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OptiFuse RS120300 Resettable Fuse

The RS120-300 resettable fuse is ideal for protecting electronic circuits in 120V AC/DC power systems. It features a radial lead design with high current handling capacity and a quick reset mechanism. Made with tin-plated copper leads and flame-retardant epoxy coating, this PTC fuse ensures reliable overcurrent protection while enduring temperatures from -40°C to 85°C. Its compact dimensions and compliant standards make it suitable for various electronic applications, ensuring safety and durability against surges and faults.

Authorized Distributors
Source:DigiKey
Part No:RS120-300
Stock:2665
Inv Date:06-05-2026
Price: Unit price: $3.3
Buy/RFQ:
Part No:RS120-300
Stock:0
Inv Date:06-05-2026
Price: Unit price: $3.31
Buy/RFQ:
Part No:RS120-300
Stock:0
Inv Date:06-05-2026
Price: Unit price: $1.70909
Buy/RFQ:

OptiFuse RS120300 Resettable Fuse Specifications:

  • Maximum Operating Voltage: 120V AC/DC
  • Maximum Interrupt Voltage: 135V AC
  • Operation Current: 100mA to 3.75A
  • Trip Current: 0.10A to 3.75A
  • Maximum Power Dissipation: 4.80W
  • Resistance Tolerance: ±20%
  • Lead Material: Tin plated copper, 22 AWG, 20 AWG, 24 AWG
  • Soldering Characteristics: MIL-STD-202, method 208E
  • Insulating Coating: Flame retardant epoxy, UL-94V-0
  • Temperature Range: -40°C to 85°C
  • Physical Dimensions: Lead diameter 0.51 mm to 0.81 mm, length 13 mm, width 19 mm

Buy the Buy Optifuse RS120300 Resettable Fuse Part Number RS120300 Online

Order the Optifuse RS120300 resettable fuse online for reliable overcurrent protection in your electronic devices. With its radial lead configuration, it offers quick reset capability after faults and ensures safety across a wide temperature range. Constructed with high-quality tin-plated copper leads and flame-retardant epoxy coating, this fuse complies with industry standards to deliver durable, efficient performance. Perfect for protecting circuits in 120V AC/DC applications, it’s a dependable choice for engineers and repair technicians seeking enhanced safety and longevity.

Get Optifuse RS120300 today—built for precision and long-lasting durability in electronic circuit protection.

Frequently Asked Questions

Where can I buy OptiFuse RS120300?

You can click on the BUY or RFQ button to purchase RS120300 from an authorized OptiFuse distributor.

How do I troubleshoot issues or seek technical support for part RS120300?

You can download the RS120300 datasheet or visit the OptiFuse website for support.

Who is the manufacturer of RS120300?

OptiFuse

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