CSR Precision Current Sensing Resistors Features: 1. Low inductance. 2. Low temperature coefficient. 3. Very low resistance value. 4. Resistance tolerance: ±1%、 ±2%、 ±5%. 5. Suitable for all kinds current sense application.
CSR Precision Current Sensing Resistors
Product | CSR Precision Current Sensing Resistors |
Features | 1. Low inductance. 2. Low temperature coefficient. 3. Very low resistance value. 4. Resistance tolerance: ±1%、 ±2%、 ±5%. 5. Suitable for all kinds current sense application. |
Electrical And Mechanical Performance of CSR Precision Current Sensing Resistors:
Characteristics | Standards | Test Methods |
Resistance Tolerance | ±5%(J)、±2%(G)、±1%(F) | . |
Resistance Temp. Coeff. | ±100 ppm/°C | -55°C~200°C |
Power Rating Load | Surface temp. 275°C Max.△R/R≤±1% | Rated voltage for 30 minutes |
Inductance | <10nH | . |
Solder-ability | Minimum95%coverage | 235°C±5°C for 2 seconds |
Resistance to Soldering Heat | No evidence of mechanical damage.△R/R≤±1% | 270±5°Cfor10 ±1 seconds 350±10°Cfor3.5 ±0.5 seconds |
Environmental Characteristics of CSR Precision Current Sensing Resistors:
Characteristics | Standards | Test Methods |
Temp. Cycle | △R/R≤±1% | -55*C( 30 min.) —♦ Room Tenp.( 3 min.) —♦ *200°C(30min.) —♦ Room Tenp.( 3 min.)/(5 cycles) |
Load Life | △R/R≤±1% | Rated power load 90 minutes ON 30 minutes OFF 70'C 1000 hours |
Moisture-proof Load Life | △R/R≤±1% | Rated power load 90 minutes ON 30 minutes OFF 4O'C95%RH1000 hours |
Dimensions of CSR Precision Current Sensing Resistors:
Rated Wattage
| H(max.)
| h±0.3 | c±0.2 | d±0.05 | p±0.5 | Resistance Range(mÙ)
|
1W
| 25
| 3.2
| 1.6
| 1
| 12
| 5~25
|
3W
| 25
| 3.2
| 1.6
| 1
| 15 | 5~25
|
5W
| 25
| 3.2
| 1.6
| 1
| 20 | 10~25
|
Derating Curve of CSR Precision Current Sensing Resistors:
For resistors operated in ambient temperatures above 70,power rating must be derated in accordance with the curve below.
Surface Temperature Rise of CSR Precision Current Sensing Resistors:
