BT139B-600,118

Triacs Overview

The BT139B-600,118 is a planar passivated four-quadrant triac manufactured by WeEn Semiconductors. It is housed in a D2PAK (TO-263) surface-mount package designed for high bidirectional transient and blocking voltage capability. The device supports an RMS on-state current of 16 A with a rated repetitive peak off-state voltage of 600 V. Key electrical parameters include a maximum non-repetitive surge current of 155 A, a holding current of 45 mA, and a gate trigger current of 22 mA. It operates within a junction temperature range up to +125°C.

Triacs Feature Summary

• Planar passivated construction for enhanced reliability
• High bidirectional transient and blocking voltage capability
• Surface-mountable plastic package optimized for thermal cycling performance

Triacs Applications

• Motor control systems
• Industrial lighting applications
• Domestic lighting controls
• Heating element regulation
• Static switching circuits

Triacs Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact binning or revision levels. Ensure the component matches the required D2PAK footprint and pinout configuration for the target PCB design. Cross-reference the part number with the latest datasheet to validate compliance with RoHS and REACH standards before finalizing procurement specifications.

Triacs Selection Notes

Select this component when a 16 A RMS current rating and 600 V blocking voltage are required in a surface-mount form factor. Compare the 155 A surge current capacity against circuit inrush requirements. Evaluate the thermal resistance of the D2PAK package relative to the application's heat dissipation needs to ensure operation remains within the specified temperature limits.

Triacs Part Context

This triac belongs to the BT139 series, which provides robust performance for general-purpose AC switching. The BT139B variant specifically denotes the 600 V voltage class within this family. It serves as a surface-mount alternative to through-hole equivalents, maintaining similar electrical characteristics while offering improved mounting density for modern electronic assemblies.

Triacs Replacement Considerations

Direct replacements include the BT139B-600E,118 and other variants within the BT139 series sharing identical 16 A/600 V ratings and D2PAK packaging. Verify that substitute parts maintain the same gate trigger current specifications and thermal performance metrics to ensure circuit compatibility.