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Product Detailed Parameters
- Description：AUDIO XFMR 600 150/150 / 8 TH
- Series：149
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：1.060" L x 0.820" W (26.92mm x 20.83mm)
- Height - Seated (Max)：0.820" (20.83mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：600, 150/150
- Impedance - Secondary (Ohms)：8
- DC Resistance (DCR) - Primary：53Ohm
- DC Resistance (DCR) - Secondary：95Ohm
- Transformer Type：Economical Open Type
- Frequency Range：200Hz ~ 15kHz
- Frequency Response：±1dB
- Voltage - Isolation：-
- Insertion Loss：0.5dB
- Return Loss：-
- Power Level：1000mW
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 149U is an open-frame audio transformer designed for PC board mounting with radial termination. It features a single channel configuration operating within a frequency range of 200 Hz to 15 kHz. The primary coil impedance is specified at 600 Ohms, while the secondary coil impedance is 8 Ohms. The component measures 1.06 inches in length, 0.82 inches in width, and 0.82 inches in height. It is rated for a maximum DC current of 42 mA and has a maximum DC resistance of 41 ohms.
Feature Summary
- Open-frame construction suitable for direct printed circuit board integration
- Radial pin terminal termination for standard mounting processes
- Single-channel design optimized for signal level applications
Applications
- Audio signal processing circuits
- Impedance matching between stages
- Signal isolation in electronic systems
Procurement Notes
Verify the specific datasheet version to confirm electrical tolerances and thermal ratings before finalizing the design. Ensure that the PCB footprint matches the radial pin spacing provided in the official dimensional drawings. Confirm compliance requirements such as RoHS status with the manufacturer or authorized distributor prior to ordering.
Selection Notes
Select this component when a single-channel audio transformer with a 600-ohm primary and 8-ohm secondary is required. Consider the physical dimensions of 1.06 x 0.82 x 0.82 inches for space-constrained designs. Evaluate the 200 Hz to 15 kHz frequency response against the specific application bandwidth needs.
Part Context
This part belongs to the Hammond Manufacturing 149 series of audio and signal transformers. These components are engineered for general-purpose audio applications requiring reliable signal transformation. The series offers various impedance configurations to suit different circuit requirements while maintaining consistent form factors for standardized mounting.
Replacement Considerations
Consult official cross-reference lists from Hammond Manufacturing for verified substitute part numbers. Ensure any replacement maintains identical primary and secondary impedance values and physical mounting dimensions to guarantee compatibility.
