MJWI40 Series
40W DC-DC Converters
MJWI40 Series 40W DC-DC Converters
MJWI40 Series 40W DC-DC Converters
Features
  • Smallest Encapsulated 40W Converter
  • Ultra-compact 1"×1" Package
  • Ultra-high Power Density 93W/in³
  • Excellent Efficiency up to 93%
  • Ultra-wide 4:1 Input Voltage Range
  • Fully Regulated Output Voltage
  • I/O Isolation 1500 VDC
  • Operating Ambient Temp. Range -40℃ to +85℃
  • No Min. Load Requirement
  • Very Low No Load Power Consumption
  • Under-voltage, Overload/Temperature and Short Circuit Protection
  • Remote On/Off Control, Output Voltage Trim
  • Shielded Metal Case with Insulated Baseplate
  • UL/cUL/IEC/EN 62368-1 Safety Approval & CE Marking
OVERVIEW

Outstanding 40W DC-DC Converter Supplier

The MJWI40 series represents the smallest encapsulated 40W DC-DC isolated converters available, designed for compact, high-performance applications. With an ultra-compact 1"×1" package and an ultra-high power density of 93W/in³, these converters are optimized for efficiency and space-saving designs. They feature an ultra-wide 4:1 input voltage range, fully regulated output voltage, and deliver up to 93% efficiency. The series also offers I/O isolation rated at 1500 VDC and operates in extreme temperatures from -40℃ to +85℃ without a minimum load requirement.

Additional features include low no-load power consumption, comprehensive protections (under-voltage, overload, temperature, and short circuit), and convenient remote On/Off control with output voltage trim. For enhanced thermal management, the MJWI40 series also provides an optional heatsink, ensuring optimal heat dissipation and stable performance in more demanding environments. Housed in a shielded metal case with an insulated baseplate, the MJWI40 series meets UL/cUL/IEC/EN 62368-1 safety standards and bears CE marking.

These converters are ideal for applications such as server power supplies, communication equipment, and electric vehicle chargers, where high power requirements and limited space are critical considerations. The MJWI40 series provides a reliable, efficient, and space-optimized power solution for such demanding environments.
Specifications
Output Voltage Accuracy ±1.0% max.
Line Regulation ±0.2% max.
Load Regulation ±0.3 max.
Ripple & Noise
(0-20 MHz Bandwidth)		 5Vo 75mVp-p typ.
12Vo, 15Vo, ±12Vo,  ±15Vo 100mVp-p typ.
24Vo 150mVp-p typ.
48Vo, 54Vo 280mVp-p typ.
Efficiency Up to 93%
I/O Isolation Voltage 1500VDC min.
I/O Isolation Capacitance 1500pF typ.
Operating Ambient Temp. Range -40℃ to +85℃ (See Derating Curve)
Short Circuit Protection Continuous (Auto. Recovery)
Output Voltage Trim    ±10% max.
Remote ON/OFF Enable High
Case Material Metal With Non-Conductive Baseplate
Safety Approval UL/cUL 62368-1 recognition(UL certificate), IEC/EN 62368-1(CB-report)
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Comparison ECAD Model Number Output Power Input Voltage (VDC) Output Voltage (VDC) Output Current (mA) Efficiency Output Regulation I/O Isolation Package Type
Datasheet
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