Littelfuse PolySwitch radial-leaded devices represent the most comprehensive and complete set of PPTC products available in the industry today. RUEF series is for balance of voltage rating (30V) and hold current (up to 9A). Resettable and single-use overcurrent devices Wide range of form factor and termination methods Devices compatible with high-volume electronics assembly Lead-free, halogen-free, and RoHS compliant
PTC Resettable Fuse, 0.05ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT Product overview: RUEF400K-2 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 Through-Hole, 0.05ohm. Search-friendly keywords include fuse, circuit protection, overcurrent protection, equipment safety, Through-Hole, 0.05ohm, Circuit Protection Fuse, PTC Resettable Fuses. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 150-RUEF400K-2 can be used for catalog matching and distributor lookup.
Win Source Part Number: 1361654-RUEF400K-2
Category: Circuit Protection - PTC Resettable Fuses
Temperature Range - Operating: -40°C ~ 85°C
Fake Threat In the Open Market: 55 pct.
Type: Polymeric
MSL Level: Not Applicable
Mfr: Littelfuse Inc.
Series: PolySwitch®, RUEF
Package: Tape & Reel (TR)
Product Status: Active
Package / Case: Radial, Disc
Mounting Type: Through Hole
HTSUS: 8533.40.8070
Lead Spacing: 0.199" (5.05mm)
Size / Dimension: 0.551" L x 0.118" W (14.00mm x 3.00mm)
Height - Seated (Max): 0.839" (21.30mm)
ECCN: EAR99
Current - Max: 100 A
Approval Agency: CQC, CSA, TUV, UL
Current - Hold (Ih) (Max): 4 A
Voltage - Max: 30V
Current - Trip (It): 8 A
Time to Trip: 12.7 s
Resistance - Initial (Ri) (Min): 10 mOhms
Resistance - Post Trip (R1) (Max): 50 mOhms
California Prop 65: Warning Information
PTC RESET FUSE 30V 4A RADIAL
| Littelfuse, Inc. | ERSAELECTRONICS PTE. LTD. | Win Source Electronics | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|
| Product Category | Fuses | Fuses | Fuses | Fuses |
| Product Number | RUEF400K-2 | 150-RUEF400K-2 | 1361654-RUEF400K-2 | RUEF400K-2 |
| Product Name | 30V PolySwitch Lead-Free Radial Leaded Resettable PPTC | Through-Hole 0.05ohm Circuit Protection Fuse | Circuit Protection - PTC Resettable Fuses | Circuit Protection - PTC Resettable Fuses |
| Mounting | Solderable (with leads) | Through Hole |
