| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
11,940 pcs
|
11940 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Current | |
| Current - Max | |
| Halogen Free | |
| Height | |
| Hold Current | |
| Lead Spacing | |
| Lead Style | |
| Length | |
| Mounting Type | |
| Operating Temperature | |
| Package / Case | |
| Power Dissipation | |
| Resistance | |
| Resistance - Initial (Max) | |
| Resistance - Initial (Min) | |
| Resistance - Initial (Typ) | |
| Tape & Reel | |
| Time to Trip | |
| Trip Current | |
| Type | |
| Voltage | |
| Voltage - Max | |
| Voltage - Operating | |
| Width |
The Littelfuse 250R145U is a polymeric PTC resettable fuse from the 250R Series, designed for overcurrent protection in telecom and networking equipment. It features a hold current of 145 mA at 20°C still air and a minimum trip current of 290 mA. The device operates at 60V with a maximum interrupt voltage of 250V and can handle fault currents up to 3 A.
The 250R145U offers a typical time to trip of 2.5 seconds at 2.5 A, with typical power dissipation of 1 W in the tripped state. Initial resistance ranges from 3 Ω minimum to 14 Ω maximum, with a typical value of 6 Ω.
This component is housed in a radial, disc package with a lead spacing of 5.10 mm, measuring 6.50 mm in length, 4.60 mm in width, and 11.00 mm in height. It operates over a temperature range of -40°C to 85°C.
The hold current is 145 mA at 20°C still air.
The minimum trip current is 290 mA at 20°C still air.
The maximum interrupt voltage is 250V and the operating voltage is 60V.
The maximum time to trip is 2.5 seconds at 2.5 A.
It is a radial, disc through-hole package with a lead spacing of 5.10 mm.
The device operates from -40°C to 85°C.
The datasheet states it is RoHS-compliant, Lead-Free and Halogen-Free.