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Product Detailed Parameters
- Description：AUDIO XFMR 48CT / 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)：48CT
- Impedance - Secondary (Ohms)：8
- DC Resistance (DCR) - Primary：2.4Ohm
- 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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Overview
The Hammond Manufacturing 146C is a chassis-mount audio transformer designed for signal coupling applications. It features a primary impedance of 48 CT ohms and a secondary impedance of 8 ohms, with a DC resistance of 4.4 ohms on the primary side and 700 milliohms on the secondary side. The device operates within a frequency range of 150Hz to 15kHz, maintaining a frequency response of ±1dB. Rated for a power level of 700mW, it utilizes wire lead termination. The physical dimensions are 1.630 inches in length by 0.880 inches in width (41.40mm x 22.35mm), with a maximum installation height of 0.810 inches (20.57mm).
Feature Summary
- Chassis mount construction for secure panel integration.
- Economic open-frame design suitable for general audio coupling.
- Wire lead termination for flexible circuit connection.
Applications
- Audio signal coupling circuits.
- Output stage interfacing in audio equipment.
- Impedance matching between audio components.
Procurement Notes
Verify the specific manufacturer part number against official Hammond Manufacturing documentation to ensure compatibility with your design requirements. Confirm that the 48 CT primary and 8 ohm secondary impedance values align with your circuit specifications before procurement. Check current availability status through authorized distributors as supply levels may fluctuate.
Selection Notes
Select this component when a dedicated audio coupling transformer with a 48 CT to 8 ohm ratio is required. Ensure the chassis mounting style fits your enclosure constraints. Consider the 700mW power rating and 150Hz-15kHz frequency response to verify suitability for the intended audio application bandwidth and power handling needs.
Part Context
The 146C belongs to the Hammond Manufacturing 143B/146 series of audio transformers. This series provides economical open-frame solutions for various audio interfacing tasks. The 146C specifically addresses applications requiring a 48 CT primary configuration, distinguishing it from other variants like the 146E which features a 100 CT primary.
Replacement Considerations
The 146E serves as a related variant within the same series but differs in primary impedance (100 CT vs 48 CT). Verify electrical parameters carefully when substituting. No other direct public substitute part numbers are confirmed for this specific impedance configuration.
