SFH617A-2X017T

Overview

The SFH617A-2X017T is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output housed in a 4-SMD,鸥翼 (gull-wing) surface-mount package. The device provides electrical isolation with a rated insulation voltage of 5300 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80 V and a maximum collector current of 50 mA. The typical forward voltage is 1.35 V at a maximum DC forward current of 60 mA. The current transfer ratio ranges from 63% to 125% when tested at 5 mA input. Typical switching times are specified as 2 µs for rise time and 2 µs for fall time. The component operates within a temperature range of -55°C to +110°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using infrared LED and NPN phototransistor technology.
• Designed for surface-mount assembly with a compact 4-SMD gull-wing footprint suitable for automated placement.
• Offers fast signal transmission characteristics with typical rise and fall times of 2 microseconds.

Applications

• Signal isolation in industrial control systems
• Interface circuits for microprocessors and logic devices
• Power supply feedback loops requiring galvanic isolation

Procurement Notes

Verify the specific suffix X017T corresponds to the tape-and-reel packaging format required for your production line. Confirm that the 4-SMD gull-wing package dimensions align with your PCB footprint design rules. Ensure that the 5300 Vrms isolation rating meets the safety standards applicable to your end product's regulatory environment. Cross-reference the manufacturer datasheet for any updates on recommended soldering profiles to prevent thermal damage during assembly.

Selection Notes

Select this component when a surface-mount solution is preferred over through-hole variants like the SFH617A-2. Consider the 80 V collector-emitter voltage limit for low-voltage switching applications. Evaluate the 63-125% current transfer ratio range to ensure sufficient gain for your load requirements. Compare the 2 µs switching speed against system timing constraints to verify adequate performance for the intended signal frequency.

Part Context

This part belongs to the SFH617 series of transistor output optocouplers from Vishay. It serves as the surface-mount equivalent to the through-hole SFH617A-2, offering identical electrical performance in a different package form factor. The series is designed for general-purpose isolation tasks where space constraints favor SMD components. It shares functional similarities with other Vishay optocouplers but is distinguished by its specific mounting style and pin configuration.

Replacement Considerations

The VO617A-2X017T is listed as a recommended alternative with compatible electrical specifications. Verify pinout compatibility before substitution to ensure correct orientation of the LED and phototransistor terminals. Confirm that the replacement part maintains the same 5300 Vrms isolation rating and package dimensions for direct board replacement.