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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 | FMR-R-E-1.25A |
| Description | Micro Fuse; 1.25 A; Fast; Square; Long Lead; IEC; 250 VAC |
| Datasheet | Download Datasheet |
The OptiFuse FMR-R-E-1.25A is a 1.25 A fast-acting square micro fuse with long radial leads, rated 250 VAC.
A fast-acting fuse opens quickly on an overload, for resistive and lightly loaded circuits with little switch-on surge. It mounts through-hole on a 5.08 mm (0.20 in) lead spacing, with 18.8 mm (0.74 in) leads.
Breaking capacity: 35 A or 10 x In (whichever is greater); 100 A @ 250 VAC (PSE). Opening times, as a percentage of the rated current: 210%: max. 30 min; 275%: 10 ms to 3 s; 400%: 3 ms to 300 ms; 1000%: max. 20 ms. Typical melting I²t 0.5169 A²s. It operates from -55 to +125 °C.
Construction: body 8.5 x 4.3 mm; thermoplastic, UL 94V-0 body; leads tin-lead plated alloy.
Approvals: VDE, cURus Recognized, PSE, SEMKO, CQC. Designed to meet IEC specifications.
| Category | |
| Manufacturer | OptiFuse |
| Model | FMR-R-E |
| Current Rating (A) | 1.25 |
| Size | 8.5 x 4.3 mm |
| Speed | Fast-Acting |
| Voltage Rating | 250 VAC |
| Breaking Capacity | 35 A or 10 x In (whichever is greater); 100 A @ 250 VAC (PSE) |
| Body Material | Thermoplastic, UL 94V-0 |
| Mounting Style | Radial Lead (Through-Hole) |
| Body Shape | Square |
| Lead Length | 18.8 mm (0.74 in) |
| Lead Spacing | 5.08 mm (0.20 in) |
| Packaging | Bulk |
| Approvals | VDE, cURus Recognized, PSE, SEMKO, CQC |
| Standards | Designed to meet IEC specifications |
| Opening Time | 210%: max. 30 min; 275%: 10 ms to 3 s; 400%: 3 ms to 300 ms; 1000%: max. 20 ms |
| Melting I²t (A²s) | 0.5169 |
| Operating Temperature (°C) | -55 to +125 |
| Lead Material | Tin-lead plated alloy |