PU1DMH

Single Diodes Overview

The PU1DMH is a 1A ultra-fast recovery rectifier from Taiwan Semiconductor, housed in an SMA surface-mount package. It features a 200V repetitive peak reverse voltage and a maximum average forward rectified current of 1A. Key electrical parameters include a 25ns typical reverse recovery time, 900mV maximum forward voltage at rated current, and 1uA maximum reverse leakage current. The device supports a surge current of 28A and operates within a junction temperature range of -55°C to +175°C. It is AEC-Q101 qualified for automotive reliability.

Single Diodes Feature Summary

• Ultra-fast recovery characteristics with 25ns switching speed
• Automotive grade qualification under AEC-Q101 standards
• Planar passivation technology for enhanced stability
• High thermal performance supporting up to 175°C operation

Single Diodes Applications

• Automotive power supply circuits
• High-frequency DC-DC converters
• Free-wheeling diode applications in motor drives
• General purpose high-speed rectification

Single Diodes Procurement Notes

Verify the specific suffix against official datasheets to confirm voltage rating and qualification status. Ensure the ordering code matches the required AEC-Q101 automotive grade if intended for vehicle electronics. Cross-reference the manufacturer part number with distributor listings to avoid confusion with similar SMA packages or different voltage variants within the same series.

Single Diodes Selection Notes

Select this component when a 200V blocking capability is required alongside fast switching speeds. The SMA package offers a compact footprint suitable for space-constrained designs. Consider the 1A current rating and thermal dissipation capabilities relative to the expected load conditions. Verify compatibility with high-temperature environments given the 175°C junction limit.

Single Diodes Part Context

This device belongs to the PU1 series of ultra-fast recovery rectifiers manufactured by Taiwan Semiconductor. The series includes variants with different reverse voltage ratings, such as 100V and 200V options. These components are designed for surface-mount assembly, providing a balance between performance and board space efficiency for modern electronic systems.

Single Diodes Replacement Considerations

Check for direct substitutes within the same SMA package family that share identical 1A current and 200V voltage ratings. Verify that alternative parts meet the same AEC-Q101 qualification requirements if automotive use is specified. Ensure reverse recovery time and forward voltage specifications are comparable to maintain circuit performance.