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OptiFuse RS120125 Resettable Fuse

A resettable fuse designed for 120V AC or DC applications, featuring a radial lead configuration. Suitable for overcurrent protection in various electronic circuits, allowing reusability after tripping. This device offers a low hold current, operates within a temperature range of -40°C to 85°C, and handles operation currents up to 2.50A. Its construction includes tin-plated copper leads with flame-retardant epoxy insulation, complying with RoHS standards. The fuse ensures reliable circuit protection by trip currents ranging from 1.25A to 2.50A, with maximum voltages of 120V AC/DC and maximum interrupt voltages up to 135V. Dimensions and specifications support easy integration into industrial and electronic systems.

Authorized Distributors
Part No:RS120-125
Stock:0
Inv Date:06-05-2026
Price: Unit price: $1.14
Buy/RFQ:
Part No:RS120-125
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.7788
Buy/RFQ:
Part No:RS120-125
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.7788
Buy/RFQ:

OptiFuse RS120125 Resettable Fuse Specifications:

  • Voltage Rating: 120V ac/dc, Max. Operating Voltage: 120V ac/dc, Max. Interrupt Voltage: 135V ac/dc
  • Trip Current: 1.25A, 2.50A (varies by model), Hold Current: 1.25A, 2.50A
  • Trip Time: 15-20 seconds at rated current, Resistance: 0.11-0.21 ohms, Power Dissipation: up to 4.44W
  • Operation Temperature Range: -40°C to 85°C, Lead Material: Tin plated copper, Lead Size: 22 AWG, 20 AWG, 24 AWG
  • Soldering Characteristics: MIL-STD-202, method 208E, Insulating Coating: Flame retardant epoxy meet UL-94V-0, Dimensions vary by model
  • Certifications: RoHS compliant, Application: Overcurrent protection in electronics, suitable for industrial devices

Buy the Optifuse RS120125 – Reliable Resettable Fuse for Industrial Applications

Discover the reliability and efficiency of the Optifuse RS120125 resettable fuse today. Designed for 120V applications, it provides dependable overcurrent protection with a radial lead configuration. Its construction features flame-retardant epoxy insulation and tin-plated copper leads, meeting UL-94V-0 standards for safety and durability. With a trip current of 1.25A and a maximum voltage of 120V AC/DC, it ensures safe circuit operation across a wide temperature range from -40°C to 85°C. Ideal for industrial and electronic applications, this fuse offers quick reset capability, reducing downtime and maintenance costs. Purchase online now for premium circuit protection that guarantees both safety and performance over time.

Get Optifuse RS120125 today—built for precision and long-lasting durability in circuit protection.

Frequently Asked Questions

Where can I buy OptiFuse RS120125?

You can click on the BUY or RFQ button to purchase RS120125 from an authorized OptiFuse distributor.

How do I troubleshoot issues or seek technical support for part RS120125?

You can download the RS120125 datasheet or visit the OptiFuse website for support.

Who is the manufacturer of RS120125?

OptiFuse

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