Desktop Certificated safety 19V 3.5A 3.95A 4A 4.5A 5A laptop computer ac adapter Charger

  Desktop Certificated safety 19V 3.5A 3.95A 4A 4.5A 5A laptop computer ac adapter Charger

Input Voltage

Table 1: Lists the AC input operating voltage range. The power shall work normally and meet all electrical requirements throughout this range.

Table 1: AC Input Voltage Limitations

Input Frequency

Table 2: List the AC input operating frequency range. The power shall work normally and meet all electrical requirements throughout this range.

Table 2: AC Input Frequency Limitations

Efficiency

The power supply efficiency shall be greater than 80% under rated input voltage. It will be measured at the typical load and maximum load.

Output Specification

DC Voltage Regulation

DC Output voltage regulation limits

DC Output Current

Dielectric Strength Testing

Overshoot at turn-on/ turn-off

Any overshootat turn on or turn off shall be less than 150% of rated output voltage.


Over Current Protection


The power supply shall meet the limitation requirement as below table without any damage, the unit shall recover and function automatically after the protection is removed.

Over Current Protection limits

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About us

We are a professional adapters factory for more than 5 years

Quality control:our defectie products rate is 0.01%

Economically priced, exquisitely made Experience&responsible QC that you can reply on

Adequate supply capacity, Punctual delivery time

Best after sales service are provided

Factory show:

Aging machine:

Production line:

wave soldering machie:

Packing:

FAQ

Q1. Which certificate do you have?
CE,FCC,SAA,PSE,UL,etc.

Q2. What is your payment terms?
Our terms is T/T or Cash. Usual payment terms is T/T 30% as deposit, T/T 70% before shipment.

Q3. Do you inspect the finished products?
Yes, Each step of production and finished products will be carried out inspection strictly by our QC department before shipping. And you will got the inspection test report .

Q4. How do you ship the finished products?
By sea or as your demand.

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