BTA26-800CWRG

Triacs Overview

The BTA26-800CWRG is a high-current Triac from STMicroelectronics, rated for 25 A RMS on-state current and an 800 V repetitive peak off-state voltage. It utilizes the TOP3 insulated package, providing a 2500 VRMS insulation rating between the tab and terminals. The device features a maximum gate trigger current of 35 mA and supports snubberless operation in three quadrants. Key electrical parameters include a non-repetitive surge peak on-state current of 260 A at 60 Hz, a junction-to-case thermal resistance of 0.9 °C/W, and an operating junction temperature range from -40 °C to +125 °C.

Triacs Feature Summary

• TOP3 insulated package with 2500 VRMS isolation capability
• Snubberless design enabling high commutation performance
• UL 1557 recognized component certification

Triacs Applications

• Static relay on/off switching functions
• Heating regulation systems
• Induction motor starting circuits
• Light dimmer phase control operations
• Motor speed controller applications

Triacs Procurement Notes

Verify the specific ordering code against the manufacturer's official datasheet to ensure correct configuration. Confirm that the selected variant matches the required voltage rating, gate trigger current specifications, and package insulation type before finalizing procurement orders.

Triacs Selection Notes

Select this component when high current handling and electrical isolation are required in AC power switching designs. Ensure the application circuit accommodates the specified 35 mA gate trigger current and verify that the thermal management strategy aligns with the provided junction-to-case thermal resistance values.

Triacs Part Context

This part belongs to the BTA26 series of general-purpose AC switches manufactured by STMicroelectronics. The series includes both insulated (BTA) and non-insulated (BTB) variants within the TOP3 package family, offering standardized mounting solutions for industrial and commercial power electronics applications.

Triacs Replacement Considerations

Compatible alternatives within the same product family include the BTB26-800CWRG, which shares identical electrical characteristics but lacks the insulated tab feature. Designers must verify insulation requirements when substituting between these variants.

Triacs FAQ

What is the insulation voltage rating of the BTA26-800CWRG?

The BTA26-800CWRG provides an insulation RMS voltage rating of 2500 VRMS for one minute.

Does the BTA26-800CWRG support snubberless operation?

Yes, the device is designed for snubberless operation in three quadrants, featuring a minimum critical rate of decrease of main current of 22 A/ms at 125 °C.

What is the maximum gate trigger current for this component?

The maximum gate trigger current (IGT) for the BTA26-800CWRG is 35 mA under standard test conditions.