BY329X-1500,127

Overview

The BY329X-1500 is a glass-passivated double diffused PIN rectifier diode designed for high-voltage applications. It features a peak repetitive reverse voltage of 1500 V and a maximum forward current of 6 A at frequencies up to 70 kHz. The device exhibits a low forward voltage drop, with VF ≤ 1.35 V at 6.5 A and Tj = 125 °C. Reverse recovery time (trr) ranges from 130 ns to 230 ns depending on the suffix variant. It includes an isolated mounting tab capable of withstanding 2500 V RMS isolation voltage.

Feature Summary

• Fast switching capability with soft recovery characteristics
• High thermal cycling performance suitable for demanding environments
• Electrically isolated mounting tab for secure heatsink attachment

Applications

• TV receivers horizontal deflection circuits
• PC monitor power supply units
• General-purpose high-voltage rectification

Procurement Notes

Verify the specific suffix (1500 vs 1500S) against design requirements, as it dictates reverse recovery timing parameters. Confirm package compatibility with SOD113 footprint dimensions. Ensure operating junction temperatures remain within the -40 °C to 150 °C range to maintain specified electrical characteristics and reliability standards defined in the product specification.

Selection Notes

Select this component when designing circuits requiring high blocking voltage combined with fast recovery speeds. The isolated tab simplifies thermal management by allowing direct mounting to grounded heatsinks without additional insulators. Consider the specific trr requirements of the target application frequency to choose between the standard or faster variants available within the series.

Part Context

This part belongs to the BY329X series of fast, high-voltage damper diodes manufactured originally by Philips Semiconductors. These components are engineered specifically for flyback and deflection applications where rapid switching and high voltage tolerance are critical. The series utilizes advanced double-diffused PIN technology to achieve superior performance compared to standard rectifiers.

Replacement Considerations

• BY329X-1500S

FAQ

What is the isolation voltage rating for the mounting tab?

The device supports an R.M.S. isolation voltage of 2500 V from both terminals to the external heatsink.

How does the suffix affect the electrical specifications?

The suffix indicates variations in reverse recovery time (trr) and charge (Qs), with the '1500S' variant offering faster recovery characteristics than the standard '1500' version.