161D28

Overview

The Hammond Manufacturing 161D28 is a low voltage PCB mount power transformer with a single primary winding rated at 115V. It features dual secondary windings providing parallel 14V and series 28V outputs. The unit has a maximum power rating of 1VA, with secondary current ratings of 60mA in parallel mode and 30mA in series mode. It utilizes through-hole solder pin termination and operates within a temperature range of 0°C to +130°C.

Feature Summary

• Provides versatile output configurations via dual secondary windings supporting both parallel and series connections.
• Designed for direct printed circuit board mounting using through-hole solder pin technology.
• Constructed with a laminated core structure suitable for low voltage applications.

Applications

• Low voltage power supply circuits requiring 14V or 28V outputs
• Electronic equipment utilizing PCB mounted transformers
• Signal processing systems operating within specified thermal limits

Procurement Notes

Verify the specific secondary configuration required for your design, as the component supports both parallel and series modes. Confirm that the 115V primary voltage aligns with your input source. Ensure the PCB layout accommodates the through-hole pin spacing and physical dimensions. Check compliance requirements against local regulations before finalizing procurement.

Selection Notes

Select this model when a compact, low-power solution is needed for 115V input systems. The dual secondary option allows flexibility for different voltage needs without changing components. Consider the thermal environment, as the maximum operating temperature reaches 130°C. This part is suitable for applications where space constraints limit the use of larger chassis-mounted alternatives.

Part Context

This component belongs to the 161 series of power transformers manufactured by Hammond Manufacturing. The series focuses on low voltage, PCB-mountable units designed for integration into various electronic assemblies. These transformers are characterized by their laminated core construction and standardized pin arrangements for reliable board-level connectivity.

Replacement Considerations

Consult official Hammond Manufacturing documentation for verified substitute part numbers. Cross-reference electrical parameters such as primary voltage, VA rating, and secondary configuration to ensure functional compatibility. Verify physical footprint and pinout alignment before substituting.