Littelfuse PolySwitch RUEF Series PPTC Resettable Fuse 30V 2.5A 5A

The Littelfuse PolySwitch RUEF Series PPTC Resettable Fuse is a radial-leaded resettable fuse rated at 30 V, with a 2.50 A hold current and a 5.00 A trip current, designed for overcurrent protection in electronic circuits.

Overview

This PPTC (Polymer Positive Temperature Coefficient) device automatically restores the circuit once the fault condition is cleared and the device cools down, removing the need for manual replacement. It has a compact rectangular form with 24AWG leads and 5.8 mm lead spacing, which suits high-volume automated electronics assembly processes. The body is constructed from cured, flame-retardant epoxy polymers that meet the UL 94V-0 standard for insulating materials.

Key Specifications

• Hold Current (IH): 2.50 A
• Trip Current (IT): 5.00 A
• Maximum Voltage (Vmax): 30 VDC / 30 VAC RMS
• Maximum Interrupt Current (Imax): 100 A DC / 70 A AC RMS
• Typical Power Dissipation (PD): 1.20 W
• Maximum Time to Trip: 10.3 seconds at 12.50 A
• Resistance Range (R): 0.020 to 0.040 ohms
• Operating Temperature Range: -40°C to +85°C
• Dimensions (W x D x H): 3.3 x 1.5 x 4.3
• Weight: 0.444 gm

Applications

The fuse is suited to protecting components in satellite video receivers, industrial control systems, transformers, computer motherboards, modems, USB hubs, ports and peripherals, IEEE 1394 ports, CD-ROM drives, gaming consoles, battery packs, telephones, fax machines, analogue and digital line cards, and printers.

Choose the Littelfuse PolySwitch RUEF Series PPTC Resettable Fuse where a resettable overcurrent protection device with a 30 V rating and 2.50 A hold current is required.