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Product Detailed Parameters
- Description：AUDIO XFMR 500CT / 3.2 TH
- Series：106
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：1.080" L x 0.880" W (27.43mm x 22.35mm)
- Height - Seated (Max)：0.950" (24.13mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：500CT
- Impedance - Secondary (Ohms)：3.2
- DC Resistance (DCR) - Primary：26Ohm
- DC Resistance (DCR) - Secondary：300mOhm
- Transformer Type：Miniature Epoxy Potted
- Frequency Range：170Hz
- Frequency Response：-1dB
- Voltage - Isolation：200V
- Insertion Loss：1dB
- Return Loss：-
- Power Level：1.5W
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 106W is a miniature audio transformer featuring epoxy potting for environmental protection. It utilizes through-hole mounting with PC pin termination. The primary side impedance is 500 Ohms center-tapped, while the secondary side impedance is 3.2 Ohms. DC resistance measures 26 Ohms on the primary and 300 milliohms on the secondary. The unit supports a power level of 500mW and operates within a frequency range starting at 170Hz. Isolation voltage is rated at 200V.
Feature Summary
- Miniature epoxy potted construction for durability
- Center-tapped primary winding configuration
- Through-hole PC pin termination style
Applications
- Audio signal coupling
- Impedance matching in low-power audio circuits
- Line-level audio interface isolation
Procurement Notes
Verify the specific impedance configuration against circuit requirements, as the 106 series includes variants with different primary impedances such as 600 Ohms or 48 Ohms. Confirm that the 3.2 Ohm secondary matches the load device. Ensure the 500mW power rating is sufficient for the intended application to prevent saturation or overheating during operation.
Selection Notes
Select this component when a compact audio transformer with a 500 Ohm center-tapped primary and 3.2 Ohm secondary is required. The epoxy potting provides necessary protection against moisture and vibration compared to unpotted alternatives. Consider the physical dimensions and through-hole mounting constraints during PCB layout design to ensure proper fit and mechanical stability.
Part Context
This part belongs to the Hammond 106 series of miniature audio transformers. The series offers various impedance combinations tailored for different audio applications. The 106W specifically addresses needs for low-impedance secondary loads while maintaining a standard center-tapped primary configuration common in tube and solid-state audio interfaces.
Replacement Considerations
- Hammond 106E (600CT/600 Ohm)
- Hammond 106Q (48CT/3.2 Ohm)
FAQ
What is the isolation voltage rating?
The isolation voltage is rated at 200V.
Does the primary winding have a center tap?
Yes, the primary impedance is specified as 500 Ohms center-tapped.
