The 373 Series are TR5, sub-miniature, fast-acting type, 250V rated fuses, designed in accordance to UL 248- 14. Reduced PCB space requirements Direct solderable or plug-in versions Internationally approved Low internal resistance, Shocksafe casing Vibration resistant Halogen free CCCe for China import
Fast Acting Fuse 50mA 250V Radial Thermoplastic 8mm Product overview: 37300500410 from Littelfuse is a Circuit Protection Fuse for overcurrent protection, power input protection, equipment safety, automotive electronics, and industrial control panels. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 50mA, 250V. Search-friendly keywords include fuse, circuit protection, overcurrent protection, equipment safety, 50mA, 250V, Circuit Protection Fuse, Fuses. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 139-37300500410 can be used for catalog matching and distributor lookup.
Manufacturer: Littelfuse Inc.
Win Source Part Number: 777807-37300500410
Series: TR5 373
Packaging: Bulk
Mounting Style: Through Hole
Operating Temperature Range: -40°C ~ 85°C
Package: Radial, Can, Vertical
Current Rating: 50mA
Fuse Type: Board Mount (Cartridge Style Excluded)
Voltage Rating - AC: 250V
Response Time: Fast
Breaking Capacity @ Rated Voltage: 50A
Melting I2t: 0.0001
Approvals: CSA, cULus
Resistance: 7.265 Ohm
Family Name: 373
Categories: Circuit Protection
Dimension: 0.335" Dia x 0.315" H (8.50mm x 8.00mm)
Alternative Parts (Cross-Reference): 37300500430; 37300500000;
Introduction Date: August 01, 2000
ECCN: EAR99
Country of Origin: Philippines
Estimated EOL Date: 2025
Halogen Free: Compliant
Popularity: Medium
Fake Threat In the Open Market: 39 pct.
Supply and Demand Status: Limited
50mA 250V AC DC Fuse Board Mount (Cartridge Style Excluded) Through Hole Radial, Can, Vertical
FUSE BOARD MNT 50MA 250VAC RAD
FUSE, PCB, 50mA, 250V, FAST ACTING; Fuse Current:50mA; Voltage Rating VAC:250V; Product Range:TR5 373 Series; Voltage Rating VDC:-; Blow Characteristic:Fast Acting; Fuse Case Style:Radial Leaded; Breaking Capacity Current AC:50A RoHS Compliant: Yes
| Littelfuse, Inc. | ERSAELECTRONICS PTE. LTD. | Win Source Electronics | DigiKey | Acme Chip Technology Co., Limited | Newark, An Avnet Company | |
|---|---|---|---|---|---|---|
| Product Category | Fuses | Fuses | Fuses | Fuses | Fuses | Fuses |
| Product Number | 37300500410 | 139-37300500410 | 777807-37300500410 | WK3022BK-ND | 37300500410 | 67K1941 |
| Product Name | TR5® Subminiature Fuses | 50mA 250V Circuit Protection Fuse | Fuses - 37300500410 | Fuses | Circuit Protection - Fuses | Fuse, Pcb, 50Ma, 250V, Fast Acting; Fuse Current Littelfuse |
| Fuse Type | Miniature; Subminiature | |||||
| Approvals / Standards | RoHS; UL; CSA | RoHS | UL; CSA | RoHS | ||
| Features | Fast Acting | Fast Acting | ||||
| Rated Voltage | 250 volts | 250 volts | 250 volts | 250 volts | 250 volts | |
| Fuse Material | Thermoplastic |
