FFAF15U20DNTU

Diode Arrays Overview

The FFAF15U20DNTU is a dual common cathode ultrafast recovery power rectifier manufactured by onsemi, originally developed under Fairchild Semiconductor. It utilizes a TO-3PF through-hole package and provides an average forward current of 15 A at a case temperature of 100°C with a peak repetitive reverse voltage of 200 V. The device features a maximum instantaneous forward voltage of 1.2 V at 15 A and 25°C, alongside a non-repetitive peak surge current rating of 150 A. Electrical characteristics include a maximum reverse recovery time of 40 ns and a junction-to-case thermal resistance of 3.1 °C/W.

Diode Arrays Feature Summary

• Ultrafast recovery performance with soft reverse recovery characteristics
• Low forward voltage drop for improved efficiency
• High avalanche energy capability rated at 0.5 mJ

Diode Arrays Applications

• Power switching circuits
• Output rectifiers in power supplies
• Freewheeling diodes
• Switching mode power supply (SMPS)

Diode Arrays Procurement Notes

Verify the specific manufacturer origin, as the component was originally produced by Fairchild Semiconductor prior to its acquisition by onsemi. Confirm that the datasheet revision matches the required specifications for your design. Ensure compliance with the life support policy restrictions if the application involves critical systems. Check for any updated environmental compliance documentation regarding RoHS standards.

Diode Arrays Selection Notes

Select this component for applications requiring fast switching speeds and low conduction losses. The TO-3PF package offers robust mechanical stability and efficient heat dissipation for high-current scenarios. Consider the 200 V reverse voltage rating when designing circuits with potential voltage spikes. Evaluate the thermal management requirements based on the specified junction-to-case thermal resistance.

Diode Arrays Part Context

This component belongs to the FFAF series of ultrafast recovery power rectifiers. The 'DN' suffix indicates the TO-3PF package configuration, while 'TU' typically denotes tube packaging. The series is designed for medium-power applications where rapid switching and low reverse recovery charge are essential for system performance and efficiency.

Diode Arrays Replacement Considerations

FFAF15U20DN

Diode Arrays FAQ

What is the maximum avalanche energy rating?

The device has a maximum avalanche energy rating of 0.5 mJ.

How does the forward voltage change with temperature?

The maximum instantaneous forward voltage decreases from 1.2 V at 25°C to 1.0 V at 100°C case temperature.

What is the typical reverse recovery time?

The maximum reverse recovery time is 40 ns when tested at IF=15A and di/dt=200A/µs.