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ISOM8111DFHRQ1 is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is OPTOISO 3.75KV 1CH TRANS 4-SOIC. Review the specifications below when checking this part for your BOM.
The ISOM8111DFHRQ1 is a single-channel automotive-grade 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 an insulation voltage of 3750 Vrms and supports a maximum forward current of 50 mA with a typical forward voltage of 1.4 V. Key electrical parameters include a collector-emitter saturation voltage of 300 mV, a reverse voltage of 7 V, and a power dissipation of 290 mW. Current transfer ratio ranges from 120% to 270%, with rise and fall times of 3.2 µs and 4 µs respectively.
Verify the complete part number including suffixes such as DFHRQ1 to ensure correct packaging and qualification status. Confirm AEC-Q100 compliance requirements for your specific automotive application. Check humidity sensitivity levels and recommended storage conditions prior to assembly. Ensure compatibility with SOIC-4 surface mount mounting styles during PCB design.
Select this component when automotive reliability and high isolation are required for single-channel signal transmission. Compare current transfer ratio specifications against load requirements. Consider thermal management needs given the 290 mW power dissipation limit. Evaluate package constraints for SOIC-4 footprint availability in the target design.
This device belongs to the ISOM811x series of single-channel optocouplers from Texas Instruments. It is designed specifically for automotive environments requiring robust signal isolation. The series offers various insulation voltage ratings and input types to suit different system architectures.
The maximum operating temperature is +125°C.
Yes, it is AEC-Q100 qualified for automotive applications.
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