A170RN

Overview

The Powerex A170RN is a standard recovery rectifier diode designed for high-power applications. It features a maximum repetitive peak reverse voltage of 800 V and an average forward rectified current rating of 100 A. The device utilizes a DO-205AA (DO-8) chassis mount package with stud mounting for efficient thermal management. Key electrical characteristics include a maximum forward voltage drop of 1.3 V at 100 A and a maximum reverse leakage current of 20 mA at 800 V. The junction temperature range extends from -40°C to +200°C, ensuring reliability under demanding operating conditions.

Feature Summary

• High current handling capability with a 100 A average forward rectified current rating
• Robust voltage blocking performance supporting up to 800 V DC reverse voltage
• Extended thermal stability with a junction temperature range reaching 200°C
• Durable chassis mount construction in the DO-205AA package for secure installation

Applications

• Industrial power supply systems requiring high current rectification
• Motor drive circuits and variable frequency drives
• Welding equipment power stages
• Inverter and converter topologies in renewable energy systems

Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to confirm voltage ratings, as series variations exist. Ensure the procurement documentation explicitly states the 800 V rating to distinguish it from other variants within the A170 family. Confirm RoHS compliance status and packaging type directly with the supplier or authorized distributor prior to ordering.

Selection Notes

Select this component when system requirements demand a robust standard recovery diode capable of handling 100 A continuous current with 800 V blocking capability. The DO-205AA package is suitable for chassis mounting where mechanical stability and heat dissipation are critical. Evaluate thermal resistance parameters against the heatsink design to ensure junction temperatures remain within the specified 200°C limit during peak load operations.

Part Context

The A170RN belongs to the A170 series of high-power discrete semiconductors manufactured by Powerex Inc. This series is engineered for industrial-grade reliability and typically employs silicon planar technology. The components are widely utilized in heavy-duty power electronics where durability under high stress conditions is required. The DO-205AA form factor represents a standard industry footprint for stud-mounted power diodes.

Replacement Considerations

Cross-reference with other 800 V, 100 A stud-mount diodes from manufacturers such as Littelfuse or Vishay. Verify that replacement parts match the DO-205AA mechanical dimensions and thermal characteristics. Ensure the replacement diode meets or exceeds the 1.3 V forward voltage drop specification to maintain system efficiency.