SFH6186-5

Overview

The SFH6186-5 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductors. It features an NPN phototransistor output with a current transfer ratio ranging from 250% to 500%. The device provides high isolation voltage of 5300 Vrms and supports a maximum collector-emitter voltage of 55 V. It operates within a temperature range of -55°C to +100°C, with a power dissipation of 150 mW. Key electrical parameters include a forward current of 60 mA, forward voltage of 1.5 V, and saturation voltage of 400 mV. Rise and fall times are specified at 3.5 µs and 5 µs respectively.

Feature Summary

• High current transfer ratio for efficient signal transmission
• Low coupling capacitance to minimize interference
• High isolation voltage for safety in high-voltage environments

Applications

• General purpose digital signal isolation
• Microprocessor system interface circuits
• Power supply feedback loops

Procurement Notes

Verify the specific suffix (e.g., -5) confirms the required Current Transfer Ratio range of 250-500%. Confirm package type matches design requirements, as SMD-4 variants exist alongside tube packaging options. Ensure compliance with RoHS directives if applicable to the target market. Cross-reference datasheet revision dates for any potential parameter updates or pinout changes before finalizing procurement.

Selection Notes

Select this component when a high CTR is necessary to drive loads with minimal input current. The 5300 Vrms isolation rating suits applications requiring robust galvanic separation between low-voltage control logic and higher voltage power stages. Consider the 4-SMD package for surface mount assembly constraints. Evaluate thermal management needs given the 150 mW power dissipation limit in enclosed spaces.

Part Context

This part belongs to the SFH6186 series of transistor output optocouplers. It shares common electrical characteristics with other variants like SFH6186-3 and SFH6186-4, differing primarily in the graded Current Transfer Ratio bins. The series is designed for general-purpose isolation tasks, offering a balance of speed and isolation performance suitable for industrial and consumer electronics.

Replacement Considerations

SFH6186-3T offers similar isolation but lower CTR (100-200%). SFH6186-4T provides intermediate CTR (160-320%). Verify pin compatibility and CTR requirements when substituting.