SFH618A-5X007T

Overview

The SFH618A-5X007T is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output and utilizes surface-mount (SMD) packaging in a 4-pin configuration. The device provides an insulation voltage of 5300 Vrms, ensuring robust electrical isolation between input and output circuits. Key electrical parameters include a forward current of 60 mA, a forward voltage of 1.5 V, and a maximum collector-emitter voltage of 55 V. The current transfer ratio ranges from 250% to 500%, with rise and fall times of 3.5 µs and 5 µs respectively. It operates within a temperature range of -55°C to +100°C.

Feature Summary

• Provides high-voltage electrical isolation via 5300 Vrms insulation rating
• Utilizes a compact surface-mount 4-pin package for automated assembly
• Features an NPN phototransistor output for digital signal transmission

Applications

• Industrial control systems requiring galvanic isolation
• Signal isolation in microprocessor-based circuits
• Power supply feedback loops for voltage regulation

Procurement Notes

Verify the specific suffix 'X007T' to confirm the tape-and-reel or cut-tape packaging format, as this affects handling and reflow soldering profiles. Ensure that the 4-SMD footprint matches the target PCB design constraints. Cross-reference the manufacturer datasheet for detailed thermal dissipation requirements and recommended soldering temperatures to prevent component damage during assembly.

Selection Notes

Select this component when high isolation voltage and moderate speed are required in a small form factor. The 250-500% current transfer ratio offers sufficient gain for driving logic inputs directly. Consider the 55 V collector-emitter voltage limit for low-voltage switching applications. Compare against through-hole variants if board space allows for larger packages with potentially different thermal characteristics.

Part Context

This part belongs to the SFH618A series of transistor output optocouplers from Vishay. The series is designed for general-purpose isolation applications where cost-effectiveness and reliability are prioritized. The '5' suffix typically denotes the specific current transfer ratio binning, while 'X007T' indicates the specific packaging variant. This family supports various industrial and consumer electronics standards.

Replacement Considerations

Direct substitutes may include other Vishay parts within the SFH618A series with matching CTR bins, such as SFH618A-4X007T, provided the lower CTR specification meets circuit requirements. Verify pinout compatibility and insulation voltage ratings before substitution. Alternative manufacturers should be evaluated based on identical package dimensions and electrical performance curves.