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Product Detailed Parameters
- Description：AUDIO XFMR 20K / 1KCT TH
- Series：104
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：0.860" L x 0.710" W (21.84mm x 18.03mm)
- Height - Seated (Max)：0.750" (19.05mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：20k
- Impedance - Secondary (Ohms)：1kCT
- DC Resistance (DCR) - Primary：790Ohm
- DC Resistance (DCR) - Secondary：125Ohm
- Transformer Type：Miniature Epoxy Potted
- Frequency Range：200Hz
- Frequency Response：-1dB
- Voltage - Isolation：200V
- Insertion Loss：1dB
- Return Loss：-
- Power Level：35mW
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 104K is an audio and signal transformer designed for pin terminal mounting. It features a potted construction with unshielded windings. The primary coil impedance is 20,000 ohms with a resistance of 790 ohms. The secondary coil provides a center-tapped configuration with a total impedance of 1,000 ohms (1k CT) and a resistance of 125 ohms. This component belongs to the 104 series and is classified as a pin terminal transformer.
Feature Summary
- Potted construction for environmental protection
- Center-tapped secondary winding configuration
- Pin terminal mounting style
Applications
- Audio signal processing circuits
- Impedance matching in audio equipment
- Signal transformation in electronic systems
Procurement Notes
Verify the specific datasheet version for the 104K model to confirm electrical tolerances and physical dimensions. Ensure compatibility with existing pin layouts and thermal requirements. Cross-reference manufacturer documentation for any updates regarding RoHS compliance status or material specifications before finalizing procurement decisions.
Selection Notes
Select this transformer when a 20k:1k center-tapped impedance ratio is required for audio applications. Consider the unshielded design if electromagnetic interference is not a critical factor. Evaluate the pin terminal interface against available PCB space and soldering capabilities. Compare physical weight and size constraints against alternative shielded models if necessary.
Part Context
The 104K is part of the Hammond Manufacturing 104 series of audio transformers. These components are engineered for general-purpose audio signal handling. The series offers various impedance configurations to suit different circuit requirements. Hammond Manufacturing specializes in enclosures and electronic components, providing standardized solutions for industrial and commercial electronics.
FAQ
Is the 104K transformer shielded?
No, the 104K is specified as an unshielded transformer.
What is the secondary winding configuration?
The secondary winding is center-tapped with a total impedance of 1,000 ohms.
