BT137S-800E,118

Triacs Overview

The BT137S-800E,118 is a four-quadrant logic level triac manufactured by WeEn Semiconductors. It features an RMS on-state current of 8 A and a non-repetitive peak on-state current of 71 A. The device supports a rated repetitive off-state voltage (VDRM) of 800 V with a maximum off-state leakage current of 100 uA at VDRM. Key electrical parameters include an on-state voltage of 1.3 V, a maximum holding current of 20 mA, a gate trigger voltage of 700 mV, and a gate trigger current of 11 mA. The component operates within a maximum junction temperature of +125 C and is housed in a DPAK-3 (TO-252-3) surface-mount package.

Triacs Feature Summary

• Four-quadrant logic level triggering capability for simplified gate drive circuits
• Sensitive gate design enabling direct interface with low-power control logic
• Robust thermal performance supporting high-temperature operation up to 125 C

Triacs Applications

• Lighting control systems requiring precise phase-angle regulation
• Solid-state relays for industrial switching applications
• Motor speed control circuits for small AC motors

Triacs Procurement Notes

Verify the complete part number including the suffix ,118 to ensure correct tape-and-reel packaging configuration. Confirm RoHS compliance status through official datasheets or manufacturer declarations prior to integration. Validate that the DPAK-3 package dimensions match the target PCB footprint requirements. Check for any recent Product Change Notifications regarding material or process updates.

Triacs Selection Notes

Select this component when an 8 A RMS current rating and 800 V blocking voltage are required in a compact surface-mount form factor. The logic-level sensitivity makes it suitable for microcontroller-driven applications without additional buffer stages. Ensure adequate heatsinking is designed for the DPAK-3 package to maintain junction temperatures within the specified +125 C limit under continuous load conditions.

Triacs Part Context

This device belongs to the BT137 series of four-quadrant triacs from WeEn Semiconductors. The series offers various voltage ratings and package options, with the S variant denoting the DPAK-3 surface-mount construction. The BT137S-800E represents the 800 V version within this specific package line, providing a balance of current handling and voltage blocking for general-purpose AC power control.

Triacs Replacement Considerations

Cross-reference with BT137S-800G for equivalent electrical specifications in alternative supply chains. Verify pinout compatibility and thermal resistance characteristics before substituting. Ensure the replacement part meets the same logic-level gate trigger requirements.