نظرة عامة على المنتج
The PMR50HZPFU7L00 is a 5025-size metal alloy current sensing resistor from Panasonic, with 7mOhm resistance and 1W power rating. The PMR series uses a metal alloy resistive element for low temperature coefficient (TCR +/-50 ppm/C) and excellent long-term stability. These ultra-low resistance values are used for current sensing in power supply, motor drive, and battery management applications where high accuracy and low inductance are required.
المواصفات الرئيسية
| Resistance | 7 mOhm (0.007 Ohm) |
| Tolerance | +/-1% (F) |
| Power Rating | 1W at 70C ambient |
| Temperature Coefficient (TCR) | +/-50 ppm/C |
| Max Current | ~12A (calculated from P=I2R at 1W) |
| Inductance | <5 nH (low inductance for high-frequency sensing) |
| Case Size | 5025 (5.0 x 2.5 x 1.0 mm) |
| Resistor Technology | Metal Alloy (bulk metal) |
| درجة حرارة التشغيل | -55C to +170C |
الميزات
- Ultra-low 7mOhm resistance for current sensing
- Metal alloy element with +/-50 ppm/C TCR
- +/-1% tolerance for accurate current measurement
- 1W power rating in 5025 footprint
- Low inductance (<5nH) for high-frequency current sensing
- Four-terminal (Kelvin) sensing capability in 2-terminal footprint
التطبيقات
- DC-DC converter output current sensing
- Battery management system current monitoring
- Motor drive phase current sensing
- Inverter bus current measurement
- Server and telecom power supply current limiting