The B2403S-1W with Power Modules SIP-4 RoHS manufactured by RLT is a 4-pin single-in-line power module. It is a surface mount device consisting of a 4-pin SIP package with a bipolar output configuration for DC-DC applications. It is designed to supply a constant voltage from 1.5V up to 12V with an up to 1.25A power rating. It can be used to power up a variety of different devices, such as microcontrollers, sensors, telecommunication devices, I/O peripherals, and more. The module is RoHS compliant and features over-current, over-voltage, and short circuit protection. The module also has wide input voltage range and a high-efficiency performance.