MBR2090CTG

Diode Arrays Overview

The onsemi MBR2090CTG is a Schottky barrier rectifier utilizing platinum barrier metal technology. It features a common cathode configuration with two diodes in a TO-220 package. The device supports a peak repetitive reverse voltage of 90 V and an average rectified forward current of 10 A per leg, totaling 20 A. Maximum instantaneous forward voltage ranges from 0.75 V to 0.95 V depending on temperature and current conditions. Peak non-repetitive surge current reaches 150 A, while the operating junction temperature extends up to 175°C.

Diode Arrays Feature Summary

• Platinum barrier metal construction for majority carrier conduction
• Guard-ring design provides stress protection
• Low stored charge characteristics reduce switching losses
• Epoxy casing meets UL 94 V-0 flammability rating

Diode Arrays Applications

• Switch-mode power supply output rectification
• Power management circuits
• Free-wheeling diode applications

Diode Arrays Procurement Notes

Verify the specific ordering suffix 'G' confirms lead-free and RoHS compliance status as documented by the manufacturer. Ensure the procurement channel sources directly from authorized distributors or the manufacturer to guarantee component authenticity and traceability. Confirm that the TO-220 package dimensions match the required mechanical constraints for the target assembly.

Diode Arrays Selection Notes

Select this component when low forward voltage drop and high efficiency are critical for thermal management in switch-mode applications. The 175°C junction temperature capability allows for robust operation in elevated ambient environments. Verify that the 90 V reverse voltage rating exceeds the maximum circuit transient voltages to ensure reliable blocking performance under all operating conditions.

Diode Arrays Part Context

This part belongs to the MBR20x0CT series of 20 Ampere Schottky barrier rectifiers manufactured by onsemi. The series includes variants with different reverse voltage ratings, specifically the MBR2080CTG (80 V) and MBR20100CTG (100 V). All devices share identical physical packaging and electrical current capabilities, differing primarily in their peak repetitive reverse voltage specifications.

Diode Arrays Replacement Considerations

Direct functional substitutes within the same family include the MBR2080CTG and MBR20100CTG, provided the circuit voltage requirements align with their respective 80 V and 100 V ratings. Cross-manufacturer replacements must be evaluated against the original 90 V rating and 20 A total current capacity.

Diode Arrays FAQ

What is the maximum thermal resistance from junction to case?

The maximum thermal resistance from junction to case is 2.0 °C/W.

How is the polarity indicated on the TO-220 package?

The marking diagram indicates pin 1 as Anode, pins 2 and 4 as Common Cathode, and pin 3 as the other Anode.

What is the maximum instantaneous reverse current at rated DC voltage?

The maximum instantaneous reverse current is 6.0 mA at TC = 125°C and 0.1 mA at TC = 25°C.