BTB26-600BRG

Triacs Overview

The BTB26-600BRG is a standard Triac from the BTA26/BTB26 series, manufactured by STMicroelectronics. It features a non-insulated TOP3 package and supports an RMS on-state current of 25 A with a peak surge current of 250 A at 50 Hz. The device has a repetitive peak off-state voltage rating of 600 V. Electrical characteristics include a maximum gate trigger current (IGT) of 50 mA and a maximum holding current (IH) of 75 mA in quadrants I, II, and III. Thermal resistance from junction to case is 0.6 °C/W. Operating junction temperature ranges from -40 °C to +125 °C.

Triacs Feature Summary

• Standard commutation capability across all four quadrants for general-purpose AC switching applications.
• Non-insulated TOP3 package design providing low thermal resistance via clip bonding technology.
• UL 1557 recognized component certification ensuring compliance with safety standards.

Triacs Applications

• On/off control functions in static relays
• Heating regulation systems
• Induction motor starting circuits
• Phase control operations in light dimmers

Triacs Procurement Notes

Verify that the specific part number corresponds to the non-insulated TOP3 package variant rather than the insulated version. Confirm the voltage rating matches the system requirements, as the series includes both 600 V and 800 V options. Ensure the ordering suffix indicates the correct tube delivery mode and sensitivity type. Cross-reference the manufacturer's latest datasheet revision to confirm current production status and any potential updates to mechanical dimensions or electrical limits before finalizing procurement orders.

Triacs Selection Notes

Select this component when a non-insulated TRIAC is required for cost-effective thermal management in mains power applications. The 50 mA gate trigger current suits standard drive circuits without requiring excessive gate power. Consider the 0.6 °C/W junction-to-case thermal resistance for heatsink calculations. Verify that the 600 V blocking voltage is sufficient for the specific line voltage application, noting that higher voltage variants are available within the same series if needed.

Triacs Part Context

This component belongs to the BTA26 and BTB26 series of high-current TRIACs designed for general-purpose mains power AC switching. The series offers both insulated (BTA) and non-insulated (BTB) package options. These devices utilize clip bonding to achieve low thermal resistance, making them suitable for applications requiring robust current handling capabilities in compact form factors.

Triacs Replacement Considerations

Direct substitutes within the same series include the BTA26-600BRG, which shares identical electrical ratings but features an insulated TOP3 package instead of the non-insulated configuration used by the BTB26-600BRG. Other compatible parts in the family include the BTB26-800BRG for higher voltage applications.