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Product Detailed Parameters
- Description：AUDIO XFMR 10K / 10K CHAS MNT
- Series：1140
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Chassis Mount
- Size / Dimension：-
- Height - Seated (Max)：-
- Termination Style：Screw Terminal
- Turns Ratio - Primary:Secondary：1:01
- Impedance - Primary (Ohms)：10k
- Impedance - Secondary (Ohms)：10k
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Impedance Matching
- Frequency Range：20Hz ~ 20kHz
- Frequency Response：±0.35dB
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：-
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 1140-LN-B is a studio-grade audio transformer designed for line input applications. It features a 1:1 impedance ratio with primary and secondary impedances of 10k ohms. The device operates within a frequency range of 20Hz to 20kHz and supports 500Vrms. Primary and secondary DC resistances are both 1.03 kohms, with a core material of nickel alloy. It utilizes wire leads for termination and includes shielding. Physical dimensions are 2.25 inches in length and 1.069 inches in width.
Feature Summary
- Designed for input stages requiring wide bandwidth and low distortion
- Suitable for balancing input stages in high-fidelity audio systems
- Chassis mount construction with shielded design
Applications
- Studio grade impedance matching
- Balancing input stages
- Line input audio transformers
Procurement Notes
Verify the manufacturer part number 1140-LN-B against official Hammond Manufacturing documentation to ensure correct specifications. Confirm that the required impedance ratio is 10k to 10k and that the chassis mount form factor aligns with the design constraints. Check for RoHS compliance status as indicated in current datasheets before finalizing procurement.
Selection Notes
Select this component when a 1:1 impedance transformation is required for line-level audio signals. Ensure the application demands a 10k ohm primary and secondary impedance match. The chassis mount style and wire lead termination must be compatible with the enclosure design. Verify that the 20Hz to 20kHz frequency response meets the system's audio fidelity requirements.
Part Context
This unit belongs to the 1140 Series of studio-grade impedance matching transformers from Hammond Manufacturing. The series is characterized by high-quality nickel alloy cores and shielding to minimize interference. This specific model provides a balanced 10k to 10k configuration, distinct from other variants like the 1140-LN-A which offers different impedance ratios.
Replacement Considerations
Direct substitutes within the same series include models with identical 10k to 10k impedance ratios. Verify that any replacement maintains the same chassis mount dimensions and wire lead termination style. Cross-reference the frequency response and voltage ratings to ensure functional equivalence in the specific audio circuit.
