RP188HSN-3-4.7-QD

Overview

The Astrodyne TDI RP188HSN-3-4.7-QD is a high-performance, single-phase AC input power rectifier module designed for demanding industrial and aerospace applications. It features a robust hermetically sealed metal housing that provides superior protection against harsh environmental conditions, including moisture, dust, and vibration. The unit integrates four individual rectifier elements within a compact form factor, ensuring reliable DC output conversion from AC sources. This model is engineered to deliver consistent electrical performance with low forward voltage drop and high reverse leakage resistance, making it suitable for critical power supply systems where durability and efficiency are paramount.

Feature Summary

• Hermetically sealed metal construction for enhanced environmental protection
• Single-phase AC input configuration with integrated rectification
• High reliability design suitable for aerospace and industrial standards
• Compact footprint optimized for space-constrained installations

Applications

• Aerospace power supply systems
• Industrial motor drives
• Telecommunications equipment
• Military electronic systems

Procurement Notes

Verify the specific pinout configuration and mounting hole dimensions against your system schematic before procurement. Ensure that the thermal management requirements align with your enclosure design, as hermetically sealed modules may require specific heat sinking strategies. Confirm that the input voltage range matches your AC source specifications to prevent overvoltage damage. Check for any required accessories such as mounting hardware or cooling fans that may not be included in the standard package.

Selection Notes

Select this model when a single-phase rectification solution is required in environments with strict size and weight constraints. Consider the RP188HSN series if hermetic sealing is necessary to protect against humidity or corrosive atmospheres. Evaluate the current rating and peak inverse voltage requirements to ensure the module can handle the maximum load and transient spikes expected in your application without derating issues.

Part Context

The RP188HSN series belongs to Astrodyne TDI's family of hermetically sealed rectifier modules, widely used in sectors requiring high reliability. These modules are often specified in military and aerospace contracts due to their proven track record in extreme conditions. The 'QD' suffix typically denotes a specific lead or connector configuration, so verify compatibility with existing wiring harnesses. This component serves as a critical interface between AC power sources and downstream DC regulation stages.

Replacement Considerations

Direct replacements should be sought from the same RP188HSN series with matching electrical ratings. Verify that any substitute part has identical pin assignments and mechanical dimensions to avoid redesigning the PCB or chassis. Cross-reference with manufacturer datasheets for equivalent models from other brands, ensuring they meet the same hermetic sealing and performance standards.