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Littelfuse 0.5 A Resettable Fuse 60V PolySwitch Series SMD050F-2
Specifications
| Country of Origin | China |
|---|---|
| Voltage | 60V |
| Brand | Littelfuse |
| Height | 3.18mm |
| Length | 7.98mm |
| Model | SMD050F-2 |
| Width | 5.44mm |
| Series | PolySwitch |
| Maximum Operating Temperature | 85°C |
| Trip Current | 1A |
| Power Dissipation | 1.7W |
| Terminal Material | Tin Plated Metal |
| Time to Trip | 4s |
| Hold Current | 0.5A |
| Minimum Resistance | 0.35Ω |
| Maximum Resistance | 1.4Ω |
| • SMD - Hold current 0.3 - 1.25A | 7555 (metric) 2920 (Imperial) |
| • SMD2 - Hold current 1.5 - 2.5A | 8763 (metric) 3425 (Imperial) |
Key Features
- A compact PolySwitch resettable fuse designed for surface mount technology applications.
- Features a trip current of 1A with a hold current of 0.5A providing reliable circuit protection.
- Operates at a maximum temperature of 85°C with a quick trip time of approximately 4 seconds.
- Constructed with tin plated metal terminals and compact dimensions of 7.98mm length, 5.44mm width, and 3.18mm height.
- Low resistance range between 0.35Ω minimum and 1.4Ω maximum for minimal power loss.
- Maintenance-free automatic reset functionality with thousands of cycles for long-lasting protection.
- Ideal for use in security systems, power supplies, transformers, automotive, medical equipment, and telecommunications.
- Manufactured in China with PolySwitch SMD Series by Littelfuse.
Product Description
Littelfuse SMD050F-2 is a 0.5 A resettable fuse designed to protect electrical and electronic circuits from excessive current flow. This compact device is part of the PolySwitch SMD Series, suitable for surface mount technology (SMT) applications and is ideal for overcurrent protection in sensitive circuits.
It has a trip current rating of 1A and holds 0.5A current under normal operating conditions, offering responsive protection with a trip time of approximately 4 seconds. The device operates reliably at temperatures up to 85°C and dissipates power up to 1.7W. Its physical dimensions are 7.98mm in length, 5.44mm in width, and 3.18mm in height, with tin-plated metal terminals ensuring excellent conductivity and solderability.
This resettable fuse automatically resets itself after fault conditions clear, delivering thousands of maintenance-free protection cycles without the need for replacement fuse holders, facilitating easy integration into compact electronic assemblies.
Typical applications include security systems, power supplies, transformers, power switching devices, automotive and medical equipment, instrumentation and control, computers, peripherals, audiovisual and telecommunications devices.
A compact PolySwitch resettable fuse designed for surface mount technology applications. Trip current of 1A with hold current of 0.5A ensuring precise protection. Maintains operation up to 85°C and dissipates 1.7W power.
Small footprint with dimensions 7.98mm × 5.44mm × 3.18mm and tin-plated metal terminals. Resistance from 0.35Ω to 1.4Ω for efficient current limiting. Automatic resettable functionality eliminates need for fuse replacement.
Suitable for industrial, automotive, medical, and telecommunications applications. Manufactured in China under Littelfuse PolySwitch SMD Series.
This Littelfuse resettable fuse offers reliable circuit protection in compact SMT form factor, ideal for use in industrial automation and electronics manufacturing. Explore more Resettable Fuses and circuit protection devices in the Electronics & Electricals category at EnvMart.
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Frequently Asked Questions
The trip current rating of this resettable fuse is 1A.
The hold current for this model is 0.5A under normal operating conditions.
This resettable fuse has dimensions of 7.98mm in length, 5.44mm in width, and 3.18mm in height.
The maximum operating temperature for this model is 85°C.
The time to trip for this resettable fuse is approximately 4 seconds.
The power dissipation rating of the SMD050F-2 is 1.7W.
It features tin-plated metal terminals for excellent conductivity and solderability.
The resistance range for this model is between 0.35Ω minimum and 1.4Ω maximum.
This resettable fuse is suitable for applications such as security systems, power supplies, transformers, automotive, medical equipment, and telecommunications.
Yes, this model features automatic reset functionality, providing maintenance-free operation with thousands of cycles.
This resettable fuse is manufactured in China.
The SMD050F-2 belongs to the PolySwitch series by Littelfuse.
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