24V 2A SMPS Adapter

Prototyping and Engineering Tips from Robogears

• Calculating Power Overhead: When selecting an adapter for a 24V motor or LED project, always ensure your total load does not exceed 1.6A (80% of the 2A rating) for continuous use. This "overhead" prevents the adapter from overheating and significantly extends its operational life.

• Dealing with Inductive Kickback: If you are using this adapter to power 24V Solenoids or Relays, always use a Flyback Diode (like 1N4007) across the inductive load. This prevents high-voltage spikes from traveling back into the adapter and damaging its sensitive regulator circuitry.

• The Voltage Drop Factor: If your project requires a long DC cable (over 3 meters), you may experience a voltage drop. To compensate, use a thicker gauge wire (18AWG or 20AWG) for the extension to ensure your device receives the full 24V.

• Connector Fitment: The standard 5.5mm barrel jack comes in two internal pin sizes: 2.1mm and 2.5mm. This adapter is usually compatible with both, but if you experience intermittent power, ensure the spring contacts inside your device's female jack are clean and tight.

• Smoothing Large Loads: For applications involving high-torque 24V motors, add a large 1000uF Electrolytic Capacitor across the power input of your motor driver. This acts as a local energy reservoir, helping the adapter handle the sudden current "gulps" required when the motor starts under load.

Package Includes

• 1 x 24V 2A SMPS Adapter

Disclaimer: Indoor use only. Do not expose to moisture or rain. Always verify the voltage and polarity requirements of your device before connecting the adapter. If the adapter becomes excessively hot to the touch, disconnect it immediately and check for a short circuit in your project.