R1DA-151212/P

Current - Output (Max):	42mA, 42mA
Size / Dimension:	0.60" L x 0.42" W x 0.28" H (15.2mm x 10.7mm x 7.0mm)
Package / Case:	10-SMD Module, 7 Leads
Mounting Type:	Surface Mount
Efficiency:	80%
Operating Temperature:	-40°C ~ 100°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1kV
Power (Watts):	1W
Series:	ECONOLINE R1DA
Voltage - Output 3:	--
Voltage - Output 2:	12V
Voltage - Output 1:	12V
Voltage - Input (Max):	16.5V
Voltage - Input (Min):	13.5V
Number of Outputs:	2
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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Introduction
DC DC converters play a key role in the modern electronics industry. They are used to convert direct current (DC) electricity from one voltage or current source to another. R1DA-151212/P is a type of DC DC converter, targeting power supply, computer and communication applications. This paper will discuss the application field and working principle of R1DA-151212/P.

Application Field
R1DA-151212/P is used to convert DC power to desired voltage levels and convert voltage from one level to another. It can be widely used in many applications, such as:

• High frequency switching power supplies
• High efficiency low voltage DC-DC converters (e.g. for notebooks and mobile phones)
• Power converters
• Industrial instruments
• Switched capacitor regulators
• Power supplies for medical equipments and telecom equipments

Working Principle
R1DA-151212/P operates according to flyback topology, which is a type of switched-mode power supply. It works by transferring power from the input source to the output load in a cyclical manner. The main components of R1DA-151212/P are transformer, capacitors, diodes, and rectifier. The transformer is used to transform the input voltage to a desired output voltage. Then, the output voltage will be rectified by the rectifier. Finally, the rectified output voltage will be filtered by the capacitors to get a stable DC voltage.The operation process can be divided into five phases:

• Primary switch ON – The primary switch is turned on and the energy is stored in the transformer’s magnetic field.
• Primary switch OFF – The primary switch is turned off and the energy stored in the transformer is released to the output terminal.
• Diodes recovery – The output voltage is then rectified by the diode.
• Capacitor charging – The rectified voltage is filtered by the capacitor to get a stable DC voltage.
• Switching cycle complete – The switching cycle is completed and the system is back to its initial state.

Conclusion
In conclusion, R1DA-151212/P is a type of DC DC converter with wide application. Its working principle is based on the flyback topology, which uses components like transformer, capacitor, diodes and rectifier to convert the input power to desired voltage levels. This paper introduces the application field and working principle of R1DA-151212/P.

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