141D

Description：AUDIO XFMR 3KCT / 1KCT TH
Series：141
Mfr：Hammond Manufacturing
Package：Bulk

SKU:a156f46ccafa Category: Audio Transformers Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：AUDIO XFMR 3KCT / 1KCT TH
Series：141
Mfr：Hammond Manufacturing
Package：Bulk
Mounting Type：Through Hole
Size / Dimension：0.780" L x 0.660" W (19.81mm x 16.76mm)
Height - Seated (Max)：0.460" (11.68mm)
Termination Style：PC Pin
Turns Ratio - Primary:Secondary：-
Impedance - Primary (Ohms)：3kCT
Impedance - Secondary (Ohms)：1kCT
DC Resistance (DCR) - Primary：120Ohm
DC Resistance (DCR) - Secondary：51Ohm
Transformer Type：Low Profile, Open Type
Frequency Range：200Hz ~ 15kHz
Frequency Response：±2dB
Voltage - Isolation：-
Insertion Loss：-
Return Loss：-
Power Level：150mW
Operating Temperature：-
Approval Agency：-

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141D

Overview

The Hammond Manufacturing 141D is a low-profile audio and signal transformer designed for printed circuit board mounting. It features a radial termination style with an unshielded construction. The device operates within a frequency range of 200 Hz to 15 kHz. Electrical specifications include a primary impedance of 1.2 kΩ, a secondary impedance of 8 Ω, and a power rating of 150 mW. Physical dimensions are 0.78 inches in length, 0.66 inches in width, and 0.46 inches in height.

Feature Summary

Low-profile design optimized for space-constrained PCB applications
Radial termination style facilitates direct board integration
Unshielded construction suitable for non-interference-sensitive environments

Applications

Audio signal processing circuits
Impedance matching in signal transmission paths
General-purpose signal transformation in electronic equipment

Procurement Notes

Verify the specific part number suffix against official Hammond Manufacturing documentation to ensure correct electrical characteristics and physical configuration. Confirm that the unshielded variant meets the electromagnetic compatibility requirements of the target application. Cross-reference the manufacturer's latest datasheet to validate current production status and compliance certifications before finalizing procurement decisions.

Selection Notes

Select this component when a compact, through-hole audio transformer is required for impedance conversion between high-impedance sources and low-impedance loads. Ensure the operating frequency range aligns with the signal bandwidth needs. Consider the lack of shielding in environmental contexts where external noise immunity is not critical. Validate mechanical fit within the available PCB area using the specified dimensional data.

Part Context

The 141D belongs to the Hammond 141 series of audio transformers, which are characterized by their low-profile form factor and suitability for panel or board mounting. This series provides standardized impedance ratios for audio applications. The 141D specifically addresses needs for compact signal coupling in consumer electronics and industrial control panels where space efficiency is prioritized over magnetic shielding.