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| PartNumber | B57234S220M51 | B57234S220M | B57234S221M |
| Description | Inrush Current Limiters NTC Thermistor S 234/22 /M 51 | Inrush Current Limiters NTC Thermistor S 234/22 /M | Inrush Current Limiters NTC Thermistor S 234/220 /M |
| Manufacturer | EPCOS (TDK) | EPCOS (TDK) | EPCOS (TDK) |
| Product Category | Thermistors - NTC | IC Chips | Thermistors - NTC |
| Series | B57234S | B57234S | B57234S |
| Type | NTC Thermistors for Inrush Current Limiting | NTC Thermistors for Inrush Current Limiting | NTC Thermistors for Inrush Current Limiting |
| Packaging | Tape & Reel (TR) | Bulk | Bulk |
| Part Aliases | B57234S0220M051 | B57234S0220M000 | B57234S0221M000 |
| Current Rating | 4 A | 4 A | 2 A |
| Operating Temperature Range | - 55 C to + 170 C | - 55 C to + 170 C | - 55 C to + 170 C |
| Width | 7 mm | 7 mm | 7 mm |
| Package Case | - | - | - |
| Operating Temperature | -55°C ~ 170°C | -55°C ~ 170°C | -55°C ~ 170°C |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Tolerance | 20 % | 20 % | 20 % |
| Power Max | 3.2W | 3.2W | 3.2W |
| Voltage | 110 VAC | 110 VAC | 110 VAC |
| Lead Spacing | 7.5 mm | 7.5 mm | 7.5 mm |
| Diameter | 15 mm | 15 mm | 15 mm |
| Resistance Tolerance | ±20% | ±20% | ±20% |
| Resistance in Ohms 25°C | 22 | 22 | 220 |
| B Value Tolerance | ±3% | ±3% | ±3% |
| B0 50 | - | - | - |
| B25 50 | - | - | - |
| B25 75 | - | - | - |
| B25 85 | - | - | - |
| B25 100 | 3300K | 3300K | 3900K |
| Length Lead Wire | - | - | - |
| Resistance | 22 Ohms | 22 Ohms | 220 Ohms |
| Lead Diameter | 0.8 mm | 0.8 mm | 0.8 mm |
| Power Rating | 3.2 W | 3.2 W | 3.2 W |
| Dissipation Factor DF | 17 mW/K | 17 mW/K | 17 mW/K |
| B Parameter | 3300 K | 3300 K | 3900 K |