166K18

Power Transformers Overview

The Hammond Manufacturing 166K18 is a laminated core power transformer designed for chassis mounting. It features a single primary winding rated at 115 VAC and a single secondary winding providing 18 VAC center-tapped output. The unit delivers a maximum power of 27 VA with a secondary current rating of 1.5 A. It operates at frequencies of 50 Hz or 60 Hz and supports an operating temperature range from 0°C to +130°C. Physical dimensions are 3.25 inches in length, 1.75 inches in width, and 2.00 inches in height. The device utilizes wire leads for termination and provides 2000 Vrms isolation voltage.

Power Transformers Feature Summary

• Chassis mount design with horizontal channel bracket two-hole mounting configuration
• Laminated core construction for efficient low voltage power transformation
• Single primary and single secondary winding topology with center-tapped secondary output
• Wire lead termination style for direct circuit integration

Power Transformers Applications

• Industrial control panel power supplies
• Low voltage equipment requiring 18V AC center-tapped input
• General purpose chassis-mounted power distribution
• Electronics projects utilizing standard 115V AC mains input

Power Transformers Procurement Notes

Verify the specific datasheet version for the 166K18 to confirm exact dimensional tolerances and insulation class ratings prior to final integration. Ensure that the required 1.5A secondary current capacity aligns with the load requirements of the target application. Confirm compliance with regional safety standards such as UL or CE if applicable to the end product. Check for any recent updates to the RoHS status or REACH regulations affecting procurement channels.

Power Transformers Selection Notes

Select this model when a 27 VA power rating and 18V CT secondary are required for chassis-mounted applications. Compare against the 166J18 (18 VA) if lower power consumption is sufficient, or the 166G30 (15 VA) for smaller form factors. Consider the physical footprint of 3.25 x 1.75 x 2.00 inches for enclosure space planning. Verify that the 115V primary voltage matches the available supply frequency of 50/60 Hz.

Power Transformers Part Context

The 166K18 belongs to the Hammond Manufacturing 166 series of industrial control transformers. This series is characterized by economical laminated core designs intended for general-purpose power transformation. The 166 series offers various power ratings and voltage configurations to suit different chassis mounting needs within industrial and commercial electronic systems.

Power Transformers Replacement Considerations

The 166J18 serves as a lower-power alternative within the same series, offering 18 VA. For higher power requirements, the 166K24 or similar higher-rated models in the 166 series may be considered. Direct cross-referencing should verify identical mounting hole patterns and terminal configurations.