182L18

Overview

The Hammond Manufacturing 182L18 is a toroidal power transformer with an 80VA maximum power rating. It features dual primary windings for 117V and 234V operation and dual secondary windings configurable in parallel (18V at 4.44A) or series (36V at 2.22A). Designed for chassis mounting, it measures 88.90mm in diameter and 38.10mm in height. The unit provides 4000Vrms isolation voltage and utilizes wire leads for termination.

Feature Summary

• High-efficiency toroidal design reduces physical footprint and weight while minimizing electromagnetic interference radiation.
• Dual primary winding configuration allows flexible input voltage selection for global compatibility.
• Dual secondary windings enable versatile output configurations through parallel or series connection options.

Applications

• Chassis-mounted power supplies requiring compact form factors
• Audio equipment power stages needing low electromagnetic interference
• Industrial control systems utilizing dual voltage input requirements

Procurement Notes

Verify the specific suffix code to confirm exact electrical parameters, as Hammond Manufacturing uses alphanumeric codes to denote variations in voltage, current, and insulation class. Confirm that the required mounting hardware is included or sourced separately, as the component specifies chassis mounting without integrated brackets. Ensure the application environment supports the thermal characteristics of an open-frame toroidal design.

Selection Notes

Select this model when space constraints necessitate a low-profile magnetic component with high efficiency. The dual secondary capability offers flexibility for bridge rectifier circuits or split-rail power generation. Verify that the 80VA rating meets the peak load demands of the target circuit, accounting for inrush currents typical of capacitive loads connected to toroidal transformers.

Part Context

This component belongs to the Hammond 1182 series of toroidal power transformers. The series is characterized by efficient core materials and standardized dimensions for easy integration into various electronic enclosures. The 182L18 variant specifically addresses applications requiring 18V or 36V outputs from standard line voltages.

Replacement Considerations

Direct replacements must match the 80VA rating, 88.90mm diameter, and 38.10mm height to fit existing chassis mounts. Verify that substitute models support the same dual primary and dual secondary winding configurations. Check for equivalent 4000Vrms isolation ratings to maintain safety compliance in the final assembly.