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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV 1CH TRANS 4-DIP
- Series：SFH620A-1
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：40% @ 10mA
- Current Transfer Ratio (Max)：125% @ 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：Through Hole
- Package / Case：4-DIP (0.300", 7.62mm)
- Supplier Device Package：4-DIP
- Grade：-
- Qualification：-
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Overview
The SFH620A-1 is an optically coupled isolator manufactured by Isocom Components 2004 LTD. It features inverse parallel infrared light emitting diodes and an NPN silicon photo transistor output. The device supports both AC and DC input types, making it suitable for various isolation applications. Key electrical parameters include a maximum collector-emitter voltage of 70V and a maximum forward voltage of 1.65V. The typical rise and fall times are 4µs and 3µs respectively, with a maximum current transfer ratio of 125% at 10mA. It operates within a temperature range of -55°C to 100°C.
Feature Summary
- Inverse parallel infrared LED configuration enables direct AC input capability without external rectification.
Applications
- Logic-to-logic isolation in noisy environments
- Line receiver circuits
- Programmable current level sensors
Procurement Notes
Verify the specific suffix (e.g., -1, -3) to ensure correct packaging and binning requirements. Confirm RoHS compliance status as per the latest datasheet revision. Check for UL and VDE certifications if safety isolation is required for the application. Ensure the through-hole DIP-4 package matches the PCB footprint design.
Selection Notes
Select this component when AC input isolation is needed with a simple transistor output. Consider the 70V output voltage rating for low-voltage signal switching. Evaluate the current transfer ratio sensitivity for marginal LED drive conditions. Compare rise/fall times against system speed requirements.
Part Context
The SFH620A series belongs to Isocom's line of standard optocouplers designed as industry-standard replacements. These devices are widely used in industrial control, telecommunications, and computer peripheral interfaces. The series offers robust performance in digital control systems for motors and servo machines.
Replacement Considerations
Potential substitutes include models from other manufacturers offering similar AC-input transistor output configurations. Verify pinout compatibility and electrical parameter equivalence before substitution.
