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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV TRIAC 1CH 6-SMD
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tape & Reel (TR)
- Output Type：Triac
- Zero Crossing Circuit：Yes
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Voltage - Off State：400 V
- Static dV/dt (Min)：1kV/µs
- Current - LED Trigger (Ift) (Max)：5mA
- Current - On State (It (RMS)) (Max)：100 mA
- Current - Hold (Ih)：280µA (Typ)
- Turn On Time：-
- Voltage - Forward (Vf) (Typ)：1.5V (Max)
- Current - DC Forward (If) (Max)：60 mA
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：6-SMD, Gull Wing
- Supplier Device Package：6-SMD
- Approval Agency：CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL
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Overview
The EL3043S(TA) is a Triac and SCR output optocoupler manufactured by Everlight Electronics. It integrates a GaAs infrared emitting diode with a zero-crossing triac detector, designed for surface mount applications in a 6-SMD package. Key electrical specifications include a minimum off-state peak voltage of 400 V, a maximum on-state voltage of 3 V, and a peak surge current rating of 1 A. The device supports an operating temperature range from -55 °C to +100 °C and provides high isolation between input and output circuits.
Feature Summary
- Integrates a zero-voltage crossing detection circuit to minimize electromagnetic interference during switching.
- Provides high electrical isolation capability between the input LED and output triac detector.
- Features a compact surface-mount design suitable for automated assembly processes.
Applications
- Solid-state relay driver circuits
- AC motor speed control systems
- Lighting dimmer applications
Procurement Notes
Verify the specific suffix (TA) against the manufacturer's latest datasheet to confirm pinout configuration and tape-and-reel packaging details. Ensure compliance with RoHS directives and check for UL or VDE recognition requirements relevant to your target market regulations before finalizing procurement.
Selection Notes
Select this component when zero-crossing functionality is required to reduce noise in AC power control applications. Compare the 400 V blocking voltage against system line voltages to ensure adequate safety margins. Consider the 6-SMD footprint constraints and thermal management capabilities within the final enclosure design.
Part Context
This part belongs to the EL304X series of zero-crossing triac drivers. It shares architectural similarities with the EL303X, EL306X, and EL308X series, differentiated primarily by their off-state peak voltage ratings. The S(TA) designation indicates a specific surface-mount variant optimized for modern PCB manufacturing techniques.
Replacement Considerations
Direct substitutes may include other zero-crossing triac optocouplers from manufacturers such as Toshiba or Sharp. Verify that replacement parts match the 400 V minimum off-state voltage and 5000 Vrms isolation rating. Confirm package compatibility and pin assignment alignment to avoid redesign efforts.
