CL40M35-AQ

Current Regulation - Diodes, Transistors Overview

The Diotec Semiconductor CL40M35-AQ is a surface-mount current limiting diode designed for constant current regulation. It operates within the CL15M35 to CL40M35 series, featuring a nominal regulator current of 40 mA with a maximum range of 34 mA to 46 mA at an anode-cathode voltage of 10 V. The device supports a peak operating voltage of 90 V and dissipates up to 1 W of power when mounted on a PCB with 25 mm² copper pads per terminal. It utilizes a DO-214AC (SMA) package and functions reliably across a junction temperature range of -50°C to +150°C.

Current Regulation - Diodes, Transistors Feature Summary

• Supports parallel operation to achieve higher current limits
• Includes an -AQ suffix indicating qualification in progress for AEC-Q101 automotive standards
• Compliant with RoHS directives excluding exemption 7a-I, REACH regulations, and conflict minerals requirements

Current Regulation - Diodes, Transistors Applications

• Low power LED drivers
• Battery chargers
• Constant current regulators for simple sensor circuits
• Power supply for microcontrollers using shunt regulators

Current Regulation - Diodes, Transistors Procurement Notes

Verify that the specific order includes the -AQ suffix to confirm the component's status regarding AEC-Q101 automotive qualification. Ensure the design accommodates the specified thermal resistance values by utilizing adequate copper pad areas on the printed circuit board. Confirm compliance with RoHS exemptions and REACH restrictions relevant to your manufacturing region before finalizing procurement.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a stable 40 mA current source is required in a compact SMA package. Consider parallel configurations if the application demands currents exceeding the single-device maximum rating of 46 mA. Verify that the system voltage remains below the 90 V peak operating limit and that the ambient temperature allows for proper heat dissipation within the 1 W power dissipation constraint.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the CL15M35 through CL40M35 family of SMD current limiting diodes manufactured by Diotec Semiconductor. These devices are engineered for commercial and industrial applications requiring reliable constant current regulation. The -AQ designation specifically denotes units undergoing or completed AEC-Q101 qualification, distinguishing them from standard commercial grade parts within the same electrical specification framework.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct substitutes include other CL40M35 variants from Diotec, such as the standard commercial grade CL40M35 without the -AQ suffix. Cross-manufacturer replacements must match the 40 mA nominal current, 90 V peak voltage, and DO-214AC package dimensions to ensure mechanical and electrical compatibility.