148M

Description：AUDIO XFMR 6K / 2K 500/500 TH
Series：148
Mfr：Hammond Manufacturing
Package：Bulk

SKU:c4b761f33790 Category: Audio Transformers Brand: Hammond Manufacturing

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Product introduction

Product Detailed Parameters

Description：AUDIO XFMR 6K / 2K 500/500 TH
Series：148
Mfr：Hammond Manufacturing
Package：Bulk
Mounting Type：Through Hole
Size / Dimension：0.820" L x 0.680" W (20.83mm x 17.27mm)
Height - Seated (Max)：0.690" (17.53mm)
Termination Style：PC Pin
Turns Ratio - Primary:Secondary：-
Impedance - Primary (Ohms)：6k
Impedance - Secondary (Ohms)：2k, 500/500
DC Resistance (DCR) - Primary：850Ohm
DC Resistance (DCR) - Secondary：230Ohm
Transformer Type：Economical Open Type
Frequency Range：200Hz ~ 15kHz
Frequency Response：±1dB
Voltage - Isolation：-
Insertion Loss：0.5dB
Return Loss：-
Power Level：75mW
Operating Temperature：-
Approval Agency：-

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148M

Overview

The Hammond Manufacturing 148M is an open-frame audio signal transformer designed for printed circuit board mounting. It features a driver configuration with a primary impedance of 6000 ohms and secondary impedances of 500 ohms and 2000 ohms. The component utilizes pin-type terminals measuring 0.25 inches in length with a 0.025-inch square profile. Constructed with horizontal bracket assembly, it supports frequency responses starting at 200 Hz.

Feature Summary

Open frame construction utilizing horizontal bracket assembly for economical integration
Pin type terminals designed specifically for printed circuit board mounting applications
Driver configuration supporting dual secondary impedance options

Applications

Audio signal processing circuits
Amplifier driver stages
Signal coupling applications

Procurement Notes

Verify the specific datasheet version to confirm exact physical dimensions and terminal specifications. Ensure compatibility with the target PCB layout regarding pin spacing and hole size. Confirm that the operating frequency range meets the application requirements. Check for RoHS compliance status if required by the manufacturing process.

Selection Notes

Select this component when a dedicated audio driver transformer with specific impedance matching is required. The dual secondary winding allows flexibility for different load requirements. Verify that the open-frame design fits within the available enclosure space without requiring additional shielding. Consider thermal management needs based on the power dissipation characteristics.

Part Context

This part belongs to the Hammond Manufacturing 148 series of audio transformers. The series includes variants such as the 148R and 148M, which share similar mounting styles but differ in impedance ratios. These components are typically used in professional audio equipment where precise signal transformation is necessary.

Replacement Considerations

Check for direct substitutes from Hammond or other manufacturers offering identical 6000:500/2000 ohm ratios. Verify that any replacement maintains the same pin dimensions and mounting configuration to ensure PCB compatibility.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.