162H20

Overview

The Hammond Manufacturing 162H20 is a low voltage PCB mount power transformer with a 20VA rating. It features dual primary windings for 115VAC and 230VAC input and dual secondary windings providing 20VAC center-tapped output at 1A, or 10VAC parallel output at 2A. Designed for through-hole mounting, it measures 57.15mm in length, 47.63mm in width, and 36.52mm in height. The unit offers 2500Vrms isolation voltage and operates within a temperature range of 0°C to +130°C.

Feature Summary

• Dual primary winding configuration supports both 115VAC and 230VAC operation on 50/60 Hz current.
• Flexible secondary output allows series connection for 20VAC at 1A or parallel connection for 10VAC at 2A.
• Low profile laminated core design facilitates direct printed circuit board mounting via PC pins.

Applications

• Low voltage AC power supply circuits
• Industrial control panel instrumentation
• Electronic equipment requiring isolated power sources

Procurement Notes

Verify the specific secondary configuration required (series vs. parallel) against the application schematic before ordering. Confirm that the physical dimensions fit the designated PCB footprint and enclosure space. Ensure the operating environment remains within the specified 0°C to +130°C temperature range to maintain performance and safety compliance.

Selection Notes

Select this model when a 20VA capacity is needed with flexible secondary voltage options. It is suitable for designs requiring galvanic isolation with a 2500Vrms rating. Consider the through-hole mounting style and standard leaded termination for compatibility with existing assembly processes.

Part Context

This component belongs to the Hammond 162 series of low voltage PCB mount transformers. The series includes various VA ratings from 1.1VA to 36VA and multiple output voltages. All units in this family share similar dual primary winding capabilities and low-profile construction for dense electronic assemblies.

Replacement Considerations

Cross-reference with other Hammond 162 series models such as 162H24 for different voltage requirements. Verify that any substitute maintains the same 20VA rating, physical envelope, and electrical isolation specifications to ensure mechanical and functional compatibility.

FAQ

Can the secondary windings be connected in parallel?

Yes, the dual secondary windings can be connected in parallel to provide a 10VAC output at a maximum current of 2A.

What is the isolation voltage rating?

The transformer provides an isolation voltage of 2500Vrms between the primary and secondary windings.