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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
- Series：SFH618A-2
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：63% @ 1mA
- Current Transfer Ratio (Max)：125% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：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：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The SFH618A-2XSM is a single-channel optoisolator manufactured by Isocom Components 2004 LTD. It features a transistor output configuration housed in a 4-SMD surface-mount package. The device provides an isolation voltage of 5000Vrms between the input and output circuits. Key electrical parameters include a maximum forward voltage of 1.5V at an input current of 5mA, with a reverse current of 10μA. The output collector-emitter breakdown voltage (BVCEO) is specified at 55V. This component is designed for signal isolation applications requiring reliable performance in compact electronic designs.
Feature Summary
- Single-channel optical isolation using infrared technology
- Transistor output stage for digital signal switching
- Surface-mount packaging for automated assembly integration
Applications
- Logic-to-logic isolation in noisy environments
- Computer and peripheral device interface circuits
- Digital control systems for motors and servo machines
Procurement Notes
Verify that the specific suffix '2XSM' corresponds to the required surface-mount tape-and-reel packaging format rather than bulk or tray configurations. Confirm that the 4-SMD footprint matches the PCB land pattern design. Ensure compliance with RoHS directives and relevant safety certifications such as UL or VDE if required by the end-product specifications. Cross-reference pinout diagrams to prevent orientation errors during placement.
Selection Notes
Select this component when a low-profile surface-mount solution is required for galvanic isolation. The 5000Vrms rating suits general industrial and commercial isolation needs. Consider the 55V output breakdown voltage limits for load compatibility. Evaluate the 1.5V forward voltage drop against available drive logic levels. Compare physical dimensions against space-constrained board layouts before finalizing the design.
Part Context
This part belongs to the SFH618 series of phototransistor optocouplers from Isocom Components. The manufacturer specializes in replacing standard industry models with equivalent high-performance alternatives. The SFH618 series typically offers robust isolation characteristics suitable for various digital communication and control interfaces. Isocom provides these components with adherence to international safety standards and environmental regulations.
Replacement Considerations
Public confirmed substitute part numbers are not explicitly documented in the provided source material for direct cross-referencing. Users should consult official Isocom documentation or distributor databases for verified equivalents based on matching electrical and mechanical specifications.
