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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-1X is a single-channel optically coupled isolator featuring inverse parallel infrared LEDs and an NPN silicon phototransistor. It operates with a maximum forward current of ±50 mA and provides a minimum isolation voltage of 5300 Vrms. The device exhibits a typical rise time of 4 µs and fall time of 3 µs, with a collector-emitter breakdown voltage (BVCEO) of at least 70 V. Total power dissipation is rated at 200 mW.
Feature Summary
- AC input capability via inverse parallel LED configuration
- High-voltage electrical isolation up to 5300 Vrms
- NPN phototransistor output for digital switching
Applications
- Logic-to-logic isolation in noisy environments
- Line receiver circuits
- Computer and peripheral device interfaces
Procurement Notes
Verify the specific suffix designation against official Isocom documentation to confirm exact electrical tolerances and packaging specifications. Ensure compliance with UL and VDE safety standards required for the intended application. Cross-reference pinout configurations to guarantee compatibility with existing PCB layouts before finalizing procurement orders.
Selection Notes
Select this component when AC input drive is required without external rectification. The inverse parallel LED structure simplifies circuit design by accepting bipolar signals directly. Verify that the 70 V BVCEO rating meets the load voltage requirements of the target application to ensure reliable operation under all conditions.
Part Context
This part belongs to the SFH620A series, which includes variants such as SFH620A-3XG and SFH620A-2X. These devices are designed as industry-standard replacements for other manufacturers' optocouplers. The series maintains consistent physical dimensions and pinouts while offering specific electrical characteristics tailored for general-purpose isolation tasks.
Replacement Considerations
Direct substitutes include the SFH620A-3X and SFH620A-2X from the same manufacturer family. Verify pin compatibility and electrical parameters before swapping to ensure functional equivalence in the existing circuit design.
