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Product Detailed Parameters
- Description：OPTOISOLTR 3.75KV 1CH DARL 4-SOP
- Series：-
- Mfr：TT Electronics/Optek Technology
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：1000% @ 1mA
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：100µs, 20µs
- Input Type：DC
- Output Type：Darlington
- Voltage - Output (Max)：300V
- Current - Output / Channel：150mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：1.5V
- Operating Temperature：-30°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SOP (2.54mm)
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Overview
The OPIA401BTU is a single-channel transistor output optocoupler manufactured by TT Electronics/Optek Technology. It features a Darlington transistor output stage designed for high current transfer applications. The device provides electrical isolation with a rated isolation voltage of 3750Vrms. It utilizes a surface-mount 4-SOP package with a 2.54mm pitch, suitable for automated assembly processes. Key electrical characteristics include a minimum DC current transfer ratio of 1000% at an input current of 1mA, a maximum collector-emitter saturation voltage of 1.5V, and a typical rise time of 100µs. The component supports a maximum forward current of 50mA and operates within a temperature range of -30°C to 100°C.
Feature Summary
- High current gain capability via Darlington output configuration
- Robust electrical isolation for safety-critical circuits
- Surface-mount packaging optimized for SMD assembly lines
Applications
- Industrial control systems requiring signal isolation
- Power supply feedback loops
- Solid-state relay driver circuits
Procurement Notes
Verify the specific suffix against official manufacturer documentation to confirm package type and tape/reel specifications. Confirm availability status as distribution data may indicate obsolete or end-of-life classifications. Cross-reference the full part number with the latest datasheet revision to ensure compliance with current RoHS and REACH regulatory standards before finalizing procurement orders.
Selection Notes
Select this component when high current drive capability is required from a low-power control signal. The Darlington output allows for direct driving of loads that exceed standard phototransistor limits. Ensure the application environment remains within the specified operating temperature range. Verify that the required isolation voltage meets the system safety requirements.
Part Context
This device belongs to the OPIA series of optocouplers from TT Electronics/Optek Technology. The series includes various configurations for different isolation and speed requirements. The OPIA401 variant specifically targets applications needing high current transfer ratios. It is distinct from other series members by its specific output stage and package dimensions.
Replacement Considerations
Public records identify LTV-352T by Lite-On as a direct substitute for the related OPIA401BTR variant. Verify pinout compatibility and electrical parameter equivalence before substituting.
