No Load Power Consumption:	100mW (Max)
Cord Length:	4.7' (1.45m)
Input Connector:	IEC 320-C14
Approvals:	CB, CE, DEMKO, UL
Size / Dimension:	3.76" L x 2.13" W x 1.22" H (95.5mm x 54.0mm x 31.0mm)
Output Connector:	Barrel Plug, 2.5mm I.D. x 5.5mm O.D. x 9.5mm
Operating Temperature:	-20°C ~ 50°C
Efficiency:	Level VI
Applications:	Medical
Polarization:	Positive Center
Series:	ME40
Power (Watts):	41W
Current - Output (Max):	3.4A
Voltage - Output:	12V
Voltage - Input:	90 ~ 264 VAC
Input Type:	Cord (Sold Separately)
Form:	Desktop (Class I)
Region Utilized:	International
Part Status:	Active

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AC DC Desktop, Wall Adapters - ME40A1203F01 Application Field and Working Principle

The ME40A1203F01 is an AC DC Desktop, Wall Adapter, used for a wide variety of electrical applications. This adapter is highly efficient, offering an output power of 12V and 3A. It uses a switching regulator that operates over a wide input voltage range on a single fixed frequency oscillator that gives the unit a stable output voltage regardless of the input voltage.

Application Field of ME40A1203F01

The ME40A1203F01 is very versatile and can be used for a variety of applications, such as for powering a variety of electrical appliances. It can also be used to power laptop computers, tablets, and mobile phones. It is suitable for use in a residential or commercial environment, as it is UL, CB, CE certified and has an operating temperature of 0-40°C.It is also suitable for use in industrial environments and for powering industrial devices such as sensor systems, radio frequency equipment, and electromechanical equipment. It has an integrated EMC filter which assists in supplying regulated power to sensitive equipment to protect it from damage. This adapter has an onboard over voltage protection that helps to protect against sudden or sustained power overshoots.

Work Principle of ME40A1203F01

The ME40A1203F01 operates by taking an AC input voltage and converting it to a DC output voltage. It has an onboard step-down circuit which reduces the AC input voltage to the desired output voltage. The output voltage is proportional to the input voltage, with a maximum of 12V.The AC input voltage is converted to DC by using a switching regulator, which is a specialized power device that switches rapidly between power-on and power-off states to create a set of pulses. These pulses are then filtered using capacitors to create a DC output voltage. The output voltage is then controlled by varying the duty cycle of the switching regulator, which changes the output voltage proportionally.The adapter also has a secondary circuit consisting of a fuse, flyback transformer, and filter capacitors, which is used to limit the current drawn by any device connected to the adapter so as to protect it from sustained over current. This secondary circuit also helps to protect the adapter itself from damage due to prolonged over current conditions.

Conclusion

The ME40A1203F01 is an AC DC Desktop, Wall Adapter, designed to be highly efficient and provide a stable output voltage across a wide input voltage range. It is suitable for use in residential, commercial, and industrial applications, and is UL, CB, CE certified. It has an integrated EMC filter and an over voltage protection system to protect against sudden or sustained power overshoots. By using a switching regulator and secondary circuit, this adapter converts AC input voltage to DC output voltage, with a maximum of 12V, while protecting connected devices and the adapter itself.

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