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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1 pcs
|
1 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Approval Agency | |
| Body Height | |
| Body Thickness | |
| Climatic Category | |
| Current | |
| Delivery Mode | |
| Diameter | |
| Dissipation Factor | |
| Heat Capacity | |
| Lead Diameter | |
| Lead Length | |
| Lead Spacing | |
| Lead Style | |
| Max Power | |
| Mounting Type | |
| R @ 25°C | |
| SVHC Present | |
| Tape & Reel | |
| Termination Style | |
| Thermal Time Constant | |
| Tolerance |
The TDK B57237S0259M000 is a leaded NTC thermistor designed for inrush current limiting in applications such as switch-mode power supplies and soft-start motors. It offers a nominal resistance of 2.5 Ohm at 25°C with a tolerance of ±20%, and can handle a maximum continuous current of 6.5 A. The maximum power dissipation at 25°C is 3.1 W, with a dissipation factor of 17 mW/K and a thermal time constant of 90 seconds in air.
This component is housed in a radial leaded through-hole package with a diameter of 15.0 mm, a height of 22.0 mm, and a thickness of 7.0 mm. The lead spacing is 7.5 mm and lead diameter is 0.8 mm. The leads are kinked, tinned copper wire with a minimum length of 25 mm. Delivery options include bulk, cardboard tape on reel, and ammo pack.
The B57237S0259M000 carries approvals from UL, IEC, VDE, and CQC, and the coating material is flame retardant to UL 94 V-0. The climatic category per IEC 60068-1 is 55/170/21, indicating a wide operating temperature range. This part is suitable for high-reliability designs requiring robust inrush current protection with stable electrical characteristics.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.20 | $1.20 |
| 10+ | $1.11 | $1.11 |
| 50+ | $0.92 | $0.92 |
| 100+ | $0.85 | $0.85 |
| 250+ | $0.76 | $0.76 |
| 500+ | $0.70 | $0.70 |
| 2,500+ | $0.65 | $0.65 |
| 5,000+ | $0.63 | $0.63 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The resistance at 25°C is 2.5 Ohm (±20% tolerance).
The maximum current rating is 6.5A(Imax).
The operating temperature range is -55°C to 170°C based on climaic category 55/170/21 per IEC 60068-1.
This part has approvals from UL, IEC, VDE, and CQC.
Delivery modes include bulk (standard), cardboard tape on reel, and ammopack.
The maximum power dissipation at 25°C is 3.1 W.
The body diameter is 15.0 mm, height 22.0 mm, thickness 7.0 mm. Lead spacing is 7.5 mm, lead diameter 0.8 mm, lead length 25.0 mm.