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Product Detailed Parameters
- Description：OPTOISO 4.47KV 1CH TRANS 4-DIP
- 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：Through Hole
- Package / Case：4-DIP (0.400", 10.16mm)
- Supplier Device Package：4-DIP
- Grade：-
- Qualification：-
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Overview
The SFH617A-4XG is a single-channel transistor output optocoupler manufactured by Isocom Components 2004 LTD. It features an infrared LED coupled to an NPN silicon phototransistor in a 4-pin DIP package. Key electrical parameters include a maximum current transfer ratio of 320% at 10mA input, with typical rise and fall times of 4µs and 3µs respectively. The device supports a maximum output voltage of 70V and provides isolation capabilities.
Feature Summary
- Integrates an infrared light emitting diode with an NPN silicon phototransistor for signal transmission
- Provides high-speed switching performance with microsecond-level response times
- Offers electrical isolation between input and output circuits
Applications
- General purpose signal isolation
- Interface between logic circuits and power stages
- Switching applications requiring galvanic isolation
Procurement Notes
Verify the specific ordering suffix '4XG' against official manufacturer documentation to confirm pinout configuration and packaging type. Ensure compatibility with required isolation voltage ratings and thermal management constraints before procurement. Cross-reference datasheet specifications for current transfer ratio limits to validate circuit design requirements.
Selection Notes
Select this component when a single-channel transistor output is required for low-to-medium speed switching applications. Consider the 320% CTR specification for drive strength requirements. Evaluate the 70V output voltage limit against load conditions. Verify that the DIP-4 package fits the available PCB footprint and assembly process constraints.
Part Context
This part belongs to the SFH617A family of transistor output optocouplers from Isocom Components 2004 LTD. The family typically includes variants such as SFH617A-2X and SFH617A-4, sharing similar core optoelectronic characteristics but differing in packaging or specific commercial suffixes. These devices are designed for general-purpose isolation tasks.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Consult official manufacturer cross-reference guides for verified alternatives.
