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Product Detailed Parameters
- Description：AUDIO XFMR 8 / 70V CHAS MNT
- Series：117
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Chassis Mount
- Size / Dimension：2.810" L x 1.500" W (71.37mm x 38.10mm)
- Height - Seated (Max)：1.690" (42.93mm)
- Termination Style：Solder Lug
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：8
- Impedance - Secondary (Ohms)：70V
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Sound Distribution
- Frequency Range：100Hz ~ 9kHz
- Frequency Response：1dB
- Voltage - Isolation：-
- Insertion Loss：2dB
- Return Loss：-
- Power Level：4W
- Operating Temperature：-
- Approval Agency：-
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Overview
The Hammond Manufacturing 117F4 is a line matching audio transformer designed for sound distribution systems. It operates at a nominal voltage of 70 volts and supports a power rating of 4 watts. The device features an 8-ohm primary impedance and an unspecified secondary impedance configuration suitable for speaker coupling. Electrical performance covers a frequency range from 100 Hz to 9 kHz. Physical dimensions include a chassis mount style with quick connect termination type. The unit weighs approximately 226.796 grams and belongs to the 117 series of audio and signal transformers.
Feature Summary
- Designed for line matching in 70-volt audio distribution networks
- Facilitates coupling between amplifier lines and low-impedance speakers
- Utilizes quick connect terminals for simplified installation
- Constructed for durable chassis mounting applications
Applications
- Public address system speaker integration
- Commercial background music distribution
- Voice evacuation and emergency audio systems
- Multi-zone audio amplification setups
Procurement Notes
Verify the specific datasheet version for the 117F4 to confirm exact secondary impedance values, as public sources vary between 4-ohm and other configurations. Ensure the 70-volt rating aligns with the existing line infrastructure. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement specifications for regulated environments.
Selection Notes
Select this component when a 4-watt capacity is required for 70-volt line matching. Compare against the 117F2 model if lower power handling is sufficient. Verify that the 100 Hz to 9 kHz frequency response meets the audio bandwidth requirements. Ensure chassis mounting space accommodates the physical dimensions and weight of the unit.
Part Context
The 117F4 belongs to the Hammond 117 series of audio and signal transformers. This series provides various power ratings and voltage configurations for professional audio installations. The product falls under the broader category of industrial control and audio transformers manufactured by Hammond Manufacturing.
Replacement Considerations
The 117F2 serves as a lower-power alternative within the same series. Cross-reference technical specifications carefully to ensure compatibility with existing 70-volt line architectures and speaker impedances.
