BT136-600E Triac 600V 4A Through Hole TO-220

BT136-600E 600V 4A Sensitive Gate Triac in TO-220 Package

The BT136-600E is a bidirectional triac switch designed for AC power control. It functions like two SCRs back-to-back, allowing current to flow in both directions once a gate pulse is applied. Structurally, it has three terminals (MT1, MT2 and Gate) and comes in a TO-220 through-hole package, which provides heat dissipation for high-voltage switching.

Its sensitive gate means it can be driven by low-current logic signals, so a small trigger current turns it on. Once triggered, the triac latches on and conducts AC until the current falls below its holding level. The BT136-600E is planar passivated for high-voltage ruggedness and exhibits a low holding current, making it stable under light-load conditions.

In context, this device is used wherever robust AC switching or phase control is needed (e.g. motor speed or light dimming), providing a compact solution for controlling AC loads with digital or analog driving circuits.

Features:

• Direct triggering from low power drivers and logic ICs.
• High blocking voltage capability.
• Low holding current for low current loads and lowest EMI at commutation.
• Planar passivated for voltage ruggedness and reliability.
• Sensitive gate.
• Triggering in all four quadrants.

Pin Configuration:

 Specifications: