RAC04-3.3SC

Series:	POWERLINE RAC04-C
Part Status:	Discontinued at Digi-Key
Lead Free Status / RoHS Status:	--
Type:	Enclosed
Moisture Sensitivity Level (MSL):	--
Number of Outputs:	1
Voltage - Input:	80 ~ 264 VAC
Voltage - Output 1:	3.3V
Voltage - Output 2:	--
Voltage - Output 3:	--
Voltage - Output 4:	--
Current - Output (Max):	1.2A
Power (Watts):	4W
Applications:	ITE (Commercial)
Features:	OCP, SCP
Operating Temperature:	-25°C ~ 85°C (With Derating)
Efficiency:	67%
Mounting Type:	Through Hole
Package / Case:	16-DIP Module, 5 Leads
Size / Dimension:	1.49" L x 0.94" W x 0.65" H (37.8mm x 23.9mm x 16.4mm)
Line Regulation:	±0.5%
Load Regulation:	±1.5%
Approvals:	CE, cULus
Weight:	0.066 lb (29.94g)

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Overview
The RAC0-3.3SC is a type of AC-DC converter that is designed to provide reliable, uninterruptible power supply (UPS) in applications such as consumer electronics, industrial automation, telecom, test and monitoring systems, and medical equipment. The RAC0-3.3SC features advanced control algorithms, high efficiency, low noise, and a wide input and output voltage range. It can also accommodate a wide range of applications, from industrial and commercial to aircraft and defense systems.
Design and features
The RAC0-3.3SC is a single-phase, two-stage AC-DC converter with an integrated step-down chopper for continuous operation up to 60 Hz. The device is designed to provide consistent, reliable power from an AC source to various electronic loads. It features a wide input voltage range from 85 VAC to 250 VAC, and an isolated output voltage range from 8 VDC to 24 VDC. The device offers a wide operating temperature range of-40°C to +105°C and has a built-in thermal shutdown and over-voltage protection. The device also includes a soft start feature which eliminates glitches and bus dips during start-up. Its advanced digital control algorithms provide accurate tracking and precise power delivery.
Working principle
The RAC0-3.3SC operates by converting the input AC voltage into DC current. It uses a rectifier, usually a bridge rectifier, to convert AC to DC. The output current is then stepped down by a chopper to the desired DC current. The output voltage can also be trimmed to optimize the power delivery.The device uses a custom-built, high-efficiency switching power supply module that performs the AC-DC conversion. It is designed with advanced control algorithms to ensure the highest power conversion efficiency and precise power delivery. The device also includes protection against overloads, over-voltage, and thermal shutdown.
Conclusion
The RAC04-3.3SC AC-DC converter is an efficient, reliable, and cost-effective device designed to provide uninterrupted power supply for various applications. It features a wide input and output voltage range and advanced control algorithms for precise power delivery. The device also offers a range of integrated protection features, making it a suitable choice for applications in consumer electronics, industrial automation, telecom, test and monitoring systems, and medical equipment.

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