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Bourns 0.4 A 40A Resettable Fuse 60V Radial Leaded MFR Series MF-R040
Specifications
| Country of Origin | India |
|---|---|
| Voltage | 60V |
| Brand | Bourns |
| Height | 13.7mm |
| Length | 7.4mm |
| Model | MF-R040 |
| Width | 3.1mm |
| Current Rating | 40A |
| Series | MFR |
| Maximum Operating Temperature | 85°C |
| Minimum Operating Temperature | -40°C |
| Trip Current | 800mA |
| Power Dissipation | 0.55W |
| Standards/Approvals | RoHS, UL |
| Lead Diameter | 0.51mm |
| Time to Trip | 3.8s |
| Hold Current | 0.4A |
| Minimum Resistance | 0.52Ω |
| Maximum Resistance | 1.29Ω |
| Lead Orientation | Radial |
Key Features
- Features a trip current of 800mA for responsive overload protection.
- Designed for a voltage rating of 60 volts to suit various applications.
- Rated for a hold current of 0.4A and current rating of 40A for high reliability.
- Compact dimensions of 7.4mm length, 13.7mm height, and 3.1mm width enable space-efficient installation.
- Constructed with a flame retardant epoxy polymer meeting UL 94V-0 standard.
- Radial lead orientation with 0.51mm lead diameter ensures easy PCB mounting.
- Maintains low resistance of 0.52Ω minimum and maximum resistance of 1.29Ω for effective circuit protection.
- Operates between -40°C and 85°C, suitable for industrial environments.
Product Description
Bourns MF-R040 is a high-quality 0.4 amp resettable fuse designed for electrical circuit protection up to 60 volts. This radial leaded device offers automatic resetting after fault conditions and is ideal for safeguarding sensitive components in various applications. Its compact size with dimensions of 7.4mm length, 13.7mm height, and 3.1mm width allows for efficient PCB space utilization.
This fuse rapidly switches from low resistance to high resistance under overload or short circuit, protecting circuits effectively while providing maintenance-free operation. It has a hold current rating of 0.4A and a maximum current rating of 40A, ensuring reliable protection in demanding environments.
The fuse is made with a cured, flame retardant epoxy polymer insulating material complying with UL 94V-0 standards, enhancing safety. Its radial lead orientation with 0.51mm leads simplifies PCB mounting. Operational temperature ranges from -40°C to 85°C makes it suitable for industrial, automotive, medical, and instrumentation control uses.
With a trip time of 3.8 seconds and power dissipation of 0.55 watts, the device balances protection and energy efficiency. It is RoHS compliant and UL approved for assured quality and environmental standards.
Typical applications include security systems, power supplies, transformers, power switching devices, automotive, medical equipment, instrumentation, control systems, computers, peripherals, audio visual, and telecommunications equipment.
Features a trip current of 800mA for responsive overload protection. Compact, radial leaded fuse for easy PCB integration. Flame retardant epoxy polymer ensuring UL 94V-0 compliance. Operating temperature range from -40°C to 85°C for industrial reliability.
Automatic resettable protection suitable for multiple cycles. Power dissipation of 0.55W for safe operation under load. RoHS and UL approvals ensuring compliance and quality. Suitable for automotive, medical, instrumentation, and telecommunications.
Small size designed for space saving in electronic assemblies. Explore more Resettable Fuses like the MF-R040 at EnvMart, your trusted source for industrial electrical components.
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Frequently Asked Questions
The Bourns MF-R040 resettable fuse has a current rating of 40A.
The trip current for the MF-R040 is 800mA, providing responsive overload protection.
This fuse has dimensions of 7.4mm in length, 13.7mm in height, and 3.1mm in width.
The voltage rating of the MF-R040 is 60V, suitable for various applications.
The MF-R040 operates within a temperature range of -40°C to 85°C.
This model features a radial lead orientation with a lead diameter of 0.51mm, facilitating easy PCB mounting.
The minimum resistance is 0.52Ω and the maximum resistance is 1.29Ω, ensuring effective circuit protection.
The time to trip for the MF-R040 is 3.8 seconds under overload conditions.
The MF-R040 is constructed with a flame retardant epoxy polymer that complies with UL 94V-0 standards.
Yes, it is RoHS compliant and UL approved, ensuring adherence to quality and environmental standards.
This resettable fuse is suitable for applications in security systems, power supplies, automotive, medical equipment, and telecommunications.
The power dissipation rating for this model is 0.55W, allowing for safe operation under load.
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