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Product Detailed Parameters
- Description：AUDIO XFMR 50 / 1.5K 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：1:05:05
- Impedance - Primary (Ohms)：50
- Impedance - Secondary (Ohms)：1.5k
- 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 140N is a shielded audio transformer designed for impedance matching in audio circuits. It functions as a Dyn Mic to Base transformer, facilitating signal coupling and interstage matching within electronic systems. The component utilizes chassis mounting and features a cylindrical physical profile with a diameter of 1.250 inches (31.75mm). This specific part number is classified as obsolete.
Feature Summary
- Shielded construction for electromagnetic interference reduction
- Designed specifically for dynamic microphone to base impedance matching
- Facilitates signal coupling and interstage matching in audio applications
Applications
- Dynamic microphone input stages
- Audio signal coupling
- Interstage impedance matching
Procurement Notes
Verify the obsolete status of the 140N before procurement planning. Confirm availability through secondary market channels or authorized distributors holding legacy stock. Ensure that the replacement strategy aligns with long-term production requirements given the discontinuation status.
Selection Notes
Select this component only for legacy system maintenance where original specifications are mandatory. Evaluate the 140NEX as the designated replacement alternative for new designs. Assess mechanical fit and electrical compatibility carefully when substituting obsolete parts into existing circuit architectures.
Part Context
The 140N belongs to Hammond Manufacturing's historical line of audio transformers. It serves specialized roles in professional audio equipment requiring precise impedance transformation between dynamic microphones and subsequent amplifier stages. Its design reflects older manufacturing standards for shielded signal isolation.
Replacement Considerations
Consult the 140NEX datasheet for direct replacement specifications. Verify pinout compatibility and enclosure dimensions to ensure seamless integration into existing chassis mounts without modification.
