| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,500 pcs
|
1500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Automotive Grade | |
| Current | |
| Halogen Free | |
| Height | |
| Lead Spacing | |
| Length | |
| Mounting Type | |
| Operating Temperature | |
| Resistance | |
| Tape & Reel | |
| Time to Trip | |
| Type | |
| Voltage | |
| Width |
The Bourns MF-R400 is a polymeric PTC resettable fuse designed for overcurrent protection in electronic circuits. It features a hold current of 4A and a trip current of 8A, with a maximum voltage rating of 30V and a maximum interrupt current of 40A. The device has an initial resistance range of 0.01 to 0.03 ohms and a post-trip resistance of 0.05 ohms maximum. Under a fault condition of 20A, it trips within a maximum of 12.7 seconds and dissipates a typical tripped power of 2.5W.
This fuse operates over a temperature range of -40°C to 85°C and is packaged in a radial disc form factor with lead spacing of 5.1mm. It is RoHS compliant, lead free, and halogen free per Bourns definition. The MF-R400 is suitable for a variety of applications including power supplies, battery protection, and automotive electronics where resettable overcurrent protection is required.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.52 | $0.52 |
| 10+ | $0.44 | $0.44 |
| 50+ | $0.37 | $0.37 |
| 100+ | $0.33 | $0.33 |
| 250+ | $0.32 | $0.32 |
| 500+ | $0.27 | $0.27 |
| 1,000+ | $0.25 | $0.25 |
| 3,000+ | $0.23 | $0.23 |
| 6,000+ | $0.23 | $0.23 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The hold current is 4 A.
The maximum voltage is 30 V.
The maximum current is 40 A.
The maximum time to trip at 20 A is 12.7 seconds.
It comes in a radial disc through hole package with 5.1 mm lead spacing.