Semiconductor Fuse Overview
The DNR10-J1M is a fast-acting protective fuse link designed specifically for semiconductor equipment. Part of the DNR series, it has a rated voltage of AC 690V / DC 500V and current range from 4A to 32A. These fuse links safely interrupt excessive currents to protect inverters, frequency converters, rectifiers, motor drives, battery systems and other power electronics. Constructed with a UL94 V-0 flame-retardant ceramic body, the DNR10-J1M meets international safety standards and provides reliable performance under harsh conditions.
Semiconductor Fuse Features
Semiconductor Fuse FAQs
1、What does a fuse link do?
A semiconductor fuse link like the DNR10-J1M protects equipment by opening the circuit under overcurrent conditions. When a fault occurs, the internal element melts, providing short-circuit and backup protection to prevent damage to converters, motors and batteries.
2、How do you choose the right fuse link?
Choose a fuse based on your circuit’s operating voltage (AC or DC) and normal running current. The fuse’s rated current should exceed the normal load but be low enough to interrupt fault currents. Ensure the fuse’s breaking capacity exceeds potential short-circuit current. Also consider environmental factors (ambient temperature, mounting) and verify applicable standards and certifications.
3、Is there a difference between AC and DC fuses?
Yes. AC fuses benefit from the natural zero-crossing of the waveform to quench arcs, whereas DC fuses must extinguish a continuous arc. For example, the DNR10-J1M is rated AC 690V / DC 500V, reflecting the need for different voltage handling. Always use a fuse link with the correct AC or DC rating for your system.
