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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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Overview
The SFH620A-3XSM is a surface-mount optocoupler from the SFH620A series, manufactured by Isocom Components 2004 LTD. It features inverse parallel infrared light emitting diodes paired with an NPN silicon phototransistor output. The device provides electrical isolation between circuits via optical transmission. Key parameters include a maximum forward voltage of 1.65V, a typical rise time of 4µs, and a typical fall time of 3µs. It supports a maximum input current of ±50 mA and offers a minimum isolation voltage of 5300 Vrms. The component has a maximum current transfer ratio of 320% and a minimum of 100%, housed in a compact surface-mount package.
Feature Summary
- Inverse parallel infrared LED configuration for AC input compatibility
- NPN silicon phototransistor output for digital signal isolation
- High isolation voltage rating for safety-critical applications
Applications
- Logic to logic isolators in noisy environments
- Line receivers for communication interfaces
- Programmable current level sensors
- Digital control of motors and servo machines
Procurement Notes
Verify the specific suffix 'XSM' against official Isocom documentation to confirm surface-mount packaging and pinout configuration. Ensure compliance with RoHS and relevant EU directives if required for the target market. Confirm availability status as this variant may not be standard stock. Cross-reference parametric equivalents only if exact part numbers are unavailable, ensuring all electrical characteristics match the original specifications.
Selection Notes
Select this component when AC input capability is required due to the inverse parallel LED structure. The high current transfer ratio makes it suitable for driving loads directly without additional amplification. Consider the surface-mount form factor for automated assembly processes. Verify that the isolation voltage meets the system's safety requirements. Ensure the operating temperature range aligns with the application environment constraints.
Part Context
The SFH620A-3XSM belongs to the SFH620A series, which includes various optocoupler variants designed for general-purpose isolation. Isocom Components 2004 LTD specializes in optocoupler replacements and customizations. This series is widely used in industrial control, telecommunications, and computer peripheral interfaces. The manufacturer maintains production facilities in Malaysia and testing operations in the UK, ensuring quality standards across their product line.
Replacement Considerations
Parametric equivalents are available for this component. Check datasheets for matching current transfer ratios and isolation voltages. Verify package dimensions for direct replacement in existing PCB layouts.
