| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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|
700 pcs
|
700 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The RHEF400 is a polymeric PTC resettable fuse manufactured by Littelfuse Inc., designed for overcurrent protection in a variety of electronic circuits. With a hold current of 4A and a maximum voltage rating of 16V, it provides reliable and resettable fault protection.
Key electrical specifications include a low resistance of 60 mΩ, minimizing power loss during normal operation, and a fast trip time of 5 seconds at rated conditions. The device operates over a wide temperature range from -40°C to 125°C, making it suitable for demanding environments.
The RHEF400 features a through-hole mounting type in a radial disc package with a lead spacing of 5.05 mm. The compact dimensions (10 mm length, 3 mm width, 15 mm seated height) allow for easy integration into PCB designs.
This resettable fuse is ideal for applications requiring automatic recovery after fault conditions, such as power supplies, battery chargers, and automotive electronics.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.68 | $0.68 |
| 10+ | $0.62 | $0.62 |
| 50+ | $0.52 | $0.52 |
| 100+ | $0.48 | $0.48 |
| 250+ | $0.43 | $0.43 |
| 500+ | $0.43 | $0.43 |
| 1,000+ | $0.40 | $0.40 |
| 2,500+ | $0.36 | $0.36 |
| 5,000+ | $0.31 | $0.31 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The hold current is 4 A.
The maximum voltage rating is 16 V.
The time to trip is 5 seconds.
It comes in a Radial, Disc package with through-hole mounting.
The resistance is 60 mΩ.
It operates from -40°C to 125°C.
RoHS status is listed as RoHS3 compliant, but this is unverified (low confidence).