CD5284

Current Regulation - Diodes, Transistors Overview

The CD5284 is a current-regulating diode manufactured by Microchip Technology, designed to maintain a stable output current despite variations in voltage or load conditions. It features a maximum anode-to-cathode voltage (Vak) rating of 100V and operates within an extended temperature range from -65°C to +175°C. The device regulates current to a maximum value of 264µA with a limiting voltage of 1V. Packaged in a surface-mount configuration on tape and reel, it belongs to the CD528 basic product family. This component is suitable for applications requiring precise low-current regulation under harsh environmental conditions.

Current Regulation - Diodes, Transistors Feature Summary

• Provides constant current regulation up to 264µA
• Supports high reverse voltage blocking up to 100V
• Operates reliably across extreme temperatures from -65°C to +175°C
• Available in compact surface-mount packaging

Current Regulation - Diodes, Transistors Applications

• Current limiting for LED drivers
• Biasing circuits for semiconductor sensors
• Protection against overcurrent in sensitive analog front-ends

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific package variant and suffix codes when ordering, as these may affect mechanical dimensions or thermal performance. Confirm that the 100V rating and 264µA current limit align with your circuit requirements. Check for any RoHS compliance declarations if required by your manufacturing standards. Ensure compatibility with your surface-mount assembly processes given the tape-and-reel delivery format.

Current Regulation - Diodes, Transistors Selection Notes

Select the CD5284 when a fixed, low-level current source is needed without active control loops. Its wide operating temperature range makes it suitable for industrial or automotive environments where standard silicon devices might fail. Consider the 1V drop voltage when calculating power dissipation. Verify that the 264µA maximum current meets the load requirements, as exceeding this may damage the device.

Current Regulation - Diodes, Transistors Part Context

The CD5284 is part of Microchip's CD528 series of current-regulating diodes. These components are passive two-terminal devices used primarily for current stabilization. Unlike active regulators, they require no external feedback networks. The series offers various current levels, with the CD5284 providing a relatively low regulation point ideal for precision biasing or protection roles in compact electronic designs.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct substitutes include other current-regulating diodes from manufacturers like Vishay or ON Semiconductor with similar 264µA ratings and 100V breakdown voltages. Ensure equivalent package types and temperature ranges are matched. Verify that the replacement device’s I-V characteristics closely match the original to avoid circuit instability.