Specifications: The APY214S is a fast-response, medium-voltage relay in a standard SOP-4 footprint. It is rated for 120mA at 400V (AC/DC) with a 14Ω on-state resistance and provides 2500Vrms of isolation. It features a swift 100μs turn-on and a 30μs turn-off. Engineered for reliable performance, it operates from -40°C to 85°C with a 1.2-1.4VDC input signal.

Application Scenarios: Its speed and voltage capability make it suitable for active snubber circuits in switch-mode power supplies, where it quickly clamps voltage spikes. It's also used in pulse-width modulation (PWM) dimming circuits for high-voltage LED strings, and for fast enable/disable control in RF power amplifier modules, ensuring clean switching transitions.