A Premier B2B Part Search
Bourns MFR040299 PTC Resettable Fuse
Bourns MF-R040-2-99 is a resettable fuse offering overcurrent protection for low voltage power supplies and general electronics applications. Constructed with a cured, flame retardant epoxy polymer insulating material meeting UL 94V-0 requirements, this fuse provides reliable protection while maintaining safety standards. It is RoHS compliant and halogen-free, making it suitable for environmentally conscious designs. The resettable nature of the fuse allows for automatic recovery after a fault, minimizing downtime and maintenance. Available in various voltage and current ratings, the MF-R series is a versatile solution for protecting sensitive electronic circuits.
Bourns MFR040299 PTC Resettable Fuse Specifications:
- V max: 60 Volts
- I max: 40 Amps
- Ihold: 0.40 Amperes at 23°C
- Itrip: 0.80 Amps
- Initial Resistance Min: 0.52 Ohms at 23°C
- Initial Resistance Max: 0.86 Ohms at 23°C
- 1 Hour (R1) Post-Trip Resistance: 1.29 Ohms at 23°C
- Max Time to Trip: 2.0 Seconds at 23°C
- Tripped Power Dissipation: 0.55 Watts at 23°C
- Operating/Storage Temperature: -40 °C to +85 °C
- Max Device Surface Temperature in Tripped State: 125 °C
- Passive Aging: +85 °C, 1000 hours ±5 % typical resistance change
- Humidity Aging: +85 °C, 85 % R.H. 1000 hours ±5 % typical resistance change
- Thermal Shock: -40 °C to +85 °C, 10 times ±10 % typical resistance change
- Solvent Resistance: MIL-STD-202, Method 215 No change
- Vibration: MIL-STD-883C, Method 2007.1 No change
- Moisture Sensitivity Level: 1
Buy the MF-R040-2-99 BOURNS PTC Resettable Fuse | myMectronic
Purchase the Bourns MF-R040-2-99 PTC resettable fuse securely and conveniently online.
Buy Now
Frequently Asked Questions
Where can I buy Bourns MFR040299?
You can click on the BUY or RFQ button to purchase MFR040299 from an authorized Bourns distributor.
How do I troubleshoot issues or seek technical support for part MFR040299?
You can download the MFR040299 datasheet or visit the Bourns website for support.
Who is the manufacturer of MFR040299?
Bourns