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Product Detailed Parameters
- Description：AUDIO XFMR 10KCT / 1.5KCT TH
- Series：109
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：1.315" L x 0.930" W (33.40mm x 23.62mm)
- Height - Seated (Max)：0.920" (23.37mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：5.16:1
- Impedance - Primary (Ohms)：10kCT
- Impedance - Secondary (Ohms)：1.5kCT
- DC Resistance (DCR) - Primary：384Ohm
- DC Resistance (DCR) - Secondary：58Ohm
- Transformer Type：Miniature Epoxy Potted
- Frequency Range：300Hz ~ 50kHz
- Frequency Response：±1.5dB
- Voltage - Isolation：100VRMS
- Insertion Loss：-
- Return Loss：-
- Power Level：2W
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 109R is a potted audio and signal transformer designed for through-hole mounting. It operates within a frequency range of 300 Hz to 50 kHz. The component features a single channel configuration with a primary impedance of 10 kΩ (center-tapped) and a secondary impedance of 1.5 kΩ (center-tapped). Electrical characteristics include a primary resistance of 700 Ω. The physical dimensions are 1.315 inches in length, 0.93 inches in width, and 0.92 inches in height.
Feature Summary
- Potted construction for environmental protection
- Center-tapped primary and secondary windings
- Through-hole pin terminal termination
Applications
- Audio signal coupling
- Impedance matching in signal chains
- Balanced line interfacing
Procurement Notes
Verify the specific manufacturer part number against official Hammond Manufacturing documentation to ensure accuracy. Confirm that the required center-tapped impedance values align with the circuit design specifications before procurement. Cross-reference the through-hole package dimensions with the target PCB layout to ensure proper fitment and mechanical stability during assembly.
Selection Notes
Select this component when a dedicated audio transformer with specific center-tapped impedance ratios is required. Ensure the operating frequency range meets the application's signal bandwidth requirements. Consider the physical size constraints of the enclosure relative to the transformer's external dimensions.
Part Context
This component belongs to the Hammond Manufacturing 109 series of audio transformers. It is categorized under audio and signal transformers, distinct from power or RF transformers. The series provides standardized impedance options for audio circuit applications.
FAQ
What is the center-tap configuration of the 109R transformer?
Both the primary and secondary windings feature a center-tap configuration.
Is the 109R suitable for high-frequency RF applications?
No, the specified frequency range is 300 Hz to 50 kHz, which is intended for audio and low-frequency signal applications.
