146E

Description：AUDIO XFMR 100CT / 8 CHAS MNT
Series：146
Mfr：Hammond Manufacturing
Package：Bulk

SKU:8750319ae556 Category: Audio Transformers Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：AUDIO XFMR 100CT / 8 CHAS MNT
Series：146
Mfr：Hammond Manufacturing
Package：Bulk
Mounting Type：Chassis Mount
Size / Dimension：1.630" L x 0.880" W (41.40mm x 22.35mm)
Height - Seated (Max)：0.810" (20.57mm)
Termination Style：Wire Leads
Turns Ratio - Primary:Secondary：-
Impedance - Primary (Ohms)：100CT
Impedance - Secondary (Ohms)：8
DC Resistance (DCR) - Primary：4.4Ohm
DC Resistance (DCR) - Secondary：700mOhm
Transformer Type：Economical Open Type
Frequency Range：150Hz ~ 15kHz
Frequency Response：±1dB
Voltage - Isolation：-
Insertion Loss：-
Return Loss：-
Power Level：700mW
Operating Temperature：-
Approval Agency：-

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146E

Overview

The Hammond Manufacturing 146E is an open-frame audio transformer designed for chassis mounting. It features a primary impedance of 100 ohms center-tapped and a secondary impedance of 8 ohms. The device operates within a frequency range of 150Hz to 15kHz with a response accuracy of ±1dB. Electrical characteristics include a primary DC resistance of 4.4 ohms and a secondary DC resistance of 700 milliohms. The unit supports a power level of 700mW and utilizes wire lead termination. Physical dimensions are 1.630 inches in length, 0.880 inches in width, and a maximum installation height of 0.810 inches.

Feature Summary

Open-frame construction suitable for chassis integration
Center-tapped primary winding configuration
Frequency response maintained within ±1dB tolerance

Applications

Audio output stage coupling
Chassis-mounted signal processing circuits
Low-power audio amplifier interstage connections

Procurement Notes

Verify the specific datasheet version corresponding to the 146E part number to confirm electrical tolerances and mechanical drawings. Ensure that the chassis mounting holes align with the specified dimensions of 1.630 inches by 0.880 inches. Confirm that the application environment does not exceed the 700mW power rating or the specified frequency range limits. Check for RoHS compliance status if required by the final assembly regulations.

Selection Notes

Select this component when a chassis-mount audio transformer with a 100CT:8 ohm ratio is required. The 150Hz to 15kHz frequency range suits standard audio applications rather than wideband RF uses. Consider the open-frame design for thermal dissipation needs up to 700mW. Verify that wire lead termination fits the PCB or wiring harness layout constraints compared to pin-terminal alternatives.

Part Context

The 146E belongs to the Hammond 143-146 series of audio transformers. This series provides economical open-frame solutions for various audio impedance matching tasks. The 146E specifically addresses output stage requirements with its 8-ohm secondary winding. It is distinct from the 149E model, which offers different impedance ratios and PC board mounting options.