EL3012S(TB)

Overview

The EL3012S(TB) is a Triac and SCR output optocoupler manufactured by Everlight Electronics Co Ltd. It features a PhotoTriac output with an insulation voltage of 5000 Vrms and a peak repetitive off-state voltage (VDRM) of 250 V. The device operates within a temperature range of -55°C to +100°C and has a maximum forward current of 60 mA. It is housed in a 6-SMD package and lacks a zero-crossing circuit, classifying it as a random-phase triac driver.

Feature Summary

• Random-phase triac output configuration for AC power control applications
• High isolation capability with 5000 Vrms insulation voltage rating
• Wide operating temperature range suitable for industrial environments

Applications

• AC motor speed control circuits
• Solid state relay designs
• Lighting dimmer modules

Procurement Notes

Verify the specific suffix variant required, as packaging options such as tube or reel may affect availability. Confirm RoHS compliance status directly with the manufacturer or authorized distributors prior to ordering. Ensure the selected component matches the exact pinout and thermal requirements of the target design.

Selection Notes

Select this component when random-phase triggering is required rather than zero-crossing switching. Verify that the load voltage does not exceed the 250 V VDRM rating. Consider the 60 mA maximum forward current limit when designing the input drive circuitry to ensure reliable triac activation without exceeding device specifications.

Part Context

This part belongs to the EL301x series of optocouplers designed for general-purpose AC power switching. It serves as an electrical isolation barrier between low-voltage control logic and high-voltage AC loads. The SMD package facilitates surface-mount assembly processes.

Replacement Considerations

Check for direct pin-compatible substitutes from other manufacturers offering similar VDRM and isolation ratings. Verify that any replacement maintains the random-phase characteristic if zero-crossing behavior is not desired.