Current - Output (Max):	2.5A
Approvals:	CE
Load Regulation:	1%
Line Regulation:	1%
Size / Dimension:	2.09" L x 2.00" W x 0.98" H (53.0mm x 51.0mm x 25.00mm)
Package / Case:	4-DIP Module
Mounting Type:	Through Hole
Efficiency:	81%
Operating Temperature:	-20°C ~ 80°C (With Derating)
Features:	IP Ratings, Universal Input
Applications:	Household Appliances, ITE (Commercial), Medical
Power (Watts):	13W
Series:	RACM18-ER
Voltage - Output 4:	--
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	5V
Voltage - Input:	90 ~ 264 VAC
Number of Outputs:	1
Moisture Sensitivity Level (MSL):	--
Type:	Enclosed
Lead Free Status / RoHS Status:	--
Part Status:	Active

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AC DC Converters

AC DC converters are essential components of power-related electronic systems. They convert the AC voltage that is fed into the system to the DC power required by the system, in order to power the system and its internal components. The RACM18-05SER is a type of AC DC converter that is widely used in various applications. This article will discuss the application field and working principle of this converter.The RACM18-05SER converter is an AC DC converter designed to convert AC input voltage into DC output voltage, with peak efficiency up to 94.8%. It can handle up to 18A input current and 5V output voltage with a ripple of less than 1V. This converter is most commonly used to power LED lighting systems, security systems, communication equipment and motor drives.The working principle of the RACM18-05SER converter is based on the flyback topology, whereby the input voltage is converted to DC power through the use of a transformer core. The transformer core is used to generate a high frequency alternating current (AC) signal. The alternating current is then converted back to a DC signal through a rectifying diode. The output voltage is then regulated using an integrated voltage regulator, which is linked to the input voltage.The RACM18-05SER converter features an adjustable switching frequency of up to 300kHz, which allows for efficient current conversion and power savings. It also features an over-voltage and over-current protection circuit to protect against surges and overloads. Additionally, it has built-in multi-level short circuit protection to prevent damage to the converter during operation.The RACM18-05SER also features an auto restart to ensure reliable operation even after a power outage. Furthermore, the converter has built-in polarity protection, which ensures the correct direction of DC power delivery. The converter is also designed with a high input for a wide range of input voltages, which allows the converter to be used in a wide range of applications.In conclusion, the RACM18-05SER converter is an AC DC converter that provides an efficient and reliable power conversion solution. It is widely used in LED lighting, security systems, communication equipment, and motor drive systems. Its built-in features of auto restart, over-voltage, over-current, and short-circuit protection ensure reliable operation. The adjustable switching frequency and wide input voltage range also provide great versatility for a variety of applications.

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