ISOM8118DFHRQ1

Transistor, Photovoltaic Output Optoisolators Overview

The ISOM8118DFHRQ1 is an automotive-grade, single-channel transistor-output optocoupler manufactured by Texas Instruments. It features a phototransistor output and operates within a wide temperature range of -40°C to +125°C. The device provides high isolation with an insulation voltage of 3750 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 50 mA, and a forward current of 50 mA. The typical current transfer ratio is 440%, ranging from 295% to 655%. It exhibits rise and fall times of 3.2 µs and 4 µs, respectively, with a power dissipation of 290 mW in an SOIC-4 package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• AEC-Q100 qualified for automotive applications
• High isolation voltage of 3750 Vrms
• Single-channel configuration with phototransistor output

Transistor, Photovoltaic Output Optoisolators Applications

• Automotive AC-input systems
• Industrial control circuits requiring galvanic isolation
• Signal transmission across isolated boundaries in harsh environments

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix DFHRQ1 confirms AEC-Q100 qualification and SOIC-4 packaging. Ensure the datasheet matches the required current transfer ratio range of 295% to 655%. Confirm moisture sensitivity level and reflow soldering profile compatibility for surface-mount assembly processes.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when automotive reliability and high isolation are required for AC-input signal transmission. Compare against ISOM8118DFHR if automotive qualification is not mandatory. Consider ISOM8110DFHRQ1 for DC-input applications due to different current transfer characteristics. Verify thermal management requirements given the 290 mW power dissipation limit.

Transistor, Photovoltaic Output Optoisolators Part Context

Part of the ISOM811x family of single-channel optocouplers designed for robust signal isolation. The Q1 suffix denotes automotive grade compliance, distinguishing it from the standard ISOM8118DFHR variant which lacks AEC-Q100 certification but shares similar electrical performance metrics.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

ISOM8118DFHR (non-automotive version)

Transistor, Photovoltaic Output Optoisolators FAQ

What is the insulation voltage rating?

The ISOM8118DFHRQ1 has an insulation voltage of 3750 Vrms.

Is this component suitable for automotive applications?

Yes, it is AEC-Q100 qualified for automotive use.