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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | OptiFuse |
| Manufacturer Product Number | RS120-300 |
| Description | PTC Fuse; 3.00 A; 120 VAC/DC |
| Datasheet | Download Datasheet |
The OptiFuse RS120-300 is a 3 A hold radial-lead resettable PTC fuse, rated 120 VAC/DC maximum.
A PTC fuse carries its hold current indefinitely; on an overcurrent it heats, its resistance rises sharply and it limits the current to a trickle, then resets on its own once the fault is removed and power is cycled. This one always trips at 6 A, in max. 19.8 s at 5 x IH.
It withstands a fault current of up to 17 A at rated voltage and interrupts up to 135 V. Resistance: minimum 0.04 Ω, 0.10 Ω maximum one hour after tripping. Tripped, it dissipates typically 4.56 W. It operates from -40 to +85 °C.
Construction: outline 22.5 W x 30.0 H x 4.1 T mm (max.); lead spacing 10.2 mm; leads 20 AWG (0.81 mm); tin plated copper.
| Category | |
| Manufacturer | OptiFuse |
| Model | RS120 |