84CNQ040

Overview

The 84CNQ040 is a Schottky diode array manufactured by SMC Diode Solutions, configured as one pair of common cathodes. It features a maximum DC reverse voltage (Vr) of 40 V and an average rectified current (Io) of 40 A per diode. The device utilizes PRM2 packaging for chassis mounting and operates within a junction temperature range of -55°C to 125°C. Key electrical characteristics include a forward voltage drop of 1 V at 80 A and a reverse leakage current of 1.5 mA at 100 V.

Feature Summary

• Schottky technology ensures low forward voltage drop for improved efficiency
• High purity, high-temperature epoxy encapsulation provides enhanced mechanical strength
• Common cathode configuration simplifies circuit design in center-tap applications

Applications

• Center-tap power supply circuits
• Chassis-mounted rectification modules
• High-current DC power conversion systems

Procurement Notes

Verify the specific package variant and thermal management requirements against the official datasheet before ordering. Confirm that the chassis mounting interface matches the intended heat sink design. Ensure environmental compliance standards such as RoHS3 are accepted for the target application. Cross-reference the exact part number suffixes to avoid confusion with similar series components.

Selection Notes

Select this component for applications requiring robust chassis-mount solutions with moderate voltage ratings. The 40 A per diode rating suits high-power density designs where space constraints favor integrated arrays. Consider the 125°C junction temperature limit when designing thermal dissipation paths. Evaluate the forward voltage characteristics against system efficiency targets compared to alternative rectifier technologies.

Part Context

The 84CNQ040 belongs to SMC Diode Solutions' CNQ series of Schottky diode arrays. This series is designed for industrial and commercial power applications requiring reliable rectification. The PRM2 package offers a standardized footprint for easy integration into existing chassis-mounted designs. It complements other high-current discrete and module offerings from the manufacturer.

Replacement Considerations

Direct substitutes may include other 40 V, 40 A common cathode Schottky arrays in PRM2 packages. Verify pinout compatibility and thermal resistance specifications when considering alternatives. Ensure the replacement device meets or exceeds the original's reverse leakage and forward voltage requirements.