SFH620A-3SM

$0.18

Description：OPTOISOLTR 5.3KV 1CH TRANS 4-SMD
Series：SFH620A-3
Mfr：Isocom Components 2004 LTD
Package：Tube

SKU:4f638f6f89dc 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-SMD
Series：SFH620A-3
Mfr：Isocom Components 2004 LTD
Package：Tube
Number of Channels：1
Voltage - Isolation：5300Vrms
Current Transfer Ratio (Min)：100% @ 10mA
Current Transfer Ratio (Max)：320% @ 10mA
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：4µs, 3µs
Input Type：AC, DC
Output Type：Transistor
Voltage - Output (Max)：70V
Current - Output / Channel：50mA
Voltage - Forward (Vf) (Typ)：1.65V
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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SFH620A-3SM

Overview

The SFH620A-3SM is a single-channel optoisolator featuring an NPN silicon phototransistor output and inverse parallel infrared LED inputs. It provides high isolation with a minimum isolation voltage of 5300 Vrms and a peak withstand voltage of 7500 Vpk. The device operates in a DIP-4 package, supporting a maximum input current of ±50 mA. Key electrical characteristics include a typical rise time of 4 µs and a fall time of 3 µs. Current transfer ratios range from a minimum of 100% to a maximum of 320%, with a collector-emitter saturation voltage of 0.4 V at specified test conditions.

Feature Summary

Features inverse parallel infrared LEDs for AC input compatibility
Provides high-voltage galvanic isolation between input and output circuits
Utilizes NPN silicon phototransistor for digital signal transmission

Applications

Logic-to-logic isolation in noisy environments
Line receiver circuits
Computer and peripheral device interfaces

Procurement Notes

Verify the specific suffix '3SM' against official Isocom documentation to confirm pinout and packaging details, as suffixes often denote tape-and-reel or specific mechanical variations. Ensure compliance requirements such as UL and VDE certifications are explicitly stated for the exact part number variant in the datasheet before procurement.

Selection Notes

Select this component when AC input driving capability is required due to the inverse parallel LED configuration. The high isolation voltage makes it suitable for mains-connected applications. Verify that the current transfer ratio and switching speeds meet the specific timing requirements of the target circuit design.

Part Context

The SFH620A series consists of optically coupled isolators combining infrared emitters with NPN phototransistors. This series serves as a replacement for legacy components in industrial and commercial applications. Isocom Components manufactures these devices to meet international safety standards, ensuring reliability in isolated power and signal transmission systems.