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Product Detailed Parameters
- Description：OPTOISO 4.47KV 1CH TRANS 4-SMD
- Series：SFH617A
- Mfr：Isocom Components 2004 LTD
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：4470Vrms
- Current Transfer Ratio (Min)：63% @ 10mA
- Current Transfer Ratio (Max)：125% @ 10mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.65V (Max)
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-30°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The SFH617A-2SMT&R is a surface-mount optocoupler from Isocom Components, featuring a single channel with a phototransistor output. It utilizes a 4-pin SMD PDIP package and accepts DC input. Key electrical parameters include a maximum forward voltage of 1.65V, a maximum input current of 50 mA, and an isolation voltage of 5.3 kVrms. The device exhibits a typical rise time of 2µs and a typical fall time of 14µs. Current transfer ratio specifications range from a minimum of 63% to a maximum of 200%, ensuring reliable signal transmission across the isolation barrier.
Feature Summary
- Provides galvanic isolation between input and output circuits using a phototransistor configuration.
- Designed for surface-mount assembly in compact electronic layouts.
- Supports direct DC input control for switching applications.
Applications
- Industrial automation control systems
- Embedded system interface circuits
- General-purpose electronics signal isolation
Procurement Notes
Verify the specific suffix 'SMT&R' confirms the tape-and-reel packaging format required for automated placement. Ensure the component matches the 4-pin SMD footprint dimensions specified in the official datasheet. Confirm that the manufacturer designation aligns with Isocom Components 2004 LTD to guarantee authenticity and traceability of the silicon die.
Selection Notes
Select this component when a surface-mount solution is required for single-channel isolation. Compare the 50 mA input current limit against circuit drive capabilities. Evaluate the 63% to 200% current transfer ratio range to ensure adequate output saturation for the load. Consider the 5.3 kVrms isolation rating for safety compliance requirements in the target application environment.
Part Context
This part belongs to the SFH series of optocouplers, which are widely used for electrical isolation. The SFH617A variant specifically denotes a phototransistor output type. The SMT&R suffix indicates a surface-mount device supplied in tape and reel packaging, distinguishing it from through-hole or loose-pack variants within the same functional family.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical ratings before considering any alternative components from other manufacturers.
