KOA Speer PSF4 Current Sensing Power Shunts
KOA Speer PSF4 Series Current Sensing Power Shunts are automotive-qualified, ultra-low resistant with large current detection capability, and are suitable for reflow soldering. These devices come with 4 terminal construction for precise current sensing. The PSF4 series can operate within the temperature from -65°C to +175°C and provide high resistance to heat. These current sensing power shunts are used in air conditioning, electronic controls, battery management, and inverters.
Features
- AEC-Q200 qualified
- Extremely low resistance with large current sensing
- High moisture resistance capability
- Pure copper terminations
- Reflow soldering
- RoHS compliant
- Up to 130°C rated terminal temperature
Applications
- Automotive:
- Air conditioning
- Electric and hybrid controls
- Electric water pump and oil pump
- Electronic controls
- Electronic power steering
- EV and HEV battery management
- Computer:
- DC/DC converters
- Li-Ion battery management
- Industrial:
- Air conditioning/heat pump
- Inverter control
- Oil/gas well drilling
Technical Specifications
| Parameters | Values |
|---|---|
| Power rating | 5W, 3W |
| Current rating | 100A, 54A |
| T.C.R | ±50ppm/°C max. |
| Resistance range | 0.5mΩ 1mΩ |
| Resistance tolerance | ±1% |
| Operating temperature range | -65°C to +175°C |
PSF4 Current Sensing Power Shunts Dimension Diagram
| Type (Inch Size Code) | Resist. (Ω) | Dimensions inches (mm) | |||||
|---|---|---|---|---|---|---|---|
| L | W | c | Ws | Wv | t | ||
| PSF4 (1216) | 0.5m | 0.118±0.004 (3.0±0.1) | 0.150±0.004 (3.8±0.1) | 0.037±0.006 (0.95±0.15) | 0.028±0.002 (0.7±0.05) | 0.020±0.002 (0.5±0.05) | 0.071±0.004 (1.8±0.1) |
| 1m | |||||||
