SFH617A-3

$0.14

Description：OPTOISO 4.47KV 1CH TRANS 4-DIP
Series：SFH617A
Mfr：Isocom Components 2004 LTD
Package：Tube

SKU:2436dad609c9 Category: Transistor, Photovoltaic Output Optoisolators Brand: Isocom Components 2004 LTD

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Product introduction

Product Detailed Parameters

Description：OPTOISO 4.47KV 1CH TRANS 4-DIP
Series：SFH617A
Mfr：Isocom Components 2004 LTD
Package：Tube
Number of Channels：1
Voltage - Isolation：4470Vrms
Current Transfer Ratio (Min)：100% @ 10mA
Current Transfer Ratio (Max)：200% @ 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：Through Hole
Package / Case：4-DIP (0.300", 7.62mm)
Supplier Device Package：4-DIP
Grade：-
Qualification：-

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SFH617A-3

Overview

The SFH617A-3 is a single-channel, through-hole optically coupled isolator manufactured by Isocom Components. It integrates an infrared LED with an NPN silicon phototransistor in a 4-pin PDIP package. Key electrical parameters include a maximum collector-emitter voltage of 70V and a peak forward current of 60mA. The device offers a typical rise time of 2μs and fall time of 14μs. It supports a wide operating temperature range from -55°C to +110°C and provides high isolation voltage of 5300Vrms.

Feature Summary

Provides galvanic isolation between input and output circuits using infrared light transmission
Features low input current requirements for efficient drive capability
Constructed with robust NPN silicon phototransistor output for reliable signal switching

Applications

Industrial control systems requiring circuit isolation
Signal transmission across isolated ground potentials
Power supply feedback loops for voltage regulation

Procurement Notes

Verify the manufacturer origin carefully, as this component is often associated with Vishay Semiconductors under the VO617A-3 designation. Ensure the specific suffix matches the required CTR binning and certification standards. Confirm RoHS compliance status directly with the supplier documentation before integration into production lines.

Selection Notes

Select this component when high isolation voltage and wide temperature stability are required. Compare the current transfer ratio against load requirements to ensure sufficient output saturation. Consider the DIP-4 package constraints for PCB layout and verify that the 70V collector-emitter rating exceeds the maximum circuit voltage.

Part Context

This part belongs to the SFH617A series of low-input-current phototransistor optocouplers. It is functionally equivalent to the Vishay VO617A-3. The series is designed for general-purpose isolation applications where compact size and high reliability are prioritized over high-speed data transmission capabilities.