Wall Power Adapters

120 Volt To 12V AC To DC Electrical Power Adapter 18W USA Type

120 Volt To 12V AC To DC Electrical Power Adapter 18W USA Type

120 Volt to 12V AC to DC electrical power adapter 18W version is one of our main products. The USA type passed UL and CUL certification with DoE VI compliance. Jinrui Energy provides AC DC power adapter from 5W to 150W with approvals of CE,GS,CB,FCC,UL,CUL,SAA,KC and PSE.

Product details

120 Volt to 12V AC to DC Electrical Power Adapter 18WUSAType

  

Products Features of 18W AC adapter 12V1.5A:

1. Latest design meets latest efficiency level Vl and COC tier 2;

2. 12V DC adapter1.5Acord output with North American AC plug input;

3. Compact design with competitive costs;

4. MBTF:50000H full load at25;

5. 2 years warranty.

 

Specifications of 12V1.5Aadapter:

Specifications

Item No.

KR-124A050350U

KR-124A090270U

KR-124A120200U

KR-124A240100U

OUTPUT

DC VOLTAGE

5V

9V

12V

24V

RATED CURRENT

3A

2.0

1.5A

0.75A

CURRENT RANGE

0~3

0~2.0A

0~1.5A

0~0.75A

RATED POWER

15W

18W

18W

184W

RIPPLE&NOISE(max)

150mVp-p

150mVp-p

150mVp-p

200mVp-p

LINE REGULATION

± 1%

± 1%

± 1%

± 1%

VOLTAGE TOLERANCE

± 5%

± 5%

± 5%

± 5%

SETUP TIME

1000ms@110VAC; 600ms@230VAC

RISE TIME

50ms@110VAC/230VAC

HOLD UP TIME

20ms@230VAC

INPUT

VOLTAGE RANGE

90~264VAC

FREQUENCY RANGE

47~63Hz

POWER FACTOR

PF>0.5

EFFICIENCY (Typ.)

77.6%

86.3%

86.2%

86.2%

AC CURRENCY

0.8A/110VAC, 0.4A/230VAC

INRUSH CURRENT

COLD START60A/230VAC

LEAKAGE CURRENT(max)

0.75mA / 230VAC

ENERGY CONSUMPTION

The consumption should be less than  0.1  Watt at normal input

INPUT PLUG TYPE

UL, VDE, BS, SAA, CCC and PSE are available

ENVIROMENT

WORKING TEMP.

0~+40

WORKING HUMIDITY

20%~90% RH non-condensing

STORAGE TEMP. HUMIDITY

-25~+80, 10%~95%RH

TEMP. COEFFICIENT

± 0.03% / (0~50)

VIBRATION

10~500Hz,2G10min./1cycle, period for 60min. each along X,Y,Z axes.

Safety & EMC

Safety Standards

Comply with  IEC60950, EN60335, UL60950

EMC Standards

Comply with EN55022 Class B / FCC Part 15

OTHERS

DIMENSION (mm)

72*43*29mm(L*W*H)

Remark

1.       All parameters are specified at 230VAC input, rated load2570% RH ambient;

2.       Ripple & noise are measured at 20MHz by using a12’’ twisted pair terminated with a 0.1uF &47uF capacitor;

3.       Tolerance: includes set up tolerance, line regulation and load regulation;

4.       Line regulation is measured from low line to high line from the rated load;

5.       The over temperature protection is the built in function of the control IC.

 

 

Drawing of the 12V1.5AElectrical adapter:


12v ac adapter

Output cord of the 12v ac adapter:

electrical adapters

FAQ for DC Power Adapters:

 

Q: What is the difference between a linear and a switching power supply?

 

A: Switch-mode power supplies (SMPS) are commonly used in wall wart and external brick style power supplies. The advantages SMPS have over linear power supplies is that they are significantly smaller, significantly more efficient, operate with much less heat, and are significantly lower cost to manufacture. Smaller, cheaper, and more efficient...what's not to like?

 

The disadvantage of SMPS is they have significantly more noise than linear power supplies. The best highest technology SMPS have peak-to-peak ripple (noise) roughly equal to the most basic of linear power supplies. But ripple is not the only noise SMPS produce. In addition to producing dirtier power they also radiate inductive noise that can be picked up by analog cables and components and they dump noise onto the common AC ground. The inductive noise and ground noise SMPS produce contaminate any component in physical proximity and any component that is plugged into the same AC circuit.

 

Also, when compared to high-performance linear power supplies, SMPS have very slow dynamic response. When reproducing music, slower power supplies distort dynamic passages, mask micro-details and micro-dynamics, and distorting the time and tune. When reproducing video, slower power supplies make colors appear washed out, blur micro-details, and cause motion to be less fluid.

 

 

Q: During the operation of a power supply, there is some leakage current on the case. Is this normal? Will this leakage current hurt human body?

 

A: Due to the requirement of EMI, there will be some Y capacitors between line and neutral to the FG (case) to improve EMC. These Y capacitors will cause some leakage current flow from line or neutral to the case (normally case will be connected to earth ground). For example, IEC-60950-1 requires that this current should be less than 3.5mA for IT equipment, so basically the leakage current you find on the case will not hurt human body. Proper connection to Earth ground will solve the leakage current problem.Jinrui Energy Technology is one of the professional 120 volt to 12v ac to dc electrical power adapter 18w usa type manufacturers and suppliers. We have been dedicated to technology switching power supplies' field for many years. With customized service offered in our factory, we warmly welcome you to buy or wholesale competitive price bulk equipment with us.
Related Products
Feedback