FOD410SDV

Triac, SCR Output Optoisolators Overview

The FOD410SDV is a single-channel Triac and SCR output optocoupler manufactured by onsemi. It features an infrared LED coupled to a hybrid triac composed of two back-to-back SCRs, designed for snubless triac drive applications with zero-crossing detection. The device operates in a surface-mount SMD-DIP-6 package. Key electrical specifications include a 5000 Vrms isolation voltage, a forward current of 30 mA, and a forward voltage of 1.25 V. It supports a maximum continuous output current of 300 mA and withstands an off-state voltage (VDRM) of 800 V. The unit operates within a temperature range of -55°C to +100°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrates zero-crossing circuitry to minimize electromagnetic interference during AC power switching.
• Provides high static dv/dt immunity to prevent false triggering from rapid voltage transients.
• Features a hybrid triac structure combining two reverse-parallel SCRs for robust load driving.
• Offers certified electrical insulation suitable for safety-critical isolation requirements.

Triac, SCR Output Optoisolators Applications

• Snubless triac driver circuits for AC power control
• Solid-state relay (SSR) input stages
• Motor speed control systems
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'SDV' corresponds to the required SMD-DIP-6 tape-and-reel packaging configuration. Confirm that the 800 V blocking voltage meets the peak line voltage requirements of the target application. Ensure the 300 mA output current rating accommodates the gate drive needs of the external triac without exceeding thermal limits.

Triac, SCR Output Optoisolators Selection Notes

Select this component when snubber-less operation is required to reduce bill-of-materials complexity. The integrated zero-crossing feature simplifies design for noise-sensitive environments. Compare the 2 mA trigger current against available microcontroller GPIO drive capabilities to ensure reliable activation under all operating conditions.

Triac, SCR Output Optoisolators Part Context

This part belongs to the FOD410 series of high dv/dt triac drivers. It shares architectural similarities with the FOD4108, differing primarily in blocking voltage ratings. The series is designed for industrial and consumer AC switching applications requiring galvanic isolation between low-voltage control logic and high-voltage mains loads.

Triac, SCR Output Optoisolators Replacement Considerations

FOD4108SDV offers identical pinout and functionality but provides an 800 V blocking voltage compared to the FOD410's 600 V rating. Verify voltage headroom requirements before substituting. Cross-brand equivalents such as Vishay IL410-X017 may require schematic review due to potential parameter variations.

Triac, SCR Output Optoisolators FAQ

Does the FOD410SDV include internal snubber components?

No, it is designed for snubless applications, relying on its high dv/dt immunity to operate without external RC snubber networks.

What is the maximum off-state voltage capability?

The device supports a maximum off-state repetitive peak voltage (VDRM) of 800 V.