40W DC-DC Converters 1"×1" Package【MJWI40 Series】

The MJWI40 series is a high-performance 40W DC-DC converter designed for modern applications that demand exceptional power density and compact integration. As the smallest 40W DC-DC converter available in a 1x1 DC-DC converter form factor, this series delivers a breakthrough in space-saving design without compromising performance or reliability. With an ultra compact DC-DC converter footprint and high power density DC-DC converter architecture—up to 89W/in³—it is engineered for systems where board space is at a premium.

Featuring a 4:1 input voltage range, fully regulated outputs, and conversion efficiency up to 93%, the MJWI40 ultra compact DC-DC converter meets the needs of demanding industrial and embedded systems. It also provides reinforced I/O isolation at 1500VDC, supports operation from -40°C to +85°C, and eliminates the need for minimum load conditions.

This 1x1 DC-DC converter series includes low no-load power consumption, comprehensive protections (under-voltage, overload, over-temperature, and short-circuit), and advanced control features such as remote On/Off and output voltage trimming. For applications requiring enhanced heat management, an optional heatsink accessory is available, ensuring the high power density DC-DC converter maintains stable performance in thermally challenging environments.

Encapsulated in a shielded metal case with an insulated baseplate, the MJWI40 40W DC-DC converter complies with global safety certifications including UL/cUL/IEC/EN 62368-1 and CE marking, providing peace of mind in mission-critical deployments.

From communication infrastructure and server power systems to EV chargers and embedded controllers, the MJWI40 ultra compact DC-DC converter offers a reliable, efficient, and space-optimized power solution. It is the ideal 40W DC-DC converter for engineers and system designers seeking a compact, durable, and high-efficiency module to meet evolving application demands.