S2S3LB

Triac, SCR Output Optoisolators Overview

The S2S3LB is a single-channel Triac output optocoupler manufactured by Sharp Microelectronics. It features a Mini-Flat SOP-4 surface-mount package designed for compact circuit integration. The device provides an isolation voltage of 3750 Vrms between input and output circuits. Key electrical parameters include a maximum forward current (If) of 50 mA, a peak off-state voltage (VDRM) of 600 V, and a maximum RMS on-state current of 50 mA. The unit operates within a temperature range of -30°C to +100°C and lacks a zero-crossing detection circuit.

Triac, SCR Output Optoisolators Feature Summary

• Non-zero-crossing Triac output configuration for precise phase control applications
• High insulation capability with 3750 Vrms isolation rating
• Compact Mini-Flat SOP-4 surface-mount packaging for space-constrained designs

Triac, SCR Output Optoisolators Applications

• Solid-state relay (SSR) modules
• AC motor speed control circuits
• Lighting dimmer systems
• Industrial process control interfaces

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific ordering suffix and revision level against the latest official datasheet before procurement. Confirm that the non-zero-crossing characteristic aligns with the target application's switching requirements. Ensure compatibility with the specified SOP-4 footprint and soldering profiles during assembly planning.

Triac, SCR Output Optoisolators Selection Notes

Select this component when high isolation voltage and compact surface-mount form factors are required for AC load switching. The absence of a zero-crossing circuit makes it suitable for applications requiring immediate turn-on response rather than noise reduction at voltage peaks. Evaluate thermal management needs given the 50 mA continuous current rating.

Triac, SCR Output Optoisolators Part Context

The S2S3LB belongs to Sharp’s Triac and SCR output optocoupler family, specifically utilizing the Mini-Flat package architecture. This series is engineered for reliable optical coupling in industrial and consumer electronics where galvanic isolation is critical. It serves as a bridge between low-voltage control logic and higher-voltage AC power stages.

Triac, SCR Output Optoisolators Replacement Considerations

Cross-reference with other Sharp S2S3 series variants or equivalent Triac output optocouplers from other manufacturers if availability is constrained. Verify pinout compatibility and electrical parameter margins when substituting.