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| PartNumber | PRG21BC4R7MM1RA | PRG21BC4R7M | PRG21BC4R7MM1RA,HK06039N |
| Description | Thermistors - PTC 4.7 ohms 90deg C | ||
| Manufacturer | Murata Electronics North America | Murata Electronics North America | - |
| Product Category | PTC Resettable Fuses | PTC Resettable Fuses | - |
| Series | POSISTORR PRG21BC | POSISTORR PRG21BC | - |
| Type | PTC | PTC | - |
| Packaging | Digi-ReelR Alternate Packaging | Digi-ReelR Alternate Packaging | - |
| Unit Weight | 0.000141 oz | 0.000141 oz | - |
| Current Rating | 5 A | 5 A | - |
| Termination Style | SMD/SMT | SMD/SMT | - |
| Operating Temperature Range | - 10 C to + 60 C | - 10 C to + 60 C | - |
| Height | 1.25 mm | 1.25 mm | - |
| Length | 2 mm | 2 mm | - |
| Width | 0.9 mm | 0.9 mm | - |
| Package Case | 0805 (2012 Metric) | 0805 (2012 Metric) | - |
| Tolerance | 20 % | 20 % | - |
| Current Max | 5A | 5A | - |
| Voltage | 20 V | 20 V | - |
| Current Hold Ih Max | 100mA | 100mA | - |
| Voltage Max | 20V | 20V | - |
| Current Trip It | 400mA | 400mA | - |
| R Min Max | - | - | - |
| Time to Trip | - | - | - |
| Resistance | 4.7 Ohms | 4.7 Ohms | - |