WTA20

Webwatch Features ■ IT(RMS) = 20 A ■ VDRM, VRRM = 600 and 700 V ■ IGT (Q1) (max) = 35 and 50 mA Description The WTA20 Triacs use high performance glass passivated chip technology. The Snubberless concept offers suppression of the RC network and is suitable for applications such as phase control and static switching on inductive or resistive load. Thanks to their clip assembly technique, the WTA20 Triacs provide a superior performance in surge current handling capabilities. By using an internal ceramic pad, the WTA series provides voltage insulated tab (rated at 2500Vrms) WTA20 20A Triacs Datasheet  production data A2 G A1 A1 A2 G TO-220AB Insulated TM: Snubberless is a trademark of STMicroelectronics. This is information on a product in full production. 1/6 Characteristics 1 Characteristics WTA20 Table 1. Symbol Absolute maximum ratings Parameter Value Unit IT(RMS) ITSM I²t dI/dt VDSM, VRSM IGM VGM PG(AV) Tstg Tj On-state rms current (full sine wave) Tc = 70 °C 20 A Non repetitive surge peak on-state current (full cycle, Tj initial = 25°C) F = 50 Hz F = 60 Hz t = 10 ms t = 8.3 ms 210 200 A I²t Value for fusing tp = 10 ms 200 A²s Repetitive Critical rate of rise of on-state current F = 50 Hz IG = 2 x IGT, tr  100 ns Tj = 125 °C 50 A/µs Non repetitive 100 Non repetitive peak off-state voltage tp = 10 ms Tj = 25 °C VDSM/VRSM + 100 V Peak gate current Peak positive gate voltage Average gate power dissipation tp = 20 µs tp = 20 µs Storage junct...