161EA20-BULK

Overview

The Hammond Manufacturing 161EA20-BULK is a low voltage power transformer designed for printed circuit board (PCB) mounting. It features a single primary winding rated for 115 VAC input and a dual secondary winding providing 20 VAC center-tapped output. The unit has a power rating of 1.2 VA with a secondary current capacity of 30 mA. It utilizes solder pin termination for through-hole installation and operates at a frequency of 60 Hz. The transformer is constructed for general-purpose applications within the specified electrical parameters.

Feature Summary

• Designed for direct PCB integration via through-hole solder pin termination
• Provides isolated step-down conversion from standard line voltage to low voltage
• Features a center-tapped secondary configuration for rectifier circuits

Applications

• Low power electronic control systems
• Rectifier circuit power supplies
• General purpose industrial control panels

Procurement Notes

Verify that the specific bulk packaging variant matches your assembly requirements, as packaging formats can differ between individual units and bulk quantities. Confirm that the 1.2 VA rating and 30 mA current limit are sufficient for your load. Ensure the physical dimensions fit the designated PCB footprint and that the through-hole spacing aligns with your manufacturing equipment capabilities before finalizing the order.

Selection Notes

Select this component when a compact, low-power transformer is required for direct board mounting. The 1.2 VA rating suits light loads such as logic circuits or small relays. Consider the center-tapped output if full-wave rectification is needed. Compare against higher VA ratings in the 161 series if greater current capacity is anticipated. Verify insulation class and temperature ratings against environmental conditions.

Part Context

This part belongs to the Hammond 161 series of low voltage PCB mount transformers. This series is characterized by its compact form factor and suitability for space-constrained designs. It complements other variants in the series that offer different voltage taps and power ratings, allowing designers to standardize on a single mounting style across multiple product lines while adjusting electrical specifications.

Replacement Considerations

Direct substitutes include other Hammond 161 series models with identical electrical ratings but different packaging, such as the non-bulk 161EA20. Cross-reference with other manufacturers' low-profile PCB transformers offering 1.2 VA, 115V primary, and 20V CT secondary outputs, ensuring mechanical compatibility and thermal performance match.