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Product Detailed Parameters
- Description：OPTOISOLTR 4KV 1CH TRANS 8-SOIC
- Series：-
- Mfr：Vishay Semiconductor Opto Division
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Channels：1
- Voltage - Isolation：4000Vrms
- Current Transfer Ratio (Min)：19% @ 16mA
- Current Transfer Ratio (Max)：50% @ 16mA
- Turn On / Turn Off Time (Typ)：250ns, 500ns
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：25V
- Current - Output / Channel：8mA
- Voltage - Forward (Vf) (Typ)：1.6V
- Current - DC Forward (If) (Max)：25 mA
- Vce Saturation (Max)：-
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The SFH6343T is a high-speed optocoupler featuring a single channel with a transistor output configuration. It provides an isolation voltage of 4000 Vrms and supports data transfer rates up to 1 MBd. The device operates within a temperature range of -55°C to 100°C, with a maximum forward current of 25 mA and a typical forward voltage of 1.6V. Output characteristics include a collector-emitter voltage of 25V and a current transfer ratio of 19-50% at 16mA input.
Feature Summary
- High-speed operation supporting 1 MBd data rates
- Robust insulation voltage of 4000 Vrms for safety isolation
- Wide operating temperature range from -55°C to 100°C
Applications
- Industrial communication interfaces
- Power supply feedback circuits
- Signal isolation in noisy environments
Procurement Notes
Verify the specific suffix (e.g., E9441) against the manufacturer's official documentation to confirm packaging and compliance details. Ensure the component meets required isolation standards for the target application. Cross-reference the datasheet revision date to validate parameter accuracy before integration into design specifications.
Selection Notes
Select this component when high-speed signal transmission is required alongside galvanic isolation. The transistor output suits digital logic interfacing. Evaluate thermal management requirements given the 100°C upper limit. Confirm that the 25V collector-emitter voltage aligns with the load circuit constraints.
Part Context
This part belongs to Vishay's SFH63 series of surface-mount optocouplers. It utilizes SOIC-8 packaging for compact board space utilization. The series is designed for applications demanding reliable electrical isolation between input and output circuits while maintaining high-speed data integrity.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Consult official distributor databases or manufacturer cross-reference guides for compatible alternatives meeting identical pinout and electrical specifications.
