12volt 2a switching power adapter ac dc 12v 2 amp power supply

1.Product parameters:

Model No.	Input (Vac)	output (Vdc)	Current (Amp)	power (Watt)	Tol.	R&N	Effi.
SMT-012-024VP	100-240V	12Vdc	2Amp	24W	±4%	100mV	>82%
SMT-024-024VP	100-240V	24Vdc	1Amp	24W	±4%	100mV	>82%

2. INPUT REQUIREMENTS:

2.1 Operating range: 90-264VAC

2.2 Rated Input Voltage :100-240VAC

2.3 Input Frequency Range: 50/60Hz +/-3Hz

2.4 Input Current:500mA max

3.OUTPUT REQUIREMENTS:

3.1  Output Voltage and Current

Output	Output Regulation(V)		No Load	Rating Load (A)
Voltage(V)	Minimum	Maximum	Current(A)	Continuous Current(A)
24V	11.4V	12.6V	0A	1.0A

3.2   Output Voltage Regulation

The total output voltage regulation shall be +/-5%,including the effects of line voltage variations,load current,ripple and noise,and the AC component of the load current.

3.3   Output Voltage Ripple

The switching power supply shall not exceed the following limits in the indicated voltage for 60Hz or 50Hz ripple,switching frequency ripple and noise measured with 20MHz width.

Ripple and Noise:50/60Hz Ripple + Switching Ripple and Noise

Output	Ripple
0-1.0A	<200mV

Ripple and Noise are measured at the end of output cables which are added a

0.1uF(104) Ceramic capacitor and a 22uF Electrolytic capacitor.

4. EFFICIENCY:

When 230VAC line input voltage (100-240 VAC),the efficiency shall be >80% at rating load.

5. DIELECTRIC STRENGTH (Hi-Pot) TEST:

Finished product withstands with AC3000Vrms/50Hz,5mA max,

primary to secondary, 1 minute for type test,1 second for production test.

6. INSULATION RESISTANCE:

Primary to secondary: 10MΩ min at 500VDC.

7. PROTECTION:

7.1   Short Circuit Protection

If short circuit occurs,all the output should be protected. After the fault, the adapter automatically recovers.

7.2  Over Shoot

The Output over shoot at turn-on shall not exceed 10% of normal voltage value with or without the load connected.

7.3  Start-up time

The start-up time is less than 2 second.

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8.ENVIRONMENTAL CONDITIONS:

8.1  Temperature

Operating temperature:  0℃  to  +40℃

Storage temperature :  -20℃ to  +60℃

8.2  Humidity

Relative humidity:≤95%

8.3  Operating Ambient Altitude

Altitude:0-3000m

8.4  Operating at the lower temperature

At -0℃,with the rated voltage 100-240Vac charged to the primary and unloaded and full load on the secondary 8 hours, no abnormality in electric and mechanical characteristic, after 2 hours recovery  at the room  temperature.

8.5 Operating at the high temperature

At +40℃,with the rated voltage 100-240Vac charged to the primary and unloaded and full Load on the secondary 8 hours, no abnormality in electric and mechanical characteristic, after 2 hours recovery  at the room  temperature.

9. COOLING:

Cooling shall be with natural convection cooling.

10.Burn-in

The burn-in test will be performed at least 4 hours at centigrade

degrees under full load Condition.

11.Referenced standard:

11.1  EMI Standards

Reference  EN50082-1,EN55022-B,GB-17625.1-2003, GB-9254-1998

11.2  Safety Standards

The adapter shall be meet certified with the following safety standards.

EN60950-1,GB4943-2001

12.  MOUNTING CONNECTORS:

12.1  AC Input Connector

Spec :2Pin  (CE PIN)

12.2  DC Output Cable

Wire : (Optional)  24AWG*2C  L=1200mm Color: Black

Plug : (Optional) 5.5 x 2.1x 10mm  Turning fork line

13.  MECHANICAL FEATURES:

13.1  Dimension(Size)

Length: 75mm

Width: 42mm

Height: 30mm

13.2  Weight

The Power Supply unit : 79±10g

13.3  Vibration and shock

No Evidence of any mechanical or functional damage after the vibration and shock testing.

Test conditions		Acceptance Criteria
Frequency	10-55Hz	Nominal functional test should be satisfied after the test
Sweep	For each axis(X,Y,Z)
Displacement	0.15mm
Periodicity	10

13.4  Drop test

After Dropping from a hight  of   100  cm onto a wooden floor , Dropping at  6  sides  totally,  NO breakage should be happened in the test piece.

13.5  Bending Test

Fix the power supply and its plug, apply a load of 200g to the other end, turn the cable by +/-60℃ carry out this process 1000 times, at the rate of 20 times per minutes. No abnormality in mechanical and electrical Characteristic and disconnection within 30% after the test.

14 .  DIAGRAM DATA:( See to attach the diagram)

14.1. APPEARANCE DRAWING:(Unit:mm)

14.2. NAME PLATE: (Unit:mm)

NOTE:  MATERIAL:POLYESTER COATIONG:0.10+/-0.03mm

14.3. DIMENSION OF OUTPUT PLUG & DC CORD:(Unit:mm)

Remarks:

1) 24AWG*2C  L=1200mm Color: Black

2) PLUG:5.5 x 2.1 x 10mm  Turning fork line

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