REC3.5-0512SRW/R10/A/CTRL

Current - Output (Max):	290mA
Control Features:	Enable, Active Low
Size / Dimension:	1.26" L x 0.80" W x 0.40" H (32.0mm x 20.3mm x 10.2mm)
Package / Case:	24-DIP Module, 7 Leads
Mounting Type:	Through Hole
Efficiency:	82%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, SCP
Applications:	ITE (Commercial), Medical
Voltage - Isolation:	10kV
Power (Watts):	3.5W
Series:	ECONOLINE REC3.5/R
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	12V
Voltage - Input (Max):	9V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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DC DC Converters: REC3.5-0512SRW/R10/A/CTRL Application Field and Working Principle

DC/DC converters are electronic devices enabling current or voltage conversion from one DC source to another DC source. REC3.5-0512SRW/R10/A/CTRL is a type of DC/DC converter which has been developed for critical long-term reliability and high efficiency yet economical applications. Its application field is suitable for automobile, communication, portable navigation, etc. This part consists of three components—a transformer, a rectifier, and a driver.First of all, the transformer is a magnetic device used to transfer energy from one circuit to another through a magnetic field. Transformer will step down the voltage as well as block the DC current. REC3.5-0512SRW/R10/A/CTRL has a toroidal core type with class F insulation. When the source voltage is applied to the primary winding, it will induces a voltage which is dependent on the turns ratio of the windings and is rectified by the rectangular filter circuit.The rectifier part of the converter is a circuit used to rectify AC voltage into DC voltage, it includes a pair of Diodes and a capacitor. The diodes of REC3.5-0512SRW/R10/A/CTRL are connected in a bridge pattern, and the filter capacitor which functions to reduce voltage ripple. When a full-wave rectifier is used, the sinusoidal source voltage will be rectified into a pulsed DC voltage.The driver is basically an amplifier that delivers the necessary wattage for a given application and the switch mode transformer of REC3.5-0512SRW/R10/A/CTRL, which control the ON/OFF state of the switching transistor. Generally, the driver of a DC/DC converter is operated by a switching frequency that can range from 50kHz to several MHz according to various requirements. When the switch transistor is in the ON state, the full-wave rectified output voltage from the rectifier will be connected to the primary coil of the transformer. On the other hand, when the switch transistor is in the OFF state, the output voltage from the rectifier will be disconnected from the primary coil of the transformer.In conclusion, REC3.5-0512SRW/R10/A/CTRL is an ideal DC/DC converter for critical long-term reliability and high efficiency yet economical applications. This type of DC/DC converter typically consists of three components—a transformer, a rectifier, and a driver. The transformer steps down the voltage as well as block the DC current. The rectifier part of the converter is a circuit used to rectify AC voltage into DC voltage, and the driver is basically an amplifier that delivers the necessary wattage for a given application.

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