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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)：63% @ 10mA
- Current Transfer Ratio (Max)：125% @ 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-2SM is a single-channel optoisolator manufactured by Isocom Components 2004 LTD. It features an NPN phototransistor output and provides 4470Vrms insulation voltage. The device operates within a temperature range of -55°C to +110°C. Key electrical parameters include a maximum collector-emitter voltage of 70V, a maximum collector current of 100mA, and a power dissipation of 150mW. The component utilizes a surface-mount 4-SMD package.
Feature Summary
- Integrates an infrared light emitting diode with an NPN silicon phototransistor for signal isolation
- Provides high-voltage electrical isolation between input and output circuits
- Designed for surface-mount assembly in compact electronic applications
Applications
- General-purpose signal isolation in industrial control systems
- Interface circuits requiring galvanic separation
- Low-speed digital communication channels
Procurement Notes
Verify the specific manufacturer designation, as Vishay Semiconductors produces the base SFH617A series. Confirm that the Isocom Components variant meets the required insulation voltage specifications, which may differ from the standard Vishay datasheet values. Ensure the surface-mount package type matches the design requirements before ordering.
Selection Notes
Select this component when a surface-mount solution is required for single-channel isolation. Compare the 4470Vrms insulation rating against system safety standards. Evaluate the NPN phototransistor output characteristics against load requirements. Consider the operating temperature range for environmental compatibility.
Part Context
This part belongs to the SFH617A family of transistor-output optocouplers. While Vishay manufactures the original SFH617A series, Isocom Components distributes equivalent or compatible versions under similar naming conventions. The family typically includes through-hole variants such as the SFH617A-2 and SFH617A-4, which share similar functional principles but differ in packaging and specific electrical ratings.
Replacement Considerations
The VO617A-2 is listed as a recommended alternative for the through-hole SFH617A-2 variant. Verify pinout compatibility and insulation voltage ratings when substituting other single-channel NPN phototransistor optocouplers.
