1-5W Non-isolated AC/DC Converter in "305RAC”Family——LSxx-K3BxxSS

1-5W Non-isolated AC/DC Converter in "305RAC”Family——LSxx-K3BxxSS.jpg


Aiming at miniaturization, the lightweight, non-isolation trend of IoT and smart home applications, MORNSUN launched ultra-light and compact non-isolated AC/DC power supplies with 1~5W in the "305RAC (reliable under all conditions)" family——LSxx-K3BxxSS. The series with 5W is only 16.13 * 15.10 * 9.50mm, and it also features low consumption of 0.1W and high efficiency of 77%.



1)Miniaturization and lightweight

The dimensions are only 16.13 * 15.10 * 9.50mm, and the weight is only 4.5g, which greatly improves the space utilization for customers.

2)Wide input voltage:85 - 305VAC/70-430VDC

This series meets global voltage requirements such as 110/220/277VAC standard voltages;

3)All-round periphery

The series shoots customer's troubles with the all-matching core design with a flexible peripheral circuit. By adopting different peripheral circuits, the series can be used in almost all applications including low-cost consumer products and even high-end power for extremely harsh outdoor environments.

4)Low consumption and high-efficiency

a. No-load consumption as low as 0.1W;

b. The efficiency by up to 77%.


It is widely used in the non-isolated applications of IoT and smart homes, such as motor control, relay control, microcontroller, etc.

1-5W Non-isolated AC/DC Converter in "305RAC”Family——LSxx-K3BxxSS.jpg


Ultra-wide input voltage:85 - 305VAC/ 70 - 430VDC

Operating temperature range:-40℃ to +85℃

Compact size, open frame

The efficiency of up to 77%

Industrial-grade design

Flexible selection of EMC additional circuits, simplify customer PCB layout

Output short circuit, over-current protection

EN62368 safety approval

* For detailed information please refer to the related datasheet, product news is for reference only.
Please refer to the technical manual for specific product parameters:

Series Power(W) Vin(VAC) Vin(VDC) Vout(VDC) Iout No. of Outputs Package Dimension(mm) Footprint & 3D Markings Datasheet Sample Buy
LS01-K3B05SS 1 85-305 70-430 5 200mA 1 SIP 16.13*15.10*9.50
LS03-K3B12SS 3 85-305 70-430 12 250mA 1 SIP 16.13*15.10*9.50
LS05-K3B12SS 4 85-305 70-430 12 330mA 1 SIP 16.13*15.10*9.50
LS05-K3B15SS 5 85-305 70-430 15 330mA 1 SIP 16.13*15.10*9.50
LS05-K3B18SS 5 85-305 70-430 18 280mA 1 SIP 16.13*15.10*9.50

Buy Online




Please fill out correctly!


This website uses cookies able to make your time on our site a lot less crummy and a much richer experience. For more information, please visit our Privacy Policy.

Privacy Policy


MORNSUN distributors for part ""
Distributor Stock Qty  
NAC Group, Inc. 0 Buy online
Edge Electronics 0 Buy online
DigiKey Electronics - Buy online

Find the right contact in your region

Local distributorsContact us
  • File Name