CHTA12-400 Crydom - TRIAC

CHTA12-400 Description

The Crydom CHTA12-400 is a solid state relay, rated for 400 V and 12 A. Solid state relays like this switch heaters, motors, lamps and other loads quietly and without contact wear.

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Summary of Features

Target Applications

Crydom CHTA12-400 is used for AC switching and phase control in heaters, lighting dimmers, motor speed control, appliances and solid state relays.

Key Specifications

Crydom CHTA12-400 is a 12 A, 400 V high-temperature (150°C junction) TRIAC in a TO-220AB isolated package. Source: Crydom CHTA/CHTB12 TRIAC datasheet. Values at 25°C unless noted.

Parameter	Value
RMS on-state current (full sine wave)	12 A (Tc = 120°C)
Repetitive peak off-state voltage (VDRM/VRRM)	400 V
Gate trigger current IGT (max, QI-II-III)	35 mA
Gate trigger voltage VGT (max)	1.3 V
Holding current IH (max)	35 mA
Critical rate of rise of off-state voltage dv/dt (min, Tj = 150°C)	300 V/µs
Non-repetitive surge peak on-state current	140 A (50 Hz) / 145 A (60 Hz)
I²t for fusing (10 ms)	112 A²s
On-state voltage VT (max)	1.5 V @ ITM = 17 A
Thermal resistance junction to case	2.3 °C/W
Isolation voltage	2500 Vrms
Operating junction temperature	-40 to 150°C
Package	TO-220AB isolated

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