CDLL254

Current Regulation - Diodes, Transistors Overview

The CDLL254 is a current regulator diode manufactured by Microchip Technology, housed in a surface-mount DO-213AB (MELF) glass package. It provides a regulated current of 8.25 mA with a maximum reverse voltage rating of 60 V. The component supports a power dissipation of 500 mW and operates within an extended temperature range from -65°C to +175°C. Designed for stable current control in compact electronic circuits, it utilizes a single-diode configuration suitable for automated SMD/SMT assembly processes.

Current Regulation - Diodes, Transistors Feature Summary

• Provides constant current regulation at 8.25 mA
• Supports high reverse voltage up to 60 V
• Utilizes robust glass MELF (DO-213AB) packaging
• Operates reliably across extreme temperatures from -65°C to +175°C

Current Regulation - Diodes, Transistors Applications

• Constant current sources for LED driving
• Biasing circuits for semiconductor devices
• Current limiting protection in sensitive electronics

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific suffix designation when ordering, as variants such as CDLL254/TR indicate reel packaging while others may be bulk. Confirm that the required operating current matches the fixed 8.25 mA specification, as this parameter is not adjustable. Ensure the selected package variant aligns with the intended surface-mount assembly process and thermal management requirements of the final design.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a fixed current source is required rather than a fixed voltage reference. The 60 V reverse voltage rating allows for flexibility in circuit topology compared to lower-voltage Zener diodes. Consider the 500 mW power dissipation limit to ensure adequate thermal headroom. The wide temperature range makes it suitable for industrial or automotive environments where standard commercial parts may fail.

Current Regulation - Diodes, Transistors Part Context

This device belongs to the CDLL series of current regulator diodes produced by Microchip Technology. These components are designed to replace traditional resistor-based current limiting solutions, offering superior stability against voltage fluctuations and temperature variations. The series is widely used in applications requiring precise current control without complex active circuitry.

Current Regulation - Diodes, Transistors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Microchip cross-reference tools or datasheets for verified equivalents.