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Littelfuse

Littelfuse 37411250410 1.25A 250V TR5 Radial Time-Lag Fuse

Part Number: 37411250410

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Littelfuse 37411250410 is configured as a 1.25A member of the 374 Series. The electrical envelope is 250V AC, supported by 50A @ 250VAC breaking capability. The TR5 radial package is intended for PCB mounting and this ordering code specifies short-lead bulk packaging in 1,000-piece quantity. Confirm application fit, derating and approvals with the manufacturer datasheet.

Rated Current1.25A
Rated Voltage250V AC
Breaking Capacity50A @ 250VAC
PackageTR5 Radial

The Littelfuse 374 Series identifies 37411250410 as its 1.25A option. The primary selection values are 250V AC and 50A @ 250VAC interrupting performance. The TR5 radial package is intended for PCB mounting and this ordering code specifies short-lead bulk packaging in 1,000-piece quantity. Package data calls for TR5 Radial construction with PCB Through-Hole mounting and tin-plated copper radial pins connections. Published dimensions are Ø8.5 × 8mm max body; 5.08mm lead spacing. Typical applications include Battery Chargers, Consumer Electronics, Power Supplies, Industrial Controllers. Check the official Littelfuse datasheet before final coordination.

Technical Specifications

Part Number
37411250410
Manufacturer Part Number
37411250410
Series
374 Series
Fuse Type
TR5 Time-Lag Radial Lead Fuse
Current Rating
1.25A
Voltage Rating
250V AC
AC / DC
AC
Breaking Capacity
50A @ 250VAC
I²t
4.453 A²s
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
UL 248-14
Terminal Type
Tin-plated Copper Radial Pins
Fuse Speed
Time Delay
Utilization Class
Supplemental
Approvals
CSA · RoHS · UL Recognized
Certifications
cULus · RoHS · Lead-Free · CSA
Body
Brown thermoplastic polyamide PA 6.6, UL 94 V-0
Operating temperature
-40°C to +85°C
Melting integral at 10×IN
4.453 A²s

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