Sensitive-gate triac for low-power logic drive
The Z0109NN 5AA4 is a logic-level sensitive-gate triac from STMicroelectronics, rated for 800 V off-state voltage and 1 A RMS on-state current. The single triac configuration suits phase-control or on-off switching of resistive and inductive loads up to 1 A RMS.
800 V blocking with 8 A surge capability
The 800 V off-state voltage provides ample margin for 230 VAC and 277 VAC line switching — a common requirement in lighting, appliance, and industrial relay-replacement circuits. The non-repetitive surge current rating of 8 A (50 Hz) and 8.5 A (60 Hz) means the device can handle the inrush from incandescent lamps or capacitive loads without external protection in many applications. Hold current (Ih) is 10 mA maximum, which keeps the triac latched on once triggered across the full load range down to that threshold.
Pricing and lead time are confirmed at quote time against your BOM quantity.