142B

Overview

The Hammond Manufacturing 142B is an audio transformer designed for printed circuit board (PCB) mounting. It features an open-frame construction suitable for direct integration into electronic assemblies. The component provides electrical isolation and impedance matching within audio signal paths. Key specifications include a primary winding configuration of 10K ohms with a center tap and a secondary winding of 2K ohms with a center tap. This model belongs to the 142 series of audio transformers manufactured by Hammond.

Feature Summary

• Open-frame design facilitates direct PCB mounting
• Provides electrical isolation between circuits
• Supports impedance transformation in audio applications

Applications

• Audio signal processing circuits
• Impedance matching networks
• Electronic equipment requiring galvanic isolation

Procurement Notes

Verify the specific winding configuration matches the design requirements, as variations exist within the series. Confirm that the PCB footprint accommodates the lead spacing of this open-frame component. Ensure the operating frequency range aligns with the transformer's specified bandwidth for the intended audio application.

Selection Notes

Select this model when a 10K CT to 2K CT ratio is required for audio stages. Consider the physical dimensions and weight constraints of the assembly. Evaluate thermal performance if the transformer will be densely packed on the board. Compare against other series models if different impedance ratios or mounting styles are needed.

Part Context

This component is part of Hammond Manufacturing's broader portfolio of magnetic components. The 142 series specifically targets audio frequency applications where reliable isolation and signal integrity are critical. Hammond Manufacturing specializes in enclosures and electronic hardware, providing these transformers as standard off-the-shelf solutions for industrial and commercial electronics.

Replacement Considerations

Direct substitutes may include other Hammond 142 series variants with identical electrical parameters but different packaging. Cross-reference with industry-standard audio transformer equivalents ensuring the 10K CT:2K CT specification is maintained. Verify mechanical compatibility before replacing with non-Hammond brands.