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Littelfuse RUSBF120 Radial-leaded Circuit Protector

The RUSBF120 is a radial-leaded, resettable PolySwitch device designed for overcurrent protection in electronic circuits. It features a low resistance and fast trip time, making it suitable for power management and circuit protection applications like USB ports, communication equipment, and consumer electronics. The device operates reliably within a temperature range of -40°C to 85°C, with RoHS and ELV compliance, ensuring environmental safety. Its durable epoxy encapsulation ensures long-term thermal stability and mechanical integrity under various operating conditions.

Authorized Distributors
Source:DigiKey
Part No:RUSBF120
Stock:490
Inv Date:06-05-2026
Price: Unit price: $0.63
Buy/RFQ:
Part No:RUSBF120
Stock:425
Inv Date:06-06-2026
Price: Unit price: $0.52
Buy/RFQ:
Part No:RUSBF120
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.32
Buy/RFQ:

Littelfuse RUSBF120 Radial-leaded Circuit Protector Specifications:

  • Voltage Rating: 16V
  • Hold Current: 1.20A
  • Trip Current: 2.43A
  • Maximum Operating Voltage: 16V
  • Maximum Continuous Current: 1.93A
  • Maximum Power Dissipation: 0.036W
  • Resistance (initial): 0.060Ω
  • Resistance (post-trip): >10Ω
  • Lead Material: Tin-plated copper, 0.205mm2 (24AWG)
  • Solderability: Per ANSI/J-STD-002 Category 3
  • Solder Heat Withstand: 10 seconds at 260°C ±5°C
  • Operation Temperature Range: -40°C to 85°C
  • Dimensions: Length 43mm, Width 58mm, Lead Spacing 25.4mm
  • Environmental Resistance: Passive aging, humidity, thermal shock, solvent resistant
  • Compliance: RoHS and ELV
  • Agency Recognition: UL, CSA, TUV

Buy the Buy TE Circuit Protection RUSBF120 Part Number 120 in Online Store

Purchase the TE RUSBF120 Radial-leaded PolySwitch device online today. Designed for reliable circuit protection, it offers low resistance, fast trip time, and environmental safety. This RoHS and ELV compliant component is ideal for USB ports, consumer electronics, and communication devices. With a maximum voltage of 16V and a hold current of 1.20A, it ensures your electronics are protected against overcurrent faults efficiently. Enjoy fast delivery and secure checkout when you buy this high-quality circuit protection solution online.

Order your TE SeriesRUSBF120 high-reliability circuit protection device today and safeguard your electronics with fast trip and RoHS compliant safety features.

Frequently Asked Questions

Where can I buy Littelfuse RUSBF120?

You can click on the BUY or RFQ button to purchase RUSBF120 from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part RUSBF120?

You can download the RUSBF120 datasheet or visit the Littelfuse website for support.

Who is the manufacturer of RUSBF120?

Littelfuse

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