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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：No
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Voltage - Off State：700 V
- Static dV/dt (Min)：5kV/µs
- Current - LED Trigger (Ift) (Max)：2mA
- Current - On State (It (RMS)) (Max)：300 mA
- Current - Hold (Ih)：-
- 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：BSI, cUR, FIMKO, UR
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Overview
The VO4257H is a non-zero-crossing phototriac output optocoupler manufactured by Vishay Semiconductor Opto Division. It features a high dV/dt rating of 5kV/us and operates with a low input current of 2mA. The device provides an isolation voltage of 5300 Vrms and supports a peak repetitive off-state voltage (VDRM) of 700V. It is housed in a PDIP-6 package, suitable for through-hole mounting, and functions within a temperature range of -55°C to +100°C.
Feature Summary
- High dV/dt capability of 5kV/us for noise immunity
- Low input current requirement of 2mA
- Non-zero-crossing triac output design
Applications
- Industrial motor control systems
- Solid state relay circuits
- AC power switching applications
Procurement Notes
Verify the specific suffix designation against official Vishay documentation to confirm exact electrical tolerances and packaging variations. Confirm component availability status as obsolete or active models may exist within the series. Ensure the selected variant matches the required isolation voltage and thermal specifications for the target application environment.
Selection Notes
Select this component when high dv/dt immunity is critical for reliable operation in noisy environments. The non-zero-crossing architecture allows for phase-angle control applications where precise timing is required. Verify that the 700V blocking voltage meets the circuit requirements and that the 5300 Vrms isolation rating satisfies safety standards.
Part Context
This component belongs to the VO425x family of phototriac output optocouplers from Vishay. These devices are designed for general-purpose AC power switching and isolation tasks. The family includes variants with different voltage ratings and trigger currents, offering flexibility for various industrial and consumer electronics applications requiring galvanic isolation.
Replacement Considerations
Check for direct substitutes such as the VO4256H or VO4258H if voltage ratings differ. Verify pinout compatibility and isolation voltage requirements before substitution. Consult Vishay datasheets for equivalent performance characteristics.
