Zero-cross AC output in an 8-SMD gull-wing package
The AQH1213A is a Panasonic AQ-H series signal relay with a SPST-NO (1 Form A) circuit, designed for switching AC loads up to 600 mA across a 0 V to 600 V range. The built-in zero-cross output means the relay turns on only when the AC waveform crosses zero, reducing inrush current and EMI in the load circuit — a useful trait when switching incandescent lamps, solenoid valves, or small transformers that draw a surge at turn-on. The input side triggers at 1.21 VDC, compatible with standard logic-level signals from a microcontroller or PLC output without an external level shifter. The 8-SMD package with gull-wing leads (0.300" body width, 7-lead footprint) suits automated pick-and-place assembly and reflow soldering on a standard FR-4 board.
Active production — no obsolescence concern for new designs
The base product number AQH1213 covers the series variant; the trailing 'A' suffix indicates the tube packaging option.