ±0.05% |
Alpha PEX (1Ω - 5Ω) A | Custom (1Ω - 5Ω) | ±5 ppm/°C | ±0.05% |
Alpha PEW (1Ω - 5Ω) B | Custom (1Ω - 5Ω) | ±15 ppm/°C | ±0.1% |
Alpha PEX (1Ω - 5Ω) B | Custom (1Ω - 5Ω) | ±5 ppm/°C | ±0.1% |
Alpha PEW (1Ω - 5Ω) D | Custom (1Ω - 5Ω) | ±15 ppm/°C | ±0.5% |
Alpha PEX (1Ω - 5Ω) D | Custom (1Ω - 5Ω) | ±5 ppm/°C | ±0.5% |
Alpha PEW (1Ω - 5Ω) F | Custom (1Ω - 5Ω) | ±15 ppm/°C | ±1% |
Alpha PEX (1Ω - 5Ω) F | Custom (1Ω - 5Ω) | ±5 ppm/°C | ±1% |
Alpha PEW (1Ω - 5Ω) G | Custom (1Ω - 5Ω) | ±15 ppm/°C | ±2% |
Alpha PEX (1Ω - 5Ω) G | Custom (1Ω - 5Ω) | ±5 ppm/°C | ±2% |
Alpha PEW (1Ω - 5Ω) J | Custom (1Ω - 5Ω) | ±15 ppm/°C | ±5% |
Alpha PEX (1Ω - 5Ω) J | Custom (1Ω - 5Ω) | ±5 ppm/°C | ±5% |
Alpha PEW (25Ω - 500Ω) T | Custom (25Ω - 500Ω) | ±15 ppm/°C | ±0.01% |
Alpha PEY (25Ω - 500Ω) T | Custom (25Ω - 500Ω) | ±2.5 ppm/°C | ±0.01% |
Alpha PEX (25Ω - 500Ω) T | Custom (25Ω - 500Ω) | ±5 ppm/°C | ±0.01% |
Alpha PEW (25Ω - 500Ω) Q | Custom (25Ω - 500Ω) | ±15 ppm/°C | ±0.02% |
Alpha PEY (25Ω - 500Ω) Q | Custom (25Ω - 500Ω) | ±2.5 ppm/°C | ±0.02% |
Alpha PEX (25Ω - 500Ω) Q | Custom (25Ω - 500Ω) | ±5 ppm/°C | ±0.02% |
Alpha PEW (25Ω - 500Ω) A | Custom (25Ω - 500Ω) | ±15 ppm/°C | ±0.05% |
Alpha PEY (25Ω - 500Ω) A | Custom (25Ω - 500Ω) | ±2.5 ppm/°C | ±0.05% |
Alpha PEX (25Ω - 500Ω) A | Custom (25Ω - 500Ω) | ±5 ppm/°C | ±0.05% |
Alpha PEW (25Ω - 500Ω) B | Custom (25Ω - 500Ω) | ±15 ppm/°C | ±0.1% |
Alpha PEY (25Ω - 500Ω) B | Custom (25Ω - 500Ω) | ±2.5 ppm/°C | ±0.1% |
Alpha PEX (25Ω - 500Ω) B | Custom (25Ω - 500Ω) | ±5 ppm/°C | ±0.1% |
Alpha PEW (25Ω - 500Ω) D | Custom (25Ω - 500Ω) | ±15 ppm/°C | ±0.5% |
Alpha PEY (25Ω - 500Ω) D | Custom (25Ω - 500Ω) | ±2.5 ppm/°C | ±0.5% |
Alpha PEX (25Ω - 500Ω) D | Custom (25Ω - 500Ω) | ±5 ppm/°C | ±0.5% |
Alpha PEW (25Ω - 500Ω) F | Custom (25Ω - 500Ω) | ±15 ppm/°C | ±1% |
Alpha PEY (25Ω - 500Ω) F | Custom (25Ω - 500Ω) | ±2.5 ppm/°C | ±1% |
Alpha PEX (25Ω - 500Ω) F | Custom (25Ω - 500Ω) | ±5 ppm/°C | ±1% |
Alpha PEW (25Ω - 500Ω) G | Custom (25Ω - 500Ω) | ±15 ppm/°C | ±2% |
Alpha PEY (25Ω - 500Ω) G | Custom (25Ω - 500Ω) | ±2.5 ppm/°C | ±2% |
Alpha PEX (25Ω - 500Ω) G | Custom (25Ω - 500Ω) | ±5 ppm/°C | ±2% |
Alpha PEW (25Ω - 500Ω) J | Custom (25Ω - 500Ω) | ±15 ppm/°C | ±5% |
Alpha PEY (25Ω - 500Ω) J | Custom (25Ω - 500Ω) | ±2.5 ppm/°C | ±5% |
Alpha PEX (25Ω - 500Ω) J | Custom (25Ω - 500Ω) | ±5 ppm/°C | ±5% |
Alpha PEW (5Ω - 25Ω) Q | Custom (5Ω - 25Ω) | ±15 ppm/°C | ±0.02% |
Alpha PEY (5Ω - 25Ω) Q | Custom (5Ω - 25Ω) | ±2.5 ppm/°C | ±0.02% |
Alpha PEX (5Ω - 25Ω) Q | Custom (5Ω - 25Ω) | ±5 ppm/°C | ±0.02% |
Alpha PEW (5Ω - 25Ω) A | Custom (5Ω - 25Ω) | ±15 ppm/°C | ±0.05% |
Alpha PEY (5Ω - 25Ω) A | Custom (5Ω - 25Ω) | ±2.5 ppm/°C | ±0.05% |
Alpha PEX (5Ω - 25Ω) A | Custom (5Ω - 25Ω) | ±5 ppm/°C | ±0.05% |
Alpha PEW (5Ω - 25Ω) B | Custom (5Ω - 25Ω) | ±15 ppm/°C | ±0.1% |
Alpha PEY (5Ω - 25Ω) B | Custom (5Ω - 25Ω) | ±2.5 ppm/°C | ±0.1% |
Alpha PEX (5Ω - 25Ω) B | Custom (5Ω - 25Ω) | ±5 ppm/°C | ±0.1% |
Alpha PEW (5Ω - 25Ω) D | Custom (5Ω - 25Ω) | ±15 ppm/°C | ±0.5% |
Alpha PEY (5Ω - 25Ω) D | Custom (5Ω - 25Ω) | ±2.5 ppm/°C | ±0.5% |
Alpha PEX (5Ω - 25Ω) D | Custom (5Ω - 25Ω) | ±5 ppm/°C | ±0.5% |
Alpha PEW (5Ω - 25Ω) F | Custom (5Ω - 25Ω) | ±15 ppm/°C | ±1% |
Alpha PEY (5Ω - 25Ω) F | Custom (5Ω - 25Ω) | ±2.5 ppm/°C | ±1% |
Alpha PEX (5Ω - 25Ω) F | Custom (5Ω - 25Ω) | ±5 ppm/°C | ±1% |
Alpha PEW (5Ω - 25Ω) G | Custom (5Ω - 25Ω) | ±15 ppm/°C | ±2% |
Alpha PEY (5Ω - 25Ω) G | Custom (5Ω - 25Ω) | ±2.5 ppm/°C | ±2% |
Alpha PEX (5Ω - 25Ω) G | Custom (5Ω - 25Ω) | ±5 ppm/°C | ±2% |
Alpha PEW (5Ω - 25Ω) J | Custom (5Ω - 25Ω) | ±15 ppm/°C | ±5% |
Alpha PEY (5Ω - 25Ω) J | Custom (5Ω - 25Ω) | ±2.5 ppm/°C | ±5% |
Alpha PEX (5Ω - 25Ω) J | Custom (5Ω - 25Ω) | ±5 ppm/°C | ±5% |
Product name | SKU | Datasheet | ||
---|---|---|---|---|
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