227T

Power Transformers Overview

The Hammond Manufacturing 227T is a board-mount power transformer with an epoxy-cast construction. It features dual primary and dual secondary windings for versatile input and output configurations. The unit operates at 400 Hz with a 115 VAC primary rating. The secondary provides 40 V center-tapped at 1 A or 20 V at 2 A, delivering a total power of 40 VA. Designed for through-hole PCB installation, it ensures reliable performance in high-frequency applications requiring compact power conversion.

Power Transformers Feature Summary

• Epoxy-cast encapsulation for mechanical protection and environmental resistance
• Dual primary and dual secondary winding configuration for flexible voltage selection
• Optimized for 400 Hz operation to support aerospace and specialized industrial systems

Power Transformers Applications

• Aerospace avionics power supplies
• Industrial control systems requiring 400 Hz transformers
• Military electronic equipment
• High-frequency power conversion circuits

Power Transformers Procurement Notes

Verify the specific datasheet version and manufacturer documentation to confirm electrical tolerances and thermal characteristics before integration. Ensure that the PCB layout supports the required through-hole pin spacing and current ratings. Cross-reference the 400 Hz operational requirement with system specifications to guarantee compatibility. Confirm compliance with relevant safety standards and RoHS directives as stated in official product literature.

Power Transformers Selection Notes

Select this component when a 400 Hz power transformer is required for board-mounted applications. The 40 VA rating and dual winding options provide flexibility for various voltage step-down needs. Consider the physical dimensions and weight constraints for the enclosure design. Verify that the epoxy-cast construction meets the environmental protection requirements of the target application environment.

Power Transformers Part Context

This transformer belongs to the 227 Series from Hammond Manufacturing, designed for robust power conversion in demanding environments. The series includes variants like the 227P, which shares similar construction but differs in secondary voltage ratings. The 227T specifically targets 400 Hz applications, distinguishing it from standard 50/60 Hz counterparts. Its semi-toroidal shape aids in efficient magnetic coupling and reduced electromagnetic interference.

Power Transformers Replacement Considerations

Direct substitutes are not explicitly listed in public documentation. Evaluate other Hammond 227 series models or comparable 400 Hz transformers based on VA rating, voltage configuration, and mounting style. Ensure any replacement matches the physical footprint and pinout to maintain PCB compatibility.