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Littelfuse SMD100F2 PolySwitch Overcurrent Protector

The SMD100F-2 is a surface-mount, resettable PolySwitch device designed to provide overcurrent protection. Its compact size conserves PCB space and reduces costs, while its higher voltage rating enables use in newer applications. The device features a hold current of 1.1A, a trip current of 2.2A, and offers fast response times with low resistance. It has a 100% matte tin finish with a nickel underplate, making it suitable for high-volume electronic assembly. Its applications include industrial equipment, computers and peripherals, consumer electronics, communication and networking devices, automotive systems, and portable devices.

Authorized Distributors
Source:Newark
Part No:SMD100F-2
Stock:975
Inv Date:05-28-2026
Price: Unit price: $0.577
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Source:DigiKey
Part No:SMD100F-2
Stock:116971
Inv Date:05-28-2026
Price: Unit price: $0.64
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Part No:SMD100F-2
Stock:48782
Inv Date:05-29-2026
Price: Unit price: $0.53
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Part No:SMD100F-2
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.23
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Part No:SMD100F-2
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.26
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Source:Arrow EU
Part No:SMD100F-2
Stock:122000
Inv Date:05-29-2026
Price: N/A
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Part No:SMD100F-2
Stock:939
Inv Date:05-29-2026
Price: N/A
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Littelfuse SMD100F2 PolySwitch Overcurrent Protector Specifications:

  • Physical Size: 3.00 mm x 4.80 mm
  • Thickness: 1.50 mm
  • Hold Current: 1.1A
  • Trip Current: 2.2A
  • Voltage Rating: 125V
  • Resistance: Low resistance for efficient operation
  • Finish: 100% matte tin with nickel underplate
  • Maximum Operating Temperature: 85°C
  • Soldering: Compatible with reflow soldering per IEC-STD-68-2-20
  • Environmental: RoHS and ELV compliant
  • Application Environment: Suitable for high-volume manufacturing, automotive, industrial, and consumer electronics

Buy the Littelfuse Series SMD100F: Overcurrent Protection Device

Purchase the Littelfuse PolySwitch SMD100F-2 online today—engineered for high reliability and fast response in overcurrent protection applications across industrial, automotive, consumer electronics, and communication devices. Its compact size allows for efficient PCB design, reducing both cost and space. Suitable for high-volume assembly, this device ensures safety and compliance with RoHS and ELV standards. Ensure your circuits are protected with a proven resettable solution that offers quick trip times, low resistance, and versatile application support. Order now for reliable protection and seamless integration into your manufacturing process.

Get Littelfuse SMD100F-2 today—built for precision and long-lasting durability in electronic protection.

Frequently Asked Questions

Where can I buy Littelfuse SMD100F2?

You can click on the BUY or RFQ button to purchase SMD100F2 from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part SMD100F2?

You can download the SMD100F2 datasheet or visit the Littelfuse website for support.

Who is the manufacturer of SMD100F2?

Littelfuse

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