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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV TRIAC 1CH 4-SMD
- Series：-
- Mfr：Vishay Semiconductor Opto Division
- Package：Tube
- Output Type：Triac
- Zero Crossing Circuit：Yes
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Voltage - Off State：800 V
- Static dV/dt (Min)：1kV/µs
- Current - LED Trigger (Ift) (Max)：5mA
- Current - On State (It (RMS)) (Max)：100 mA
- Current - Hold (Ih)：400µA (Typ)
- Turn On Time：-
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Approval Agency：CQC, cUL, UL, VDE
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Overview
The VOT8024AB is a Triac and SCR output optocoupler manufactured by Vishay Semiconductor Opto Division. It features a PhotoTriac output with an integrated zero-crossing circuit, designed for surface-mount applications in SMD-4 packages. The device provides high isolation voltage of 5300 Vrms and supports an off-state repetitive peak voltage (VDRM) of 800 V. Key electrical parameters include a forward current (If) of 50 mA, forward voltage (Vf) of 1.2 V, and power dissipation (Pd) of 250 mW. It operates within a temperature range of -55°C to +110°C and has a maximum gate trigger current of 5 mA.
Feature Summary
- Integrated zero-crossing detection circuitry for low electromagnetic interference switching
- High insulation voltage capability ensuring safe galvanic isolation between input and output circuits
- Surface-mount SMD-4 package design optimized for automated assembly processes
Applications
- Solid-state relay control circuits
- AC motor speed control systems
- Lighting dimmer applications
Procurement Notes
Verify the specific suffix designation when ordering, as packaging formats vary significantly between tube and reel configurations. Confirm that the selected variant meets the required insulation standards for your application safety regulations. Ensure compatibility with the intended PCB footprint for the SMD-4 package type before finalizing procurement decisions.
Selection Notes
Select this component when high-voltage isolation and precise zero-crossing timing are critical for reducing electrical noise. Consider the thermal management requirements given the 250 mW power dissipation limit. Evaluate the operating temperature range against environmental conditions to ensure reliability within the specified -55°C to +110°C window.
Part Context
This device belongs to Vishay's family of Triac output optocouplers designed for AC power control applications. It utilizes LED-to-PhotoTriac technology to provide robust signal transmission across isolated barriers. The integration of zero-crossing logic simplifies driver circuit design by minimizing switching transients during AC cycle transitions.
Replacement Considerations
Check datasheets for alternative models such as VOT8024AG-V or VOT8024AB-T3 if different packaging or certification requirements are needed. Verify pinout compatibility and electrical parameter equivalence before substituting.
