TST20H45C

Diode Arrays Overview

The TST20H45C is a dual common cathode trench Schottky rectifier manufactured by Taiwan Semiconductor. It features a TO-220AB package with a repetitive peak reverse voltage (VRRM) of 45 V and a total forward current (IF) of 20 A, split as 10 A per diode. The device supports a surge peak forward current (IFSM) of 210 A at 8.3 ms. Key electrical parameters include a maximum forward voltage of 0.57 V at 10 A and 25°C, and a maximum reverse current of 47 mA at 125°C. The junction temperature range is -55°C to +150°C.

Diode Arrays Feature Summary

• Patented Trench Schottky technology for low power loss and high efficiency
• Excellent high temperature stability across the operating range
• High forward surge capability for robust performance under transient loads

Diode Arrays Applications

• Switching mode power supply (SMPS)
• Adapters
• Lighting application
• On-board DC/DC converter

Diode Arrays Procurement Notes

Verify the specific ordering code against the manufacturer's official documentation to ensure correct packaging configuration. The datasheet indicates a tube packing quantity of 50 units for the standard TST20H45C part number. Confirm that the component meets RoHS compliance and halogen-free requirements according to IEC 61249-2-21 standards prior to integration into final assemblies.

Diode Arrays Selection Notes

Select this component for applications requiring low forward voltage drop and fast switching characteristics in low-voltage environments. The dual common cathode configuration simplifies circuit design for synchronous rectification or polarity protection. Ensure thermal management strategies account for the junction-to-ambient thermal resistance when operating near maximum current ratings.

Diode Arrays Part Context

This device belongs to the family of high-efficiency Schottky rectifiers designed for power conversion systems. Utilizing trench technology, it offers improved performance over standard planar devices. The TO-220AB package provides mechanical stability and facilitates heat dissipation through direct mounting to a heatsink, supporting reliable operation in industrial and consumer electronics.

Diode Arrays Replacement Considerations

When substituting this component, verify that the replacement part matches the 45 V reverse voltage rating and 20 A total current capacity. Ensure the alternative device utilizes a compatible TO-220AB package and maintains similar thermal resistance characteristics to preserve the original system's cooling design.

Diode Arrays FAQ

What is the maximum junction temperature for the TST20H45C?

The maximum junction temperature (TJ MAX) for the TST20H45C is 150 °C.

Does the TST20H45C meet environmental compliance standards?

Yes, the TST20H45C is RoHS compliant and halogen-free according to IEC 61249-2-21.

What is the surge peak forward current rating per diode?

The surge peak forward current (IFSM) is 210 A for a duration of 8.3 ms and 620 A for 1.0 ms.