RP188-3-.47-QD

Overview

The Astrodyne TDI RP188-3-.47-QD is a high-performance, single-output DC-DC converter module designed for demanding industrial and commercial applications. It delivers a regulated output voltage of 47V with a maximum current capacity of 3.8A, providing a total power rating of approximately 179W. The unit features a wide input voltage range, accepting nominal inputs from 18V to 36V DC, which allows for flexible integration into various power distribution architectures. This isolated converter operates with high efficiency and includes comprehensive protection mechanisms such as over-voltage, over-current, and short-circuit protection to ensure reliable operation under transient conditions.

Feature Summary

• Provides stable, regulated DC output voltage suitable for sensitive electronic loads
• Features galvanic isolation between input and output circuits for safety
• Incorporates built-in protections against over-voltage, over-current, and short-circuit events
• Designed for high reliability in continuous duty cycle operations

Applications

• Industrial automation control systems
• Telecommunications infrastructure power supplies
• Medical equipment internal power distribution
• Test and measurement instrumentation

Procurement Notes

Verify the specific suffix codes on the datasheet to confirm pinout configuration and mounting style. Ensure input voltage specifications match your system's supply rails before integration. Confirm thermal management requirements based on ambient temperature and load conditions. Check for any required external components for soft-start or remote sense functionality if specified in the official documentation.

Selection Notes

Select this model when a fixed 47V output is required within the 180W power class. Consider the physical dimensions and mounting options available in the RP188 series. Evaluate the efficiency curves at your expected operating load to determine cooling needs. Compare input voltage ranges against other models in the series if wider input tolerance is necessary.

Part Context

This component belongs to the RP188 series of open-frame DC-DC converters from Astrodyne TDI. The series is known for compact form factors and high power density. Other variants in the lineup offer different output voltages and current ratings while maintaining similar footprint and protection features. The QD suffix typically denotes specific regulatory compliance or packaging details consistent with the manufacturer's naming convention.

Replacement Considerations

Direct replacements must match the 47V output and ~3.8A current rating. Verify that substitute modules support the same 18-36V input range. Ensure mechanical compatibility by comparing mounting hole patterns and overall dimensions. Confirm that electrical isolation voltage levels meet or exceed the original specification.