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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV 1CH TRANS 4-SMD
- Series：SFH618A-4
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：160% @ 1mA
- Current Transfer Ratio (Max)：320% @ 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-4XSM is a single-channel transistor output optocoupler manufactured by Isocom Components 2004 LTD. It features a surface-mount DIP-4 package and provides electrical isolation with a maximum output voltage of 55V. The device exhibits a typical rise time of 4µs and fall time of 3µs, with a current transfer ratio reaching up to 320% at an input current of 1mA. Designed for DC input applications, it offers robust signal transmission capabilities suitable for various electronic circuits requiring galvanic isolation.
Feature Summary
- Single-channel transistor output configuration for digital signal isolation
- Surface-mount packaging design facilitating automated assembly processes
- High current transfer ratio performance ensuring efficient signal coupling
Applications
- Logic-to-logic isolation in noisy environments
- Line receiver circuits
- Programmable current level sensors
Procurement Notes
Verify the specific suffix '4XSM' against official Isocom documentation to confirm the exact surface-mount package variant and tape-and-reel specifications. Ensure that the requested component matches the required insulation voltage ratings and pinout configuration for the target PCB layout. Cross-reference the manufacturer's latest datasheet to confirm compliance with relevant safety certifications such as UL or VDE before finalizing procurement orders.
Selection Notes
Select this component when a single-channel transistor output is required for low-voltage DC signal isolation. The surface-mount form factor is ideal for space-constrained designs. Consider the 55V collector-emitter breakdown voltage and the specific timing characteristics when designing for high-speed switching applications. Ensure the input forward voltage requirements align with the driving circuit's output capabilities.
Part Context
This part belongs to Isocom's portfolio of standard industry replacement optocouplers. The company specializes in providing alternatives to discontinued or widely used general-purpose photocopiers. The SFH series typically represents standard transistor output devices designed for general isolation tasks, maintaining compatibility with common interface standards found in industrial and consumer electronics.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Users should consult official cross-reference guides from Isocom Components 2004 LTD for verified equivalents.
