Logic-level gate and isolated package for AC switching
The BTA202X-800D,127 is a logic-level sensitive-gate triac from WeEn, rated for 800 V off-state and 2 A RMS on-state current. Housed in a TO-220-3 Full Pack with an isolated tab (TO-220F), the package provides galvanic isolation between the die and the heatsink surface — no insulating pad or washer is needed when mounting to a grounded chassis or heatsink. This simplifies assembly and improves thermal transfer for line-powered loads like small motors, solenoids, or lighting ballasts.
Surge capability and hold current for inductive loads
Non-repetitive surge current is rated at 14 A at 50 Hz and 15.4 A at 60 Hz — this covers inrush from incandescent lamps or capacitive loads without exceeding the die's thermal capacity. The 5 mA max hold current keeps the triac latched through the zero-cross of inductive loads, reducing the risk of premature commutation dropout. Operating junction temperature extends to 125 °C, which gives margin in enclosed or thermally constrained assemblies. The isolated tab means the heatsink can be shared across multiple triacs on the same rail without isolation hardware.
Active lifecycle and sourcing posture
Supplied in bulk packaging (tube), suitable for hand-loading or vibratory-bowl feeders in through-hole assembly lines. No reel or tape-and-reel option is listed for this order code.