BT138-600/DG,127

Triacs Overview

The BT138-600/DG,127 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 RMS on-state 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 22 mA. The component operates within a junction temperature range up to +125 °C and is housed in a TO-220AB-3 through-hole package.

Triacs Feature Summary

• Four-quadrant sensitivity ensures reliable triggering across all gate polarities and main terminal voltages.
• Sensitive gate architecture allows direct interfacing with low-power logic circuits and microcontrollers.
• Passivated chip construction provides robust protection against mechanical stress and environmental factors.

Triacs Applications

• General purpose switching applications
• Phase control circuits
• Lighting dimmers for AC mains loads

Triacs Procurement Notes

Verify the complete part number including the suffix ,127 to confirm reel packaging and specific manufacturing lot details. Confirm RoHS compliance status via the official datasheet as regulatory requirements may vary by production batch. Ensure the ordering quantity aligns with the standard factory pack size of 1000 units to avoid partial reel handling issues during assembly.

Triacs Selection Notes

Select this component when a 12 A RMS current rating at 600 V blocking voltage is required for AC load control. The TO-220AB-3 package is suitable for applications requiring heatsinking or higher thermal dissipation compared to surface-mount alternatives. Verify that the gate trigger current of 22 mA matches the output capability of the driving circuitry to ensure proper turn-on under all operating conditions.

Triacs Part Context

This triac belongs to the BT138 family of four-quadrant sensitive gate thyristors. It shares functional similarities with the BT136 series but offers distinct electrical characteristics tailored for specific power levels. The DG suffix typically indicates specific lead forming or packaging variations within the manufacturer's through-hole product line, distinguishing it from standard tape-and-reel configurations.

Triacs Replacement Considerations

Cross-reference with BT138-600E,127 for identical electrical performance in different packaging or sourcing channels. The BT136-600 series serves as a common alternative but requires verification of gate sensitivity differences. Ensure any substitute maintains the TO-220AB-3 footprint and meets the 12 A IT(RMS) requirement.