ISOM8118DFHR

Transistor, Photovoltaic Output Optoisolators Overview

The ISOM8118DFHR is a single-channel transistor output optocoupler manufactured by Texas Instruments. It features a phototransistor output and operates in an SOIC-4 surface-mount package. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a forward current of 50 mA, and a typical forward voltage of 1.5 V. The device provides an insulation voltage of 3750 Vrms with a power dissipation rating of 290 mW. Current transfer ratio ranges from 195% to 710%, while rise and fall times are specified at 3.2 µs and 4 µs respectively. Operating temperatures span from -55°C to +125°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using a phototransistor configuration.
• Designed for AC input applications with a single channel configuration.
• Capable of operating within an extended industrial temperature range.

Transistor, Photovoltaic Output Optoisolators Applications

• AC input signal detection
• Industrial control systems
• General-purpose isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix DFHR against the manufacturer's official datasheet to confirm pinout and packaging details. Ensure compliance with RoHS requirements as indicated in the component specifications. Confirm moisture sensitivity levels prior to storage and handling procedures. Cross-reference the part number with authorized distributors to validate authenticity and supply chain integrity.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output optocoupler is required for AC input applications. Consider the 3750 Vrms insulation voltage for isolation needs. Evaluate the 80 V collector-emitter voltage and 50 mA current ratings against circuit load requirements. Verify that the SOIC-4 package fits the available PCB space and thermal management constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

This component belongs to the ISOM8118 series of transistor output optocouplers from Texas Instruments. The series includes variants such as ISOM8118DFGRQ1 and ISOM8118DFSR, which may offer different insulation voltages or automotive qualifications. The ISOM8118DFHR specifically targets general industrial applications without AEC-Q100 automotive certification.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

ISOM8118DFGRQ1: Automotive qualified variant with similar electrical characteristics but AEC-Q100 certification. ISOM8118DFSR: Variant offering higher insulation voltage of 5000 Vrms compared to the 3750 Vrms of the DFHR model.