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Product Detailed Parameters
- Description：OPTOISO 4.47KV 1CH TRANS 4-SMD
- Series：SFH617A
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：4470Vrms
- Current Transfer Ratio (Min)：160% @ 10mA
- Current Transfer Ratio (Max)：320% @ 10mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.65V (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 SFH617A-4XSM is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features an infrared LED input paired with an NPN silicon phototransistor output, housed in a compact 4-SMD surface-mount package. The device provides high isolation capability with a rated voltage of 4470Vrms between the input and output circuits. Key electrical parameters include a collector-emitter saturation voltage of 250mV and a maximum forward current of 60mA for the input side. The component operates within a temperature range of -30°C to 100°C, ensuring reliability in various electronic environments.
Feature Summary
- Integrates an infrared light emitting diode with an NPN silicon phototransistor for signal transmission.
- Provides galvanic isolation between input and output circuits using optical coupling technology.
- Designed for surface-mount assembly to facilitate automated PCB manufacturing processes.
Applications
- Logic-to-logic isolation in noisy industrial environments
- Line receiver circuits for data communication interfaces
- Digital control systems for motors and servo machines
Procurement Notes
Verify that the specific suffix '4XSM' corresponds to the required surface-mount package configuration and lead frame material. Confirm that the 4470Vrms isolation rating meets the safety requirements of the target application circuit. Ensure compatibility with standard reflow soldering profiles for 4-SMD components during assembly planning.
Selection Notes
Select this component when a small form factor is required for single-channel isolation applications. Consider the NPN phototransistor output type for sourcing current capabilities. Evaluate the thermal operating range limits against the expected ambient conditions of the final product enclosure.
Part Context
This part belongs to the SFH617A series of transistor output optocouplers from Isocom Components 2004 LTD. The series typically includes variants with different packaging options such as through-hole DIP and various SMD configurations. These devices are designed as industry-standard replacements for legacy optocoupler models used in general-purpose isolation tasks.
Replacement Considerations
Public confirmed substitute part numbers: VO617A-4 (Vishay Semiconductors). Verify pinout compatibility and isolation voltage ratings before substitution.
