CD214B-S3K

Overview

The Bourns CD214B-S3K is a glass passivated rectifier chip diode in the CD214B-S3x series, housed in a DO-214AA (SMB) compatible package. It features a maximum average forward current of 3 A and a maximum repetitive peak reverse voltage of 800 V. The device supports an operating junction temperature range from -65 °C to +175 °C with a maximum peak forward surge current of 96 A. Electrical characteristics include a typical instantaneous forward voltage of 0.94 V at 3 A, a DC reverse current of 0.10 µA at rated voltage, and a typical junction capacitance of 23 pF.

Feature Summary

• Glass passivation provides protection against mechanical stress and moisture ingress.
• Low profile design minimizes footprint for compact PCB layouts.
• Halogen-free construction meets environmental compliance standards.
• UL 94V-0 rating ensures flame retardancy for safety applications.

Applications

• Switch Mode Power Supplies
• Portable equipment batteries
• High frequency rectification
• DC/DC Converters
• Telecommunications

Procurement Notes

Verify the specific suffix K corresponds to the required 800 V rating during procurement. Confirm RoHS and Halogen-Free status requirements align with project specifications. Check for updated datasheets as specifications are subject to change without notice. Ensure compatibility with standard pick-and-place equipment for automated assembly processes.

Selection Notes

Select this component when high reverse voltage blocking capability up to 800 V is required alongside a 3 A continuous current rating. The glass passivation offers robustness compared to non-passivated alternatives. Consider the thermal resistance values for heat dissipation planning in enclosed environments. Verify that the SMB package dimensions fit within the available board space constraints.

Part Context

This part belongs to the CD214B-S3x series of glass passivated rectifier chip diodes manufactured by Bourns Inc. The series covers voltage ratings from 200 V to 1000 V, sharing common physical dimensions and electrical parameters except for the breakdown voltage. The S3K variant specifically targets applications requiring higher voltage isolation than lower-rated siblings like the S3D or S3G.

Replacement Considerations

Compatible substitutes within the same series include CD214B-S3D (200 V), CD214B-S3G (400 V), CD214B-S3J (600 V), and CD214B-S3M (1000 V). Cross-brand replacements must match the DO-214AA package, 3 A current rating, and 800 V minimum reverse voltage specification.