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The CD214B-S2K is a glass passivated rectifier chip diode from the CD214B-S2x series, manufactured by Bourns Inc. It operates within a DO-214AA (SMB) compatible package and supports a maximum average forward current of 2 A with a peak surge capability of 50 A. The device provides a maximum repetitive peak reverse voltage of 800 V. Electrical characteristics include a typical instantaneous forward voltage of 0.96 V at rated current and a DC reverse current of 5 µA at full reverse voltage. Junction capacitance is typically 14 pF. The component functions reliably across an operating junction temperature range of -65 °C to +175 °C.
Verify that the specific order matches the required 800 V reverse voltage rating indicated by the 'K' suffix in the part number. Confirm compliance with RoHS and Halogen-free requirements if environmental specifications are mandatory for the assembly process. Ensure the procurement quantity aligns with standard tape and reel packaging formats.
Select this component when a high-voltage rectification solution is needed in a surface-mount SMB footprint. The 800 V rating distinguishes it from lower voltage variants like the S2D or S2G. Consider the thermal resistance parameters and derating curves if the application involves elevated ambient temperatures or continuous high-current loads.
This part belongs to the CD214B-S2x family of glass passivated rectifiers designed for miniaturization trends in electronics. The series offers various voltage ratings from 200 V to 1000 V within the same physical package to simplify inventory management. The CD214B-S2K specifically addresses applications requiring robust protection against higher reverse voltages while maintaining a small board footprint.
Compatible substitutes within the same series include CD214B-S2J (600 V) and CD214B-S2M (1000 V). These parts share identical mechanical dimensions and electrical characteristics except for the maximum repetitive peak reverse voltage rating.