IC Phoenix logo

Home ›  M  › M129 > MF-SM050-2

MF-SM050-2 from

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

MF-SM050-2

Manufacturer: BOURNS

PTC Resettable Fuses

Partnumber Manufacturer Quantity Availability
MF-SM050-2,MFSM0502 BOURNS 6190 In Stock

Description and Introduction

PTC Resettable Fuses **Enhance Circuit Protection with the MF-SM050-2 Resettable Fuse**  

In today’s fast-evolving electronics industry, reliable circuit protection is essential to safeguard sensitive components from overcurrent events. The **MF-SM050-2** resettable fuse, also known as a polymeric positive temperature coefficient (PPTC) device, offers an efficient and maintenance-free solution for applications requiring dependable overcurrent protection.  

Designed for low-voltage circuits, the **MF-SM050-2** features a hold current of 0.5A and a trip current of 1A, making it ideal for consumer electronics, power supplies, and battery-powered devices. Unlike traditional fuses that require replacement after a fault, this PPTC device automatically resets once the fault condition is removed, reducing downtime and maintenance costs.  

With a compact form factor and a fast response time, the **MF-SM050-2** ensures minimal disruption to circuit operation while providing robust protection against short circuits and excessive current surges. Its stable performance across a wide temperature range (-40°C to +85°C) makes it suitable for demanding environments, including automotive, industrial, and IoT applications.  

Key advantages of the **MF-SM050-2** include:  
- **Self-recovery** – Eliminates the need for manual replacement after tripping.  
- **Precision protection** – Reliably trips at specified current levels to prevent damage.  
- **Space-saving design** – Compact footprint for integration into densely packed PCBs.  
- **Long-term reliability** – Maintains consistent performance over multiple fault cycles.  

For engineers and designers seeking a cost-effective and efficient overcurrent protection solution, the **MF-SM050-2** resettable fuse delivers both performance and peace of mind. Its versatility and durability make it a preferred choice for modern electronic systems where safety and reliability are paramount.  

By integrating the **MF-SM050-2** into your designs, you can enhance circuit resilience while simplifying maintenance—ensuring uninterrupted operation in critical applications.

Application Scenarios & Design Considerations

PTC Resettable Fuses

Alternative Part Number

  • 0ZCG0050BF2B --: Resettable PTC fuse with 0.5A hold current and 60V rating, functionally equivalent to the MF-SM050-2 in most circuit protection applications.
  • RUEF500 --: Radial-leaded resettable PTC with 5A hold current; suitable where higher current capacity is acceptable and a through-hole package can be used.
  • MF-R050 --: Resettable PTC fuse with 0.5A hold current from a different series, offering similar overcurrent protection characteristics.
  • 1812L050/60MR --: 1812-size polymer PTC with 0.5A hold current and 60V rating, matches the original's footprint and electrical characteristics.
  • PTS1812-050-60 --: 1812 SMD resettable fuse rated 0.5A hold and 60V, suitable drop-in replacement for the Bourns MF-SM050-2.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips