80CNQ035SMS2

Overview

The SMC Diode Solutions 80CNQ035SMS2 is a Schottky rectifier module featuring a center-tap configuration with one pair of common cathodes. It operates with a maximum DC blocking voltage of 35 V and provides an average rectified forward current of 40 A per leg, totaling 80 A per device. The component utilizes the PRM2-SM package style and supports junction temperatures ranging from -55°C to +150°C. Electrical characteristics include a typical reverse current of 0.2 mA at rated voltage and 25°C, with a maximum thermal resistance of 0.5 °C/W per leg.

Feature Summary

• Center tap module design for high frequency operation
• Very low forward voltage drop for improved efficiency
• Guard ring structure for enhanced ruggedness and long term reliability
• High purity epoxy encapsulation providing mechanical strength and moisture resistance

Applications

• Switching power supplies
• DC-DC converters
• Free-wheeling diodes
• Reverse battery protection circuits

Procurement Notes

Verify the specific ordering suffix SMS2 to confirm terminal finish specifications. The datasheet indicates that this suffix corresponds to pure tin dipped terminals with a height of 6-8 mm, distinct from standard nickel-plated variants. Ensure compatibility with mounting torque requirements, which range from 40 to 58 Kg-cm. Confirm the package style matches the PRM2-SM dimensions before integration into the assembly process.

Selection Notes

Select this component when a center-tapped Schottky rectifier is required for applications demanding low forward voltage drop and high surge current capability. The 35 V rating suits low-voltage power conversion systems. Consider the PRM2-SM package for its low profile and high current handling. Verify thermal management needs against the specified junction-to-case thermal resistance values for both per-leg and per-package configurations.

Part Context

This part belongs to the 80CNQ series of Schottky rectifiers manufactured by SMC Diode Solutions. The series includes various voltage ratings such as 35 V, 40 V, and 45 V, housed in different package styles including PRM2, PRM2-SL, and PRM2-SM. These modules are designed for robust performance in industrial and commercial power electronics environments.

Replacement Considerations

Compatible substitutes within the same series include the 80CNQ035SM (standard nickel-plated terminals) and the 80CNQ035S2 (pure tin dipped terminals). When replacing, ensure the new part matches the required terminal finish and package dimensions to maintain mechanical and electrical compatibility.