BT137B-800,118

Triacs Overview

The BT137B-800,118 is a bidirectional triac manufactured by WeEn Semiconductors, designed for surface-mount applications in the D2PAK-3 package. 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 peak 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 30 mA. The component operates within a temperature range up to +125 C and is supplied in tape and reel formats.

Triacs Feature Summary

• Surface-mount construction utilizing the D2PAK-3 package for automated assembly integration
• Bidirectional switching capability suitable for AC power control circuits
• High thermal stability supporting operation up to +125 C junction temperature

Triacs Applications

• Lighting dimmers and intensity control systems
• Solid-state relays for AC load switching
• Motor speed control circuits for small appliances

Triacs Procurement Notes

Verify the complete part number including the suffix ,118 to ensure correct packaging configuration. Confirm RoHS and REACH compliance status through official manufacturer documentation prior to integration. Validate that the D2PAK-3 footprint matches the target PCB design specifications. Ensure sourcing channels provide authentic components from authorized distributors to guarantee performance reliability.

Triacs Selection Notes

Select this component when an 8 A RMS current rating and 800 V blocking voltage are required for surface-mount designs. Compare gate trigger current requirements against available drive circuit capabilities. Consider the D2PAK-3 thermal dissipation characteristics relative to the expected operating environment. Evaluate alternative packages if through-hole mounting is preferred for mechanical robustness.

Triacs Part Context

This triac belongs to the BT137 series of high-current thyristors produced by WeEn Semiconductors. The series offers various voltage ratings and package options to accommodate diverse industrial and consumer electronics applications. The BT137B-800 variant specifically targets medium-power AC switching tasks requiring reliable surface-mount integration.

Triacs Replacement Considerations

Cross-reference with other BT137 series variants or equivalent 8 A/800 V triacs in D2PAK packages. Verify pinout compatibility and thermal resistance values before substitution. Check datasheet differences regarding gate sensitivity and holding current to ensure circuit functionality remains intact.