BT137-800 Four Quadrant TRIAC for Switching

BT137-800 is a four-quadrant TRIAC rated for 800 V repetitive peak off-state voltage and 8 A RMS on-state current. It is intended for bidirectional switching and phase-control applications, including general-purpose switching and motor control. The device uses a TO-220AB package for through-hole mounting. For repair work, confirm gate-drive conditions, load current, thermal management, and board connections against the original circuit before installation. BT137-800 provides the specified switching function where an existing design calls for this TRIAC and its electrical ratings. Keeping the load, drive, and cooling conditions aligned with the original design helps prevent an unsuitable substitution from a related device. Check circuit protection requirements before returning equipment to service. Request a quote for BT137-800.