164D12

Overview

The Hammond Manufacturing 164D12 is a low voltage power transformer designed for PCB mounting. It features a single primary winding rated at 115 VAC and dual secondary windings providing 12.6 VAC center-tapped output. The unit has a power rating of 1.1 VA with a secondary current capacity of 90 mA. Physical dimensions are 1.38 inches in length, 1.13 inches in width, and 1.31 inches in height. It utilizes through-hole solder pin termination and operates within a temperature range of 0°C to +130°C.

Feature Summary

• Low profile design optimized for space-constrained printed circuit board applications
• Split bobbin construction provides enhanced isolation between primary and secondary windings
• Center-tapped secondary configuration enables dual polarity voltage generation

Applications

• Embedded control systems requiring isolated low voltage DC supplies
• Industrial automation signal conditioning circuits
• Consumer electronics power regulation modules

Procurement Notes

Verify the specific suffix codes on the component marking against the official Hammond Manufacturing datasheet to confirm exact electrical tolerances and insulation class. Ensure the procurement documentation references the correct RoHS compliance status as defined in the latest product specification sheet. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing orders.

Selection Notes

Select this component when a compact, low-voltage transformer with center-tapped output is required for PCB integration. The 1.1 VA rating suits low-power signal processing or logic supply tasks. Verify that the 115 VAC primary input matches the available line voltage. Confirm that the physical footprint fits the designated board area and that the through-hole pins align with the layout pads.

Part Context

This transformer belongs to the Hammond 164 series, which offers various voltage and wattage combinations for general-purpose low voltage applications. The series is characterized by its standardized low-profile housing and through-hole mounting style, facilitating easy integration into existing electronic assemblies without requiring specialized surface-mount equipment.

Replacement Considerations

Direct substitutes include other Hammond 164 series models with identical 1.1 VA ratings and 12.6V CT outputs, such as variants with different primary voltage ratings if the input supply differs. Verify mechanical compatibility and electrical specifications before substituting.