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Product Detailed Parameters
- Description：OPTOISOLTR 3.75KV TRIAC 1CH 4SOP
- Series：WL-OCTR
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Triac
- Zero Crossing Circuit：No
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Voltage - Off State：250 V
- Static dV/dt (Min)：1kV/µs
- Current - LED Trigger (Ift) (Max)：5mA
- Current - On State (It (RMS)) (Max)：-
- Current - Hold (Ih)：257µA (Typ)
- Turn On Time：-
- Voltage - Forward (Vf) (Typ)：1.24V
- Current - DC Forward (If) (Max)：60 mA
- Operating Temperature：-40°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SOP
- Approval Agency：CQC, cULus, cURus, UL, VDE
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Overview
The Würth Elektronik 14230134500 is a WL-OCTR series Triac output optocoupler housed in a SOP-4 package. It features a random phase triac output with an isolation voltage of 3750 Vrms and a peak repetitive off-state voltage (VDRM) of 250 V. The device operates with a maximum forward current of 60 mA, a forward voltage of 1.24 V, and a power dissipation of 330 mW. It triggers at a maximum gate trigger current of 5 mA and functions within a temperature range of -40°C to +100°C.
Feature Summary
- Random phase triac output for non-zero-crossing control applications
- High insulation voltage capability of 3750 Vrms
- Compact SOP-4 surface mount packaging
Applications
- AC load switching circuits
- Solid state relays
- Motor speed control systems
Procurement Notes
Verify the specific part number against official Wurth Elektronik documentation to confirm the 250V rating, as some listings may reference different variants within the same family. Ensure the SOP-4 package matches your PCB footprint requirements. Cross-reference the datasheet for exact thermal derating curves and recommended operating conditions before finalizing procurement specifications.
Selection Notes
Select this component when zero-crossing detection is not required, allowing for immediate conduction upon trigger signal application. The 250V off-state voltage suits lower voltage AC mains or controlled loads. Consider the 5mA trigger current requirement for driver interface compatibility. The SOP-4 form factor offers space efficiency for dense circuit board layouts compared to larger through-hole alternatives.
Part Context
This device belongs to the WL-OCTR series from Würth Elektronik, designed for general-purpose AC switching. It integrates an infrared emitting diode with a silicon triac detector on a single chip. The series provides electrical isolation between control and load sides, ensuring safety in low-voltage control interfaces driving higher voltage AC loads.
Replacement Considerations
Check for direct substitutes within the WL-OCTR family that match the 250V rating and SOP-4 package. Verify pinout compatibility and electrical parameters such as trigger current and isolation voltage before substituting.
