VOT8024AD

Overview

The VOT8024AD is a Triac and SCR output optocoupler featuring a GaAs infrared LED optically coupled to a photosensitive zero-crossing TRIAC. It is housed in a DIP-4 package designed for through-hole mounting. Key electrical specifications include an isolation voltage of 5300 Vrms, a forward current (If) maximum of 50 mA, and a forward voltage (Vf) typical of 1.2 V. The device supports a power dissipation of 250 mW and offers an off-state repetitive peak voltage (VDRM) of 800 V. Operating temperatures range from -55°C to +110°C.

Feature Summary

• Integrates a zero-crossing circuit to minimize electromagnetic interference during switching.

Applications

• Isolating low-voltage logic from AC mains lines
• Controlling resistive loads connected to AC power sources
• Switching inductive or capacitive loads such as motors

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm pinout and certification requirements. Ensure the DIP-4 package style matches the target PCB layout. Confirm that the 5300 Vrms isolation rating meets the safety standards required for the intended AC line interface application.

Selection Notes

Select this component when zero-crossing detection is required to reduce noise in AC control circuits. The DIP-4 package suits designs prioritizing through-hole assembly. Verify that the 800 VDRM rating exceeds the peak voltage of the AC line being controlled. Consider the 50 mA forward current limit when designing the input drive circuitry.

Part Context

This part belongs to Vishay's family of Triac and SCR output optocouplers. It shares functional similarities with other VOT8024 variants but differs in packaging and specific certification markings. The zero-crossing feature distinguishes it from non-zero-crossing counterparts like the BRT series.

Replacement Considerations

Check datasheets for alternative DIP-4 zero-crossing phototriacs. Verify compatibility of isolation voltage and VDRM ratings before substitution.