16R250BU

Description：PTC RESET FUSE 16V 2.5A RADIAL
Series：POLY-FUSE®, USBR
Mfr：Littelfuse Inc.
Package：Bulk

SKU:28d08b2852ce Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

16R250BU is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 16V 2.5A RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for 16R250BU

Description：PTC RESET FUSE 16V 2.5A RADIAL
Series：POLY-FUSE®, USBR
Mfr：Littelfuse Inc.
Package：Bulk
Type：Polymeric
Voltage - Max：16V
Current - Hold (Ih) (Max)：2.5 A
Current - Trip (It)：5:00 AM
Current - Max：40 A
Time to Trip：40 s
Resistance - Initial (Ri) (Min)：20 mOhms
Resistance - Post Trip (R1) (Max)：60 mOhms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.449" L x 0.118" W (11.40mm x 3.00mm)
Height - Seated (Max)：0.720" (18.30mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

Ptc Resettable Fuses datasheet and documents for 16R250BU

16R250BU

Ptc Resettable Fuses Overview

The Littelfuse Inc. 16R250BU is a PolySwitch resettable polymer PTC fuse designed for circuit protection applications. It features a maximum operating voltage of 16V and a hold current (Ih) of 2.5A. The device trips at a minimum current of 5A, with a maximum trip time of 40 seconds. Initial resistance is 20 mOhms minimum, while post-trip resistance is 60 mOhms maximum. It supports a maximum fault current of 40A and operates within a temperature range of -40°C to 85°C.

Ptc Resettable Fuses Feature Summary

Utilizes polymer technology for self-resetting overcurrent protection
Provides radial through-hole mounting with tab-style leads
Designed for low-voltage DC circuit safeguarding

Ptc Resettable Fuses Applications

Portable electronics power input protection
Battery pack circuit protection
Consumer appliance control boards

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix variant against the datasheet to ensure correct electrical ratings. Confirm RoHS compliance status as documentation may vary by production batch. Check manufacturer lifecycle status to confirm active availability before finalizing procurement plans.

Ptc Resettable Fuses Selection Notes

Select based on system voltage not exceeding 16V and required hold current of 2.5A. Ensure ambient operating temperatures remain within the specified -40°C to 85°C range. Consider the 40A maximum fault current capability for short-circuit scenarios.

Ptc Resettable Fuses Part Context

This component belongs to the PolySwitch RUSBF series of resettable fuses from Littelfuse. It serves as a reusable alternative to traditional one-time fuses in low-voltage circuits, offering automatic recovery after fault conditions clear.