BY459X-1500,127

Overview

The BY459X-1500 is a glass-passivated double diffused silicon rectifier diode designed for high-voltage applications. It features fast forward recovery and low forward recovery voltage, making it suitable for HDTV receivers and multi-sync monitor horizontal deflection circuits. The device operates with a peak repetitive reverse voltage of 1500 V and supports peak forward currents up to 12 A at 48 kHz or 10 A at 82 kHz. It utilizes an SOD113 package with an isolated mounting tab.

Feature Summary

• Features fast switching capabilities with soft recovery characteristics
• Provides low forward voltage drop for efficient power handling
• Includes an electrically isolated mounting tab for heatsink integration
• Demonstrates high thermal cycling performance for reliability

Applications

• HDTV receiver horizontal deflection circuits
• Multi-sync monitor horizontal deflection circuits
• High-voltage damper diode applications

Procurement Notes

Verify the specific ordering suffix against official NXP documentation to confirm exact mechanical variations or packaging specifications. Ensure compatibility with existing thermal management designs due to the isolated tab requirement. Confirm that the SOD113 footprint matches the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring high-voltage isolation and fast recovery times in horizontal deflection stages. Consider the thermal resistance values when calculating heatsink requirements for sustained operation. Evaluate the peak current ratings against the specific line frequency and pulse width conditions of the application to ensure safe operating area compliance.

Part Context

This part belongs to the BY459X series of fast, high-voltage damper diodes manufactured by NXP Semiconductors (formerly Philips). These components are engineered specifically for demanding display technology applications where rapid switching and high voltage blocking are critical. The series maintains consistent electrical characteristics across variants while offering standardized packaging solutions.

Replacement Considerations

Consult official substitution lists for verified equivalents such as the BY459X-1500S. Verify pinout compatibility and thermal resistance parameters before implementing any alternative components in existing designs.