FOD617D300

Overview

The FOD617D300 is a single-channel phototransistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output with a maximum collector-emitter voltage of 70 V and a collector current rating of 50 mA. The device provides 5000 Vrms isolation voltage between input and output. Key electrical parameters include a forward current of 50 mA, a typical forward voltage of 1.4 V, and a current transfer ratio ranging from 300% to 600%. Switching characteristics specify typical rise and fall times of 18 μs. The component operates within a temperature range of -55°C to +110°C and is housed in a surface-mount SMD-4 package.

Feature Summary

• Provides high-voltage electrical isolation via a 5000 Vrms dielectric barrier between the infrared LED input and the NPN phototransistor output.
• Delivers robust signal transmission with a wide current transfer ratio range suitable for reliable digital switching applications.
• Designed for extended operational stability across a broad industrial temperature spectrum.

Applications

• General-purpose signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic families
• Power supply feedback loops requiring galvanic isolation

Procurement Notes

Verify component authenticity through authorized distribution channels due to the prevalence of counterfeit electronic components. Confirm that the received parts match the specified SMD-4 package and onsemi branding. Check for any specific handling requirements related to electrostatic discharge protection during storage and assembly. Ensure compliance with relevant regional regulatory standards applicable to your final product integration.

Selection Notes

Select this component when a surface-mount solution is required for single-channel isolation with moderate speed requirements. The 18 μs switching time distinguishes it from faster logic-output variants. Consider the 5000 Vrms isolation rating for safety-critical applications. Evaluate the 300%-600% CTR range to ensure adequate drive capability for the connected load circuit under varying temperature conditions.

Part Context

This part belongs to the FOD617 series of transistor-output optocouplers. It shares functional similarities with through-hole variants like the FOD617D but utilizes a compact surface-mount footprint. The series is designed for general-purpose isolation tasks where cost-effectiveness and standard performance metrics are prioritized over high-speed data transmission capabilities found in other onsemi optocoupler families.

Replacement Considerations

Direct pin-compatible replacements may include other FOD617 series variants with different packaging options. Verify that substitute components maintain the same 5000 Vrms isolation rating and comparable current transfer ratio specifications to ensure circuit compatibility without redesign.