SFH618A-5X016

Overview

The SFH618A-5X016 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output housed in a 4-pin PDIP through-hole package. The device provides high isolation with a rated insulation voltage of 5300 Vrms. Key electrical parameters include a current transfer ratio (CTR) ranging from 250% to 500%, a maximum collector-emitter voltage of 55 V, and a maximum collector current of 100 mA. The forward current is specified at 60 mA with a forward voltage of 1.5 V. Switching characteristics include a rise time of 3.5 µs and a fall time of 5 µs. Power dissipation is limited to 150 mW, and the operating temperature range spans from -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 CTR range of 250% to 500% for robust signal transmission.
• Features fast switching performance suitable for DC applications with defined rise and fall times.

Applications

• High-speed DC switching circuits
• General-purpose signal isolation
• Industrial control systems requiring galvanic isolation

Procurement Notes

Verify the specific suffix X016 corresponds to the required CTR bin (250-500%) and packaging format. Confirm that the 4-DIP through-hole package aligns with the target PCB layout. Ensure the 5300 Vrms isolation rating meets the safety requirements of the application environment. Cross-reference the manufacturer datasheet for any updates on RoHS compliance status or recommended soldering profiles.

Selection Notes

Select this component when high current transfer ratio and moderate speed are required for single-channel isolation. Compare against SFH618A-4X016 if lower CTR (160-320%) is acceptable. Consider VO618A variants if higher collector-emitter voltage (80 V) or extended temperature range (+110°C) is necessary. Evaluate power dissipation limits relative to thermal management constraints in the final assembly.

Part Context

This part belongs to the SFH618A series of transistor output optocouplers from Vishay. It shares the same physical footprint and basic electrical architecture with other variants like SFH618A-5 and SFH618A-4X016. The primary differentiator is the manufacturing binning for Current Transfer Ratio (CTR), ensuring consistent gain characteristics across production batches within the specified 250-500% range.

Replacement Considerations

SFH618A-5 is a direct functional equivalent with identical CTR specifications and package type. SFH618A-4X016 offers similar isolation but lower CTR (160-320%). VO618A-4X016 provides higher voltage ratings (80 V) and temperature tolerance but differs in switching speed and current capacity.