Littelfuse

Littelfuse 37211250001 1.25A 250V TR5 Time-Lag Radial Fuse

Name: Littelfuse 37211250001 1.25A 250V TR5 Time-Lag Radial Fuse
Brand: Littelfuse
SKU: 37211250001

Part Number: 37211250001

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Intended for PCB protection, Littelfuse 37211250001 provides a 1.25A 250V TR5 time-lag rating in a compact radial through-hole format with its specified lead option.

Rated Current1.25A

Rated Voltage250V AC

Breaking Capacity35A @ 250VAC

PackageTR5 Radial

Tags

372 Series 37211250001 Littelfuse Radial Fuse Time-Lag TR5

For maintenance and design review, Littelfuse 37211250001 provides 1.25A time-lag protection at 250V AC in the TR5 radial format. The through-hole fuse uses radial leads, a compact Ø8.5 × 8mm maximum body, and published breaking capability of 35A @ 250VAC. Its melting integral at 10× rated current is 13.75 A²s for coordination work. Match the current, voltage and interrupting level to the protected circuit before installation. Compare speed, approvals and mounting details before treating another fuse as an equivalent.

Technical Specifications

Part Number: 37211250001
Manufacturer Part Number: 37211250001
Series: 372 Series
Fuse Type: TR5 Radial Time-Lag Fuse
Current Rating: 1.25A
Voltage Rating: 250V AC
AC / DC: AC
Breaking Capacity: 35A @ 250VAC
I²t: Melting integral at 10×In: 13.75 A²s
Pre-arcing I²t: 13.75
Operating Temperature: -40°C to +85°C
Package / Dimensions: TR5 Radial
Mounting: PCB Through-Hole
Application: Battery chargers · Consumer Electronics · Industrial Controls · Power supplies
Standard: IEC 60127-3 · UL/CSA/NMX 248-1 and 248-14
Terminal Type: Radial Leads
Fuse Speed: Time Delay
Utilization Class: TR5
Approvals: CSA · IEC · NMX · UL Recognized
Certifications: IEC · UL Recognized · CSA · NMX
Ordering package code: 0001
Packaging / lead option: Tape & Ammopack
Pack quantity: 1000 pcs
Melting integral at 10×In: 13.75 A²s