162D56

Overview

The Hammond Manufacturing 162D56 is a low-voltage PCB mount power transformer with a 1.1 VA rating. It features dual primary windings for 115 VAC and 230 VAC input, and a dual secondary winding configuration providing 56 VAC center-tapped output at 18 mA. The unit utilizes a split bobbin design for non-concentrically wound coils to minimize leakage inductance. Physical dimensions are 1.38 inches in length, 1.13 inches in width, and 1.31 inches in height. It supports through-hole mounting and operates at 50/60 Hz frequencies.

Feature Summary

• Low profile construction with split bobbin design
• Dual primary and dual secondary winding configurations
• Non-concentrically wound coils for reduced leakage inductance

Applications

• Low voltage AC power supply circuits
• Control panel power distribution
• Industrial automation equipment
• Electronic instrumentation power stages

Procurement Notes

Verify the specific secondary current rating against official datasheets, as conflicting data exists between 15 mA and 18 mA for this part number. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the through-hole pin spacing matches the target PCB layout before ordering.

Selection Notes

Select this component when a compact, low-power transformer is required for dual voltage primary applications. The split bobbin architecture makes it suitable for designs sensitive to leakage inductance. Compare physical height constraints against other series like 160 or 161 to ensure mechanical fit within the enclosure.

Part Context

This model belongs to the Hammond 162 Series of low-profile power transformers. It shares similar physical footprints with variants such as the 162D12, 162D24, and 162D36, which differ primarily in secondary voltage ratings. The series is designed for general-purpose low voltage isolation in space-constrained electronic assemblies.

Replacement Considerations

The Signal Transformer PC-56-15 is documented as a similar replacement option. Verify electrical parameters and mechanical dimensions carefully before substitution, as cross-manufacturer equivalents may have different thermal or insulation characteristics.