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Product Detailed Parameters
- Description：AUDIO XFMR 4 / 60K CHAS MNT
- Series：140
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Chassis Mount
- Size / Dimension：1.250" Dia (31.75mm)
- Height - Seated (Max)：1.000" (25.40mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：0.126388889
- Impedance - Primary (Ohms)：4
- Impedance - Secondary (Ohms)：60k
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Shielded
- Frequency Range：70Hz ~ 11kHz
- Frequency Response：±1dB
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：-
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 140A is an unshielded audio signal transformer designed for voice coil applications. It features screw termination and operates within a frequency range of 70 Hz to 11 kHz. The unit has a primary impedance of 4 Ohms and a secondary impedance of 60 kOhms. Physically, it measures 1 inch in height and weighs 59 grams. This component is classified under Audio & Signal Transformers.
Feature Summary
- Provides signal level transformation between low impedance voice coils and high impedance lines
- Utilizes screw terminal connections for secure wiring
- Constructed as an unshielded unit for standard audio interfacing
Applications
- Voice coil interfacing
- Signal level matching
- Audio system integration
Procurement Notes
Verify the specific manufacturer part number against official documentation before procurement. Confirm that the component meets all required electrical specifications for the intended application. Check for any shipping restrictions related to product size or weight. Ensure compliance with relevant environmental regulations such as RoHS requirements. Validate availability status as this item may be discontinued.
Selection Notes
Select this component when a direct match between 4 Ohm primary and 60 kOhm secondary impedances is required. Consider the unshielded design and screw termination style for compatibility with existing circuit layouts. Evaluate the physical dimensions and weight constraints for the installation environment. Verify that the operating frequency range aligns with the audio signal requirements.
Part Context
This component belongs to the Hammond Manufacturing 140 series of audio transformers. It is categorized under Audio & Signal Transformers within the broader transformer product line. The manufacturer specializes in industrial enclosures and electronic components.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided data. Consult official manufacturer documentation for potential cross-references or updated model replacements.
