SFH6156-4X001T

Overview

The SFH6156-4X001T is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output and utilizes a surface-mount SMD-4 package. The device provides high isolation with a rated insulation voltage of 5300 Vrms. Key electrical parameters include a minimum collector-emitter breakdown voltage of 70 V, a maximum forward current of 60 mA, and a typical forward voltage of 1.65 V. The current transfer ratio ranges from 160% to 320%. Switching characteristics specify a rise time of 4 µs and a fall time of 15 µs. Power dissipation is limited to 150 mW, and the unit operates within a temperature range of -55°C to +100°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits via a 5300 Vrms dielectric barrier.
• Delivers high current transfer efficiency with a guaranteed CTR range of 160% to 320% for reliable signal transmission.
• Features a compact surface-mount SMD-4 footprint designed for automated assembly processes.

Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface isolation
• Power supply feedback loops

Procurement Notes

Verify that the specific suffix X001T corresponds to the required tape-and-reel packaging configuration for your manufacturing line. Confirm that the 5300 Vrms isolation rating meets the safety standards applicable to your target market. Ensure that the SMD-4 package dimensions align with your PCB footprint design rules. Check for any recent product change notifications regarding lead frame or material composition updates.

Selection Notes

Select this component when high current transfer ratio is critical for driving subsequent stages without additional amplification. The NPN phototransistor output is suitable for standard logic interfacing. Consider the 4 µs rise time for medium-speed digital applications. The wide operating temperature range supports deployment in harsh industrial environments where thermal stability is required.

Part Context

This part belongs to the SFH6156 series of transistor output optocouplers. The series offers various packaging options including tube and reel configurations. The SFH6156-4 variant specifically denotes the single-channel configuration with the associated pinout. The X001T suffix typically indicates specific reel packaging requirements distinct from the standard tube-packed SFH6156-4.

Replacement Considerations

The VO615A-1X001 is listed as a recommended alternative in distributor catalogs. However, it differs significantly in isolation voltage (5000 Vrms vs 5300 Vrms) and current transfer ratio (40-80% vs 160-320%). Verify if these parameter differences are acceptable for your specific circuit design before substitution.