SFH628A-3X

$0.50

Description：OPTOISOLTR 5.3KV 1CH TRANS 4-DIP
Series：SFH628A-3
Mfr：Isocom Components 2004 LTD
Package：Tube

SKU:93039b4853e5 Category: Transistor, Photovoltaic Output Optoisolators Brand: Isocom Components 2004 LTD

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Product introduction

Product Detailed Parameters

Description：OPTOISOLTR 5.3KV 1CH TRANS 4-DIP
Series：SFH628A-3
Mfr：Isocom Components 2004 LTD
Package：Tube
Number of Channels：1
Voltage - Isolation：5300Vrms
Current Transfer Ratio (Min)：100% @ 1mA
Current Transfer Ratio (Max)：320% @ 1mA
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：4µs, 3µs
Input Type：AC, DC
Output Type：Transistor
Voltage - Output (Max)：55V
Current - Output / Channel：50mA
Voltage - Forward (Vf) (Typ)：1.5V (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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SFH628A-3X

Overview

The SFH628A-3X is a single-channel optocoupler featuring inverse parallel infrared LEDs and NPN silicon phototransistors. It utilizes a 4-pin PDIP package for through-hole mounting. Key electrical parameters include a maximum forward current of 50 mA, an isolation voltage of 5300 Vrms (7500 V peak), and a typical rise time of 4 µs with a fall time of 3 µs. The device supports AC input applications and offers a minimum current transfer ratio of 100%.

Feature Summary

Integrates inverse parallel infrared LEDs to enable direct AC signal input without external rectification.
Provides high-voltage electrical isolation between input and output circuits using NPN silicon phototransistor technology.
Designed for surface-mount or through-hole integration within compact electronic assemblies.

Applications

Logic-to-logic isolation in noisy industrial environments
Line receiver circuits
Programmable current level sensors
Digital control of motors and servo machines

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm pinout configuration and packaging type. Ensure the selected variant matches the required isolation voltage and current transfer ratio specifications for the target circuit design. Cross-reference the component marking with official datasheets to prevent substitution errors during assembly.

Selection Notes

Select this component when AC input capability is required without additional rectifying components. Evaluate the 5300 Vrms isolation rating against system safety standards. Consider the 4 µs rise time for signal integrity requirements. Confirm that the NPN phototransistor output characteristics align with the load interface constraints.

Part Context

This part belongs to the SFH628A series of optically coupled isolators manufactured by Isocom Components 2004 LTD. The series focuses on providing reliable galvanic isolation for commercial and industrial applications. The brand specializes in standard industry replacements and custom parameter adjustments for legacy and modern designs.