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Product Detailed Parameters
- Description：AUDIO XFMR 100K / 1.5K CHAS MNT
- Series：140EX
- 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：Screw Terminal
- Turns Ratio - Primary:Secondary：8.13:1
- Impedance - Primary (Ohms)：100k
- Impedance - Secondary (Ohms)：1.5k
- DC Resistance (DCR) - Primary：5.43kOhm
- DC Resistance (DCR) - Secondary：159Ohm
- Transformer Type：-
- Frequency Range：20Hz ~ 20kHz
- Frequency Response：±1dB
- Voltage - Isolation：500Vrms
- Insertion Loss：1.2dB Typ
- Return Loss：30dB Typ
- Power Level：10dB
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 140MEX is a studio-grade audio transformer designed for impedance matching applications. It features a primary impedance of 100,000 ohms and a secondary impedance of 1,500 ohms, resulting in an 8.13:1 ratio. The component operates within a frequency range of 20Hz to 20kHz and utilizes chassis mounting. It is constructed with shielding to minimize interference and complies with RoHS standards.
Feature Summary
- Studio-grade impedance matching capability
- Shielded construction for signal integrity
- Chassis mount installation style
Applications
- Audio signal processing systems
- Impedance bridging in professional audio equipment
- Studio recording interface circuits
Procurement Notes
Verify the specific datasheet version when sourcing, as manufacturer documentation may update mechanical dimensions or compliance certifications over time. Confirm that the 100K:1500 ohm specification matches the target circuit requirements before finalizing procurement orders to ensure proper impedance transformation.
Selection Notes
Select this component when a high-impedance to low-impedance transformation is required in audio paths. The 8.13:1 ratio suits specific microphone preamplifier or line-level interfacing needs. Ensure the enclosure design accommodates chassis mounting hardware and provides adequate space for the shielded transformer body.
Part Context
This part belongs to Hammond Manufacturing's audio transformer lineup, which focuses on signal conditioning and impedance matching for professional audio environments. The 140 series typically offers robust performance for studio and broadcast applications requiring precise electrical characteristics.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing circuit boards and mounting constraints if considering alternative manufacturers.
FAQ
What is the impedance ratio of the 140MEX?
The 140MEX has a primary impedance of 100,000 ohms and a secondary impedance of 1,500 ohms, creating an 8.13:1 ratio.
Is the 140MEX shielded?
Yes, the 140MEX is a shielded audio transformer designed to reduce electromagnetic interference.
