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Product Detailed Parameters
- Description：TRANSFORMER
- Series：107
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：0.566" L x 0.630" W (14.38mm x 16.00mm)
- Height - Seated (Max)：0.598" (15.19mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：1:01
- Impedance - Primary (Ohms)：150CT
- Impedance - Secondary (Ohms)：150CT
- DC Resistance (DCR) - Primary：20Ohm
- DC Resistance (DCR) - Secondary：25Ohm
- Transformer Type：Miniature Epoxy Potted
- Frequency Range：300Hz ~ 50kHz
- Frequency Response：±1.5dB
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：150mW
- Operating Temperature：-40°C ~ 105°C
- Approval Agency：-
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Overview
The Hammond Manufacturing 107D-BULK is an audio transformer designed for general-purpose and replacement use in push-pull tube output circuits. It features a 150-milliwatt power rating with a tolerance of +/- 1.5 dB at 300 Hz. The component utilizes epoxy potting within a molded case for durability. It employs pin-type connections with a minimum length of 0.187 inches, suitable for printed circuit board mounting. This model serves as an audio input, line matching, or isolation transformer.
Feature Summary
- Epoxy potted construction within a molded case
- Pin-type connections for PCB mounting
- Designed for push-pull tube output applications
Applications
- Push-pull tube output circuits
- Audio input stages
- Line matching applications
- Signal isolation tasks
Procurement Notes
Verify the specific suffix designation against official Hammond Manufacturing documentation to confirm bulk packaging specifications. Ensure compatibility with existing circuit requirements regarding power handling and frequency response before procurement. Cross-reference manufacturer part numbers with distributor listings to validate authenticity and technical compliance.
Selection Notes
Select this component when replacing transformers in vintage or specialized audio equipment utilizing push-pull tube architectures. Evaluate the 150-milliwatt rating against system power demands. Confirm that the pin dimensions align with available PCB footprints. Consider the epoxy potting for environmental protection needs during installation.
Part Context
This transformer belongs to Hammond Manufacturing's range of audio components, specifically engineered for tube-based amplifier designs. The product line supports various audio signal processing roles, including input coupling and output stage integration. These units are characterized by their robust mechanical construction and reliable electrical performance in analog audio environments.
Replacement Considerations
Consult official Hammond Manufacturing substitution guides for verified equivalent part numbers. Do not assume cross-compatibility with generic audio transformers without verifying pinout and electrical parameter alignment.
