H11C1

Triac, SCR Output Optoisolators Overview

The onsemi H11C1 is a single-channel Triac and SCR output optocoupler designed for zero-crossing detection and AC load control. It features a gallium arsenide infrared LED coupled to an integrated silicon photo-SCR. The device provides high isolation voltage of 5300Vrms, ensuring safe separation between input and output circuits. Key electrical parameters include a maximum forward current of 60 mA, a typical forward voltage of 1.2 V, and a peak repetitive off-state voltage of 200 V. It operates within a temperature range of -55°C to +100°C and supports a maximum trigger current of 11 mA.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a gallium arsenide infrared emitter with a silicon photo-SCR detector for efficient optical coupling.
• Provides robust electrical isolation with a rated isolation voltage of 5300Vrms.
• Designed for direct interface with logic circuits to control AC loads such as triacs and SCRs.
• Features a compact six-pin package suitable for through-hole mounting applications.

Triac, SCR Output Optoisolators Applications

• AC power switching and control systems
• Solid-state relay (SSR) driver circuits
• Zero-crossing detection for phase angle control
• Industrial motor control interfaces

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., W for DIP) against the required package type. Confirm availability status as some variants may be discontinued or have limited stock. Ensure compliance with RoHS and REACH regulations if required by the target market. Cross-reference datasheet specifications for thermal management requirements in high-density PCB layouts.

Triac, SCR Output Optoisolators Selection Notes

Select this component when high isolation voltage and reliable SCR triggering are required. Consider the 60 mA maximum forward current limit for LED drive circuit design. Evaluate the 200 V peak off-state voltage capability against the AC line voltage being controlled. Ensure the operating temperature range meets the environmental conditions of the final application.

Triac, SCR Output Optoisolators Part Context

The H11C1 belongs to the H11C series of Triac and SCR output optocouplers from onsemi. This family is widely used in industrial and consumer electronics for isolating low-voltage control signals from high-voltage AC power lines. The device complements other optocouplers in the portfolio that offer different output types such as phototransistors or logic gates.

Triac, SCR Output Optoisolators Replacement Considerations

Check for direct pin-compatible substitutes within the H11C series, such as H11C2 or H11C3, which may offer different isolation ratings or packaging options. Verify that any replacement maintains the 5300Vrms isolation rating and compatible trigger current specifications to ensure circuit functionality remains unchanged.