12V DC 4.2A 50W Switching Power Supply

$42.15

12V switching power supply converts AC to DC, working at rated current of 4.2A and rated power of 50W. It has short circuit and overload protection, making it high reliabiity in the household appliance and industrial equipment.

SKU: ATO-SMPS-50-12

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Delivery date: 6-12 days

Overview

Features

Universal AC input/Full range
Short circuit, overload and overvoltage protection
Cooling by free air convection
100% full load burn-in test
High reliability and wide range of applications

Specification

Basics	Model		ATO-S-50-12
	Dimension		1599738mm (LWH)
	Weight		0.51kg
Output	DC Voltage		12V
	Rated Current		4.2A
	Current Range		0~4.2A
	Rated Power		50W
	Ripple & Noise (max.)( Note 2)		120mVp-p
	Voltage Adjust Range		10.8~13.2V
	Voltage Tolerance (Note 3)		±1.0%
	Line Regulation		±0.5%
	Load Regulation		±0.5%
	Setup, Rise, Holdup time		300ms, 50ms, 80ms /230VAC 800ms, 50ms, 12ms/115VAC at full load
Input	Voltage Range		85 ~ 264V AC or 120 ~ 370V DC
	Frequency Range		47~63Hz
	Efficiency (Typ.)		76%
	AC Current (Typ.)		2A/115V AC 1A/230V AC
	Inrush Current (Typ.)		Cold start, 20A/115V AC; 40A/230V AC
	Leakage Current		<3.5mA / 240V AC
Protection	Overload		105~150% rated output power
			Protection type: Hiccup mode, recovering automatically after fault condition is removed.
Safety & EMC	Safety Standards		Approved by Ul1012, UL60950-1, TUV EN60950-1, CCC GB4943
	Withstand Voltage		I/P-O/P: 1.5KV AC I/P-FG: 1.5KV AC O/P-FG: 0.5KV AC
	Isolation Resistance		I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500V DC/ 25°C / 70% RH
	EMC Emission		Compliance to EN55022 (CISPR22) Class B, EN61000-3-2, -3
	EMC Immunity		Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024, light industry level, criteria A
Environment	Working Temperature		-10 ~ +60°C (Refer to output load derating curve)
	Working Humidity		20~90% RH (non-condensing)
	Storage	Temperature	-20~+85°C
		Humidity	10~95% RH (non-condensing)
	Temperature Coefficient		±0.03%/°C (0~50°C)
	Vibration		10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
Note	1. All parameters NOT specially mentioned are measured at 230V AC input, rated load and 25°C of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3. Tolerance includes set up tolerance, line regulation and load regulation. 4. The switching power supply is considered a component which will be installed into final equipment. Please make sure that the final equipment still meets EMC directives.

Dimensions

Block Diagram

Derating Curve & Static Characteristics

Tips: Types of switching power supply
Switching power supply is produced in DC and AC types. The DC type operates on basis of DC/DC convertors. In other words, categorization of DC switching power supply depends on that of DC/DC convertors.
DC/DC convertors are categorized into two types by the standard of whether there is electric isolation between input and output voltage. Those with electric isolation are categorized as isolated DC/DC convertors and those without electric isolation are categorized as non-isolated DC/DC convertors.
AC/DC conversion means converting alternating current into direct current. Its power flow proves to be bidirectional. Power flow borne by power supply flow is called rectification and that borne by returning power supply flow is called active inversion. It can be categorized into half-wave circuit and full-wave circuit according to the wring mode, classified into single phase circuit, three-phase circuit or multi-phase circuit according to the number of phases, or divided into one quadrant circuit, two quadrant circuit, three quadrant circuit and four quadrant circuit according to the operational quadrant.

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