BT138-600E/DGQ

Triacs Overview

The BT138-600E/DGQ is a four-quadrant sensitive gate triac manufactured by WeEn Semiconductors. It features a rated repetitive off-state voltage (VDRM) of 600 V and an on-state RMS current (IT(RMS)) of 12 A. The device supports a non-repetitive peak on-state current of 105 A with a maximum on-state voltage of 1.4 V. Gate triggering specifications include a maximum gate trigger voltage (VGT) of 700 mV and a maximum gate trigger current (IGT) of 11 mA. The component operates within a junction temperature range of -40 °C to +125 °C and utilizes a D2PAK surface-mount package.

Triacs Feature Summary

• Sensitive gate architecture enabling direct interfacing with logic level integrated circuits
• Four-quadrant gate triggering capability for reliable switching in AC phase control applications
• High thermal stability supporting operation up to +125 °C junction temperature

Triacs Applications

• General purpose switching and phase control circuits
• Lighting dimmers for AC mains loads
• Solid state relays requiring low gate drive power

Triacs Procurement Notes

Verify the specific suffix DGQ against official manufacturer documentation to confirm the exact physical package type and pinout configuration. Ensure that the ordering code matches the required surface mount variant rather than through-hole alternatives. Cross-reference the part number with the latest product change notifications to confirm material compliance and manufacturing origin details before finalizing procurement orders.

Triacs Selection Notes

Select this component when a surface-mount solution is required for 12 A AC load control. The sensitive gate characteristic allows compatibility with low-power microcontroller outputs without additional buffer drivers. Confirm that the D2PAK thermal dissipation requirements align with the system's heatsinking strategy, as the package relies on board-level thermal management for sustained high-current operation.

Triacs Part Context

This part belongs to the BT138 family of four-quadrant triacs, which are widely used in AC power control applications. The BT138 series distinguishes itself through sensitive gate technology, reducing the necessary gate drive current compared to standard gate devices. This family includes various voltage ratings and package options to accommodate different thermal and spatial constraints in consumer and industrial electronics designs.

Triacs Replacement Considerations

Direct replacements include the BT138-600E in alternative packages such as TO-220AB or TO-220FP. Verify that substitute components maintain the same 12 A RMS current rating and 600 V blocking voltage. Ensure that any replacement also offers sensitive gate characteristics to preserve interface compatibility with existing logic-level drive circuits.