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Home > Power Supplies > DC Power Supplies > Switching Power Supplies

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48V DC 4.2A 200W Switching Power Supply

$67.58

Affordable price 200W switching power supply converts AC input to 48V DC at a rated current of 4.2A with short circuit, overl

SKU: CHN-SMPS-200-48

Free Shipping Worldwide

Delivery date: 6-12 days

Overview
Documents

Features

Universal AC input range selectable by a switch
Protections: short circuit, overload and overvoltage
Cooling by free air convection
LED indicator for power on
100% full load burn-in test
Low cost and high reliability

Specification

Model		CHN-S-200-48
Output	DC Voltage	48V
	Rated Current	4.2A
	Current Range	0 ~ 4.2A
	Rated Power	200W
	Ripple & Noise (Max.)(Note 2)	100mVp-p
	Voltage Adjust Range	43 ~ 53V
	Voltage Tolerance (Note 3)	±1.0%
	Line Regulation	±0.5%
	Load Regulation	±0.5%
	Setup, Rise, Holdup Time	100ms, 50ms, 20ms at full load
Input	Voltage Range	88 ~ 132VAC/176V~264VAC (selected by a switch) or 255 ~ 370VDC
	Frequency Range	47~63Hz
	Efficiency (Typ.)	87%
	AC Current (Typ.)	3.2A/115V AC 1.6A/230V AC
	Inrush Current (Typ.)	Cold start: 35A
	Leakage Current	<3.5mA/240V AC
Protection	Overload	105~150% rated output power Protection type: Shut down output voltage, re-power on to recover.
Protection	Overvoltage	55.2~64.8V Protection type: Shut down output voltage, re-power on to recover.
Environment	Working Temperature	-10 ~ +60℃
	Working Humidity	20~90% RH non-condensing
	Storage Temperature	-20~+85℃
	Storage Humidity	10~95% RH non-condensing
	Temperature Coefficient	±0.03%/℃ (0~50℃)
	Vibration	10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
Safety & EMC (Note 4)	Safety Standards	UL1012 Approved
	Withstand Voltage	I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
	Isolation Resistance	I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC/25℃/70% RH
	EMC Emission	Compliance to FCC Part 15 J conduction Class B
	EMC Immunity	Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024, light industry level, criteria A
Others	MTBF	≥286.7K hrs MIN. MIL-HDBK-217F (25℃)
	Dimension	19911050mm (LWH)
	Weight	0.8kg
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 (Unit: mm)

SMPS Power Supply Applications

Power Tools
Electric Saw, Drilling Machine, Ginder, Sand Blast Machine, Puching Machine, Weeding Machine, Air Compressor, etc.
Offices Devices
Computer, Printer, LCD Monitor, Scanning Machine, etc.
Electrics & Household Appliance
TV, VCRS, Radio, Dust Collector, Fan Lamp or LED Strip, Sewing Machine, Microwave Oven, Fridge/Freezr, Coffemarker, etc.
Industrial Equipemnt
Monitoring Equipment, Shipping, Vehicle, Metalhalide Lamp, Solar System, Wind Power Generation, etc.

Tips: How to lower ripple nose of switching power supply (SMPS)?

1. Strengthen the inductor and filtering of output capacitor

According to a formula about the switching power supply, current fluctuation in the inductor forms up an inverse relationship with the inductance. In addition, output ripples constitute inverse relationship with capacitance. Increase of inductance and output capacitance can reduce ripples, but this measure just plays a minor role.

2. Secondary smoothing means adding another LC filter

LC filter performs well in inhibiting noise ripples. To reduce ripples of SMPS power supply, users shall select appropriate inductors and capacitors to form up a filter circuit according to frequency of ripples to be removed.

3. Connect switching power supply output to LDO filter

It serves as an effective way to reduce the SMPS ripples and noises. This method can help users maintain a constant voltage without changing original feedback system, but it brings about highest costs and energy consumption.

4. Connect capacitor C or RC to diode in parallel

Values of capacitor C or RC connected to the diode in parallel can be determined only by repeated experiments. If the values are set in a false way, it may cause serious oscillating.

5. Diode post inductance (EMI filter)

It is a common way to curb high-frequency noise of the switching power supply. Users need to select appropriate inductors according to frequency of noise. This method can effectively inhibit noise, but it shall be noticed that the rated current of inductors must comply with actual demands.

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