Product Overview
The MF-R900 is a radial leaded PTC resettable fuse from the Bourns MF-R series. It provides overcurrent protection for low-voltage power supply circuits and automatically resets after the fault condition is removed. Designed for high reliability, it features a flame-retardant epoxy coating and meets UL 94V-0 requirements. This component is RoHS compliant and halogen-free.
- Maximum Current (Imax): 40A
- Maximum Voltage (Vmax): 30V
- Hold Current (Ihold): 9 A at 23°C
- Trip Current (Itrip): 18A at 23°C
- Type: Radial leaded device
- Series: MF-R (PTC Resettable Fuses)
- Initial Resistance: 0.005Ω (min), 0.01Ω (max)
- Post-Trip Resistance (1 hour): 0.02Ω
- Max Time to Trip: 40s at 23°C
- Power Dissipation (Tripped): 4.2W
- Operating Temperature Range: −40°C to +85°C
- Maximum Surface Temperature (Tripped): 125°C
Product details
| Product Range |
MF-R |
| Holding Current |
9A |
| Time to Trip |
20s |
| Current Rating Max |
40A |
| Diameter |
- |
| Thickness |
3mm |
| Operating Temperature Min |
-40°C |
| Automotive Qualification Standard |
- |
| Voltage Rating |
30VDC |
| Trip Current |
18A |
| Fuse Shape |
Rectangular |
| Lead Spacing |
10.2mm |
| Length |
24.2mm |
| Height |
32.9mm |
| Operating Temperature Max |
85°C |
| SVHC |
No SVHC (04-Feb-2026) |
Other details
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