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Free shipping 2 pcs/lot Hi-Link HLK-PM03 220v 3.3V 3W AC DC mini size isolated step down power supply module

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Welcome to our store.

We are Shenzhen Hi-Link Electronic co.,ltd, manufacturer of AC DC power module for ten years in China.

If you need samples, please place order here, we will ship to you soon. If you need more quantity, welcome to contact us directly, we will provide you preference price and best shipping method to you.

Choose us with high quality and favourable prices.

Product features:

1. The ultra-thin, subminiature

2. The full voltage input (90 ~ 265 vac)

3. Low ripple and low noise

4. Output overload short circuit protection function

5. High efficiency and power density

6. Product design to meet the EMC and safety testing requirements

7. Low power consumption, green environmental protection, no-load loss < 0.1 W

8.100% load test and aging

9. Meet the requirements of UL, CE,

10. The quality guarantee period of 1 years.

2. Environmental conditions

The name of the project

Technical indicators:Single bit

Working temperature: – 25-60 +degree

Storage temperature: + 80-40 -degree

Relative humidity: 5-95.%

The cooling way: Natural cooling

The atmospheric pressure: 80-106Kpa

The altitude :2000M or less


Vibration coefficient of 10 ~ 500 hz, 2 g10min. / 1 cycle, 60 min. Each along the X, Y, Z axes

3. The electrical characteristics

1. The input features (test) at room temperature.

The name of the project

The technical requirements:Single bit

The rated input voltage:90-245 VAc

The input voltage range:85-264 VAc

Maximum input current:≤ 0.2 A

Input surge current:10 A

Maximum input voltage:270VAc

Input soft start: 50

Efficiency of low input voltage: Vin = 110 vac, output with 69 or more %

High input voltage: Vin = 220 vac, output with 70 or more %

Long-term reliability:MTBF 100000 or more H.

No load rated output voltage: + 5 + / – 0.1 VDc

Full rated output voltage: + 5 + / – 0.2 VDc A

short time maximum output current: P 1000 ma

The maximum output current for a long time: P 600 ma

Voltage regulation: + / – 0.2 %

Load regulation: + / – 0.5 %

The output ripple and noise: (mVp – p) 50 or less

The rated input voltage and output load.With 20 MHZ bandwidth oscilloscope,

Load and 10 uF and 0.1 uF capacitance test. The MV

Switch machine overshoot

(rated input voltage, output and 10% load) 5 or less % VO

Output over-current protection

Output the maximum load of 150-200%

Output short circuit protection

Directly to the output of the normal short circuit, short circuit automatically resume normal work after removal

4.Our Company


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Buy IT Chenteck (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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