MURP20040CTG

Overview

The MURP20040CTG is an ultrafast rectifier manufactured by onsemi, designed for high-efficiency power conversion applications. It features a 200-ampere average forward current rating and supports reverse voltage capabilities of 200, 400, or 600 volts, with the specific suffix indicating the voltage variant. The device utilizes PowerTAP II packaging to minimize thermal resistance and inductance. Key electrical characteristics include a maximum reverse recovery time of 35 nanoseconds and a low forward voltage drop, which reduces conduction losses. It operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• Ultrafast recovery characteristics enable high-frequency switching with minimal reverse recovery charge.
• PowerTAP II package design provides superior thermal dissipation and low parasitic inductance.
• High surge current capability ensures robustness against transient overload conditions.
• Low forward voltage drop contributes to improved overall system efficiency.

Applications

• High-frequency switch-mode power supplies (SMPS)
• Free-wheeling rectification in DC-DC converters
• Industrial motor drive systems
• Uninterruptible power supply (UPS) units

Procurement Notes

Verify the specific voltage code suffix (e.g., 20, 40, 60) corresponding to the required reverse blocking voltage level, as the base part number covers multiple variants. Confirm compliance with RoHS directives if restricted substances are a constraint. Ensure the ordering quantity matches the reel specifications provided by authorized distributors. Cross-reference the exact suffix with the manufacturer's official datasheet to avoid selecting an incorrect voltage rating.

Selection Notes

Select this component when high-speed switching and thermal management are critical. The PowerTAP II package is suitable for board-level mounting where space and heat dissipation are limiting factors. Compare the reverse recovery time and forward voltage drop against standard rectifiers to validate efficiency gains. Ensure the circuit's peak repetitive reverse voltage does not exceed the selected voltage variant's rating under all operating conditions.

Part Context

This component belongs to the MURP series of ultrafast rectifiers from onsemi, engineered for demanding power electronics environments. The series replaces older technologies by offering faster recovery times and better thermal performance. It is commonly used in modern power conversion designs requiring high reliability and compact form factors.

Replacement Considerations

Direct substitutes may include other PowerTAP II packages from different manufacturers with matching 200A ratings and identical pinouts. Verify that alternative parts meet the same 35ns reverse recovery time specification. Ensure the replacement maintains the same thermal resistance characteristics to prevent overheating in existing heatsink configurations.