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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV TRIAC 1CH 6-DIP
- 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)：5kV/µs
- Current - LED Trigger (Ift) (Max)：2mA
- Current - On State (It (RMS)) (Max)：300 mA
- Current - Hold (Ih)：500µA
- Turn On Time：-
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：60 mA
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Through Hole
- Package / Case：6-DIP (0.300", 7.62mm)
- Supplier Device Package：6-DIP
- Approval Agency：cUR, FIMKO, UR
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Overview
The VO4158H is a single-channel Triac output optocoupler manufactured by Vishay Semiconductor Opto Division. It integrates an AlGaAs LED with a zero-crossing detection circuit and a Triac output, designed for AC power switching applications. Key electrical parameters include a maximum off-state voltage (VDRM) of 800 V and a maximum continuous on-state current (IT(RMS)) of 300 mA. The device provides high isolation with an insulation voltage of 5300 Vrms. It operates within a temperature range of -55°C to +100°C and features a typical forward voltage (Vf) of 1.2 V at a maximum forward current (If) of 60 mA.
Feature Summary
- Integrates a zero-crossing detection circuit to minimize electromagnetic interference during AC switching operations.
- Provides high-voltage isolation capability suitable for safety-critical power control interfaces.
- Combines an AlGaAs infrared LED emitter with a sensitive Triac output for efficient signal transmission.
Applications
- Solid-state relays for AC load control
- Motor speed controllers and soft starters
- Lighting dimmer circuits
Procurement Notes
Verify the specific suffix against the manufacturer's datasheet to confirm package type and zero-crossing functionality. Ensure the ordered variant matches the required isolation voltage and thermal characteristics for the target application environment.
Selection Notes
Select this component when zero-crossing switching is required to reduce noise in AC line applications. Compare the 800 V blocking voltage and 300 mA current rating against load requirements. Consider the PDIP-6 or SMD package options based on board layout constraints.
Part Context
This part belongs to the VO41xx series of Triac output optocouplers from Vishay. It is distinct from non-zero-crossing variants like the VO4258H. The series is designed for general-purpose AC power switching where low EMI is a priority.
Replacement Considerations
Check for direct substitutes such as the VO4158M-X007T for surface-mount compatibility. Verify that alternative parts maintain the same zero-crossing feature and 5300 Vrms isolation rating.
FAQ
Does the VO4158H include a zero-crossing circuit?
Yes, the VO4158H is equipped with a zero-crossing detection circuit to ensure the Triac turns on only when the AC voltage is near zero.
What is the maximum isolation voltage of the VO4158H?
The device offers an insulation voltage of 5300 Vrms between the input LED and the output Triac.
