CD214B-B340LF

Overview

The CD214B-B340LF is a Schottky barrier rectifier chip diode manufactured by Bourns Inc. It features an average forward current of 3 A and a repetitive peak reverse voltage of 40 V. The device utilizes a SMB (DO-214AA) surface-mount package with a maximum forward voltage of 0.5 V at 3 A. Electrical characteristics include a typical junction capacitance of 250 pF and a maximum reverse current of 0.5 mA at rated voltage. The component supports a peak forward surge current of 100 A and operates within a junction temperature range of -55 °C to +125 °C.

Feature Summary

• Schottky barrier technology enables high-speed switching and low forward voltage drop for efficient power rectification.
• Compact SMB (DO-214AA) surface-mount package design minimizes PCB footprint while maintaining robust current handling capabilities.
• Flat configuration ensures stability during automated pick-and-place assembly processes.

Applications

• Rectification in portable communication devices
• Power supply circuits in computing equipment
• Voltage clamping in video equipment

Procurement Notes

Verify the specific ordering suffix to confirm termination material and compliance status, as variations exist within the series. Confirm availability status directly with the manufacturer or authorized distributors, as this component may be subject to discontinuation notices. Ensure that the selected variant matches the required voltage and current ratings for the target application before finalizing procurement orders.

Selection Notes

Select this component for applications requiring a 3 A average forward current and 40 V reverse voltage rating in a compact surface-mount form factor. Consider the thermal resistance and derating curves when designing for high ambient temperatures. Verify compatibility with standard SMD assembly equipment due to the flat package profile. Evaluate the low forward voltage characteristic for efficiency requirements in low-voltage power systems.

Part Context

This part belongs to the CD214B-B320 through B360 series of Schottky Barrier Rectifier Chip Diodes from Bourns. The series offers various voltage ratings from 20 V to 60 V while maintaining a consistent 3 A current capability. These diodes are designed for space-constrained electronics such as portable communications and computing devices, providing a smaller alternative to traditional rectifiers.

Replacement Considerations

The datasheet explicitly recommends the CD214B-B3xR Series as the replacement for new designs. Specifically, the CD214B-B340R is listed as the direct recommended substitute for the CD214B-B340 model.