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| PartNumber | B57881S212H | B57881S212J | B57881S212F |
| Description | Thermistors - NTC 2.1k 3560 1% | Thermistors - NTC 2.1k 3560 1% | Thermistors - NTC 2.1k 3560 1% |
| Manufacturer | EPCOS (TDK) | EPCOS (TDK) | EPCOS (TDK) |
| Product Category | Thermistors - NTC | Thermistors - NTC | Thermistors - NTC |
| Series | B57881S | B57881S | B57881S |
| Type | NTC | NTC | NTC |
| Packaging | Bulk | Bulk | Bulk |
| Termination Style | Radial | Radial | Radial |
| Operating Temperature Range | - 55 C to + 155 C | - 55 C to + 155 C | - 55 C to + 155 C |
| Height | 4 mm | 4 mm | 4 mm |
| Length | 3.5 mm | 3.5 mm | 3.5 mm |
| Package Case | Disc, 3.5mm Dia x 3.5mm W | Disc, 3.5mm Dia x 3.5mm W | Disc, 3.5mm Dia x 3.5mm W |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Tolerance | 3 % | 5 % | 1 % |
| Power Max | 100mW | 100mW | 100mW |
| Lead Spacing | 2.5 mm | 2.5 mm | 2.5 mm |
| Diameter | 3.5 mm | 3.5 mm | 3.5 mm |
| Resistance Tolerance | ±3% | ±5% | ±1% |
| Resistance in Ohms 25°C | 2.1k | 2.1k | 2.1k |
| B Value Tolerance | ±1% | ±1% | ±1% |
| B0 50 | - | - | - |
| B25 50 | - | - | - |
| B25 75 | - | - | - |
| B25 85 | - | - | - |
| B25 100 | 3560K | 3560K | 3560K |
| Length Lead Wire | - | - | - |
| Resistance | 2.1 kOhms | 2.1 kOhms | 2.1 kOhms |
| Lead Diameter | 0.4 mm | 0.4 mm | 0.4 mm |
| Power Rating | 100 mW | 100 mW | 100 mW |
| Part # Aliases | B57881S0212H000 | B57881S0212J000 | B57881S0212F000 |