CD4150

Overview

The CD4150 is a small signal switching diode manufactured by Microchip Technology, designed for computer and signal applications. It features a surface mount die configuration with a peak reverse voltage of 50 V and a maximum forward current of 200 mA. The device supports a surge current of 4 A and exhibits a fast recovery time of 4 ns. Electrical characteristics include a forward voltage of 1 V at rated current and a reverse leakage current of 100 nA. The component operates within a temperature range of -65 °C to +175 °C.

Feature Summary

• Surface mount die construction suitable for automated assembly processes
• Fast switching capability with 4 ns recovery time for high-speed signal applications
• Wide thermal operating range extending up to +175 °C

Applications

• Computer logic circuits
• High-speed signal switching
• General purpose rectification in compact designs

Procurement Notes

Verify the specific package variant and tape/reel specifications when ordering, as surface mount dies often require specialized handling equipment. Confirm compliance requirements such as RoHS status directly with the manufacturer or authorized distributors, as regulatory markings may vary by production batch. Ensure that the intended application environment remains within the specified -65 °C to +175 °C operational temperature limits to maintain device reliability and performance standards.

Selection Notes

Select the CD4150 for designs requiring a robust silicon switching diode in a minimal footprint. Its 50 V reverse voltage rating provides adequate margin for low-voltage digital systems. The 200 mA continuous forward current capacity supports moderate load requirements. Consider the surface mount die format for space-constrained printed circuit board layouts where traditional leaded packages are unsuitable.

Part Context

This component belongs to Microchip Technology's line of general-purpose and switching diodes. It complements through-hole variants like the 1N4150-1 by offering a comparable electrical profile in a surface mount die form factor. The product series targets applications demanding reliable signal integrity and fast response times in consumer and industrial electronics.

Replacement Considerations

The 1N4150-1 serves as a functional equivalent with identical electrical ratings but utilizes a DO-35 through-hole package instead of a surface mount die. Designers must account for significant differences in physical mounting requirements and PCB layout constraints when substituting between these form factors.