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| PartNumber | B57891S103F8 | B57891S103H8 | B57891S104F8 |
| Description | Thermistors - NTC 10k 3950 3% | Thermistors - NTC 10k 3950 3% | Thermistors - NTC 100k 4450 1% |
| Manufacturer | EPCOS (TDK) | EPCOS (TDK) | EPCOS (TDK) |
| Product Category | Thermistors - NTC | Thermistors - NTC | Thermistors - NTC |
| Series | B57891S | B57891S | B57891S |
| Type | NTC | NTC | NTC |
| Packaging | Bulk | Bulk | Bulk |
| Unit Weight | 0.007055 oz | 0.007055 oz | 0.007055 oz |
| Termination Style | Radial | Radial | Radial |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 125 C | - 40 C to + 125 C |
| Length | 38 mm | 3.5 mm | 38 mm |
| Width | 4.5 mm | - | 4.5 mm |
| Package Case | Disc, 4.5mm Dia x 4.5mm W | Disc, 4.5mm Dia x 4.5mm W | Disc, 4.5mm Dia x 4.5mm W |
| Operating Temperature | -40°C ~ 125°C | -55°C ~ 155°C | -40°C ~ 125°C |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Tolerance | 1 % | 3 % | 1 % |
| Power Max | 200mW | 200mW | 200mW |
| Lead Spacing | 2.5 mm | 2.5 mm | 2.5 mm |
| Diameter | 4.5 mm | 3.5 mm | 4.5 mm |
| Resistance Tolerance | ±1% | ±3% | ±1% |
| Resistance in Ohms 25°C | 10k | 10k | 100k |
| B Value Tolerance | ±1% | ±1% | ±1% |
| B0 50 | - | - | - |
| B25 50 | - | - | - |
| B25 75 | - | - | - |
| B25 85 | - | - | - |
| B25 100 | 3950K | 3950K | 4450K |
| Length Lead Wire | 1.42" (36.00mm) | - | 1.42" (36.00mm) |
| Resistance | 10 kOhms | 10 kOhms | 100 kOhms |
| Lead Diameter | 0.5 mm | 0.5 mm | 0.5 mm |
| Power Rating | 200 mW | 200 mW | 200 mW |
| B Parameter | 3950 K | - | 4450 K |
| Part # Aliases | B57891S0103F008 | B57891S0103H008 | B57891S0104F008 |