141H

Overview

The Hammond Manufacturing 141H is a low-profile, printed circuit board mount audio transformer designed for signal coupling applications. It features a radial termination style and operates within a frequency range of 200 Hz to 15 kHz. The unit has a primary impedance of 200k ohms and a secondary impedance of 1000 ohms. Physical dimensions are 0.78 inches in length, 0.66 inches in width, and 0.46 inches in height. The device is unshielded and carries a power rating of 150 mW.

Feature Summary

• Low-profile design optimized for space-constrained printed circuit board mounting
• Radial termination configuration for direct PCB integration
• Unshielded construction suitable for non-interference-sensitive audio paths

Applications

• Audio signal coupling in compact electronic devices
• Impedance matching between high-impedance sources and lower-impedance loads
• Signal isolation in professional audio equipment circuits

Procurement Notes

Verify the specific impedance ratio and physical footprint against your schematic requirements before ordering. Confirm that the unshielded nature of the component does not conflict with electromagnetic interference constraints in your final assembly. Ensure the radial lead spacing matches your PCB layout. Cross-reference the manufacturer datasheet for precise mechanical tolerances and thermal limits to guarantee reliable operation under expected load conditions.

Selection Notes

Select this component when a low-profile audio transformer with a 200k:1000 ohm impedance ratio is required for PCB mounting. Consider the unshielded design if external shielding is provided by the enclosure or if EMI is not a critical factor. Evaluate the 150 mW power rating to ensure it meets the signal level requirements of your application without distortion. Compare physical dimensions against available board space to confirm fitment.

Part Context

The 141H belongs to Hammond Manufacturing's series of P.C. board mount audio transformers. This series focuses on providing compact solutions for audio signal processing tasks where space is limited. These components are engineered for reliability in consumer and professional audio environments, offering consistent performance across the specified frequency range while maintaining a small form factor suitable for dense circuit board layouts.