19 July 2022

1-2W Fixed Input DC/DC Converters R3 Series have ALL launched, providing Multiple Selections for you


As one of the MORNSUN hot-sale product series, the Fixed Input DC/DC Converters R3 Series (hereafter called Fixed Input R3 Series) puts the performance, reliability, and process automation to a higher level, leading and promoting the development of micro power module technology.

Mornsun continuously completes the fixed input R3 series products in the 1-2W power range to meet the diverse needs of different users.

Up to now, these modules can be operated from 3.3V, 5V, 12V, 15V, and 24V and offer 3.3V, 5V, 12V, 15V, 24V, ±3.3V, ±5V, ±9V, ±12V, ±15V, ±24V outputs, as well as the various packages of SIP, DIP, SMD, can be selected on your needs.


Mornsun‘s fixed input R3 series adopts IC technology to solve mutual constraints defects between the three performances of continuous short-circuit protection, larger capacitive load, and the start-up capacity. Meanwhile, by upgrading these three functions, this series not only solves customers' inherent difficulties but also improves customer‘s experience.


Key Advantages

High parameter consistency in mass production, high reliability

By adopting a highly integrated circuit design, the R3 series has reduced the circuit components, simplified the design of the transformer, and efficiently improve the parameter consistency and reliability.

Large capacitive load and continuous short-circuit protection

With the capacitive load capacity significantly enhanced, the R3 series is suitable for applications with large capacitive loads. In addition, its continuous short-circuit protection effectively prevents the whole system crash due to the failure of the Secondary power supply and improves the reliability of the whole system.

High cost-effective with compatibility design

The fixed input R3 series features universal pins and can pin-to-pin all of the R2 products, making it a cost-effective solution that uses the upgrade products without replacing the PCB.


The R3 Series can be widely used in an all-digital electronic circuit, ordinary low-frequency analog circuit, relay drive circuit, a circuit of data exchange, etc.


Key Features

- High parameter consistency, high reliability

- Large capacitive load

- Continuous short-circuit protection

- Low no-load power consumption


Distribution of individual rows according to cases:


IB_LS-1WR3 - datasheet

IF_S-1WR3 - datasheet

IB_S-W75R3 – datasheet

A_S-1WR3 & B_LS-1WR3 – datasheet

B_S-1WR3 – datasheet

F_S-1WR3 & E_S-1WR3 – datasheet

A_S-2WR3 & B_S-2WR3 – datasheet

F_S-2WR3 & E_S-2WR3 – datasheet

IE_KS-1WR3 - datasheet


B_D-1WR3 – datasheet

F_N-1WR3 – datasheet

E_D-2WR3 & F_D-2WR3 – datasheet


FB0505XT-1WR3 – datasheet

A_XT-1WR3 – datasheet

B_XT-1WR3 – datasheet

B_XT-2WR3 – datasheet

F_XT-2WR3 – datasheet

E_XT-1WR3 – datasheet

F_XT-1WR3 – datasheet

IB_XT-W75R3 – datasheet

IF_XT-1WR3 – datasheet

1-2W Fixed Input DC/DC Converters R3 Series have ALL launched, providing Multiple Selections for you

Sales representatives CZ