Standard triac for AC power switching
The STMicroelectronics T1635H-8I is a standard triac in the ECOPACK®2 series, rated for 800 V off-state voltage and 16 A RMS on-state current. It comes in a through-hole TO-220AB insulated package, making it a direct fit for AC power control in industrial and commercial equipment — motor speed drives, heater banks, lighting dimmers, and solid-state relay front-ends. The junction temperature range of -40°C to 125°C covers outdoor enclosures and engine-bay environments without derating concerns.
Lifecycle and sourcing
The T1635H-8I carries an Active lifecycle status with ROHS3 compliance. No last-time-buy or end-of-life notice is in effect. The ECOPACK®2 series designation means the package meets ST's halogen-free and antimony-free requirements. Sourced and quoted to order through independent distribution.
Package and mounting
The TO-220AB insulated package (supplier device package TO-220AB Insulated) eliminates the need for an external insulating washer when bolting to a heatsink. Through-hole mounting suits point-to-point wiring.