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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：400 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：cUR, FIMKO, UR
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Overview
The VO4254H is a single-channel Triac and SCR output optocoupler manufactured by Vishay Semiconductor Opto Division. It features a PhotoTriac output without a zero-crossing circuit, designed for through-hole DIP-6 packaging. Key electrical parameters include an isolation voltage of 5300 Vrms, a maximum repetitive peak off-state voltage (VDRM) of 400 V, and a maximum continuous output current of 300 mA. The device operates with a forward current up to 60 mA, a forward voltage of 1.2 V, and power dissipation of 600 mW. It supports a gate trigger current of 2 mA and functions within a temperature range of -55°C to +100°C.
Feature Summary
- Provides galvanic isolation between control circuits and high-voltage AC loads using a non-zero-crossing PhotoTriac output.
- Delivers high insulation capability with a rated isolation voltage of 5300 Vrms for safe operation in demanding environments.
- Supports direct driving of triacs and SCRs in phase-control applications requiring precise timing without zero-crossing detection.
Applications
- Phase-angle control circuits for AC power regulation
- Solid-state relay (SSR) driver interfaces
- Industrial motor speed control systems
Procurement Notes
Verify component authenticity and datasheet revisions upon procurement. Confirm package integrity and pin alignment prior to assembly. Ensure storage conditions comply with manufacturer guidelines to maintain reliability. Check for end-of-life status or obsolescence notifications before finalizing design integration.
Selection Notes
Select this component when non-zero-crossing triac triggering is required for phase-control applications. Verify that the 400 V blocking voltage meets the load requirements. Ensure the DIP-6 through-hole package fits the PCB layout constraints. Confirm compatibility with the driving circuit's current limits and thermal management needs.
Part Context
The VO4254H belongs to Vishay's Triac & SCR Output Optocouplers family. It shares functional similarities with other models like the VO4256H but differs in voltage ratings. This specific part is optimized for lower voltage AC switching compared to higher-voltage variants in the same series.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult official Vishay resources for cross-reference data if replacement is necessary.
