FOD617A300

Overview

The FOD617A300 is a single-channel transistor output optoisolator manufactured by onsemi. It features a 4-DIP (PDIP-4) package with gull-wing leads for surface mount or through-hole compatibility. The device provides galvanic isolation with a rated insulation voltage of 5000 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a forward voltage of 1.65 V at 50 mA input. The typical rise and fall times are both 18 μs. The unit operates within a temperature range of -55°C to +110°C and has a power dissipation rating of 200 mW.

Feature Summary

• Provides high-voltage galvanic isolation between input and output circuits
• Utilizes an NPN phototransistor output stage for signal switching
• Designed for general-purpose digital signal transmission applications

Applications

• General-purpose digital signal isolation in industrial control systems
• Signal coupling in microprocessor-based logic circuits
• Isolation barriers in measurement and testing equipment

Procurement Notes

Verify component authenticity through authorized distributors due to the presence of obsolete status indicators in some marketplaces. Confirm package integrity upon receipt as the PDIP-4 form factor requires careful handling to prevent lead damage during installation. Ensure compliance with RoHS directives if required by specific project standards. Cross-reference datasheet revisions to confirm pinout consistency before finalizing design integration.

Selection Notes

Select this component when a standard transistor output optocoupler with 5000 Vrms isolation is required. Consider the 18 μs switching speed limitations for high-frequency applications where faster alternatives may be necessary. Evaluate the 70 V collector-emitter voltage rating against load requirements. Compare thermal performance within the specified operating temperature range to ensure reliability under varying environmental conditions.

Part Context

This part belongs to the FOD617 series of transistor output optoisolators from onsemi. The series is designed for general-purpose isolation tasks requiring moderate switching speeds. The 'A' suffix typically denotes specific Current Transfer Ratio (CTR) bins or packaging variations within the family. The '300' indicates tube packaging. This series serves as a foundational component for basic isolation needs in consumer and industrial electronics.

Replacement Considerations

Public sources indicate the FOD617A300 is obsolete and no longer manufactured. Verify availability through remaining stock channels or consider direct replacements such as the FOD617C3SD or FOD817C300, ensuring pinout and electrical specifications match the original design requirements.