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K4000004 is listed in the Audio Transformers range at ChipApex. The manufacturer field lists Prowave. Its product description is Transformer, Matching, 40kHz, 6m. Review the specifications below when checking this part for your BOM.
Audio Transformers specifications for K4000004
- Description：Transformer, Matching, 40kHz, 6m
- Series：-
- Mfr：Prowave
- Package：Tray
- Mounting Type：Through Hole
- Size / Dimension：0.327" L x 0.311" W (8.30mm x 7.90mm)
- Height - Seated (Max)：0.394" (10.00mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：1:10
- Impedance - Primary (Ohms)：-
- Impedance - Secondary (Ohms)：-
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Impedance Matching
- Frequency Range：40kHz
- Frequency Response：-
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：-
- Operating Temperature：-
- Approval Agency：-
Audio Transformers datasheet and documents for K4000004
Audio Transformers Overview
The Prowave K4000004 is an impedance matching audio transformer designed for a specific operating frequency of 40kHz. It features a 1:10 turns ratio and is constructed for through-hole PCB mounting with PC pin terminals. The component exhibits a minimum variable inductance of 6mH and maintains a minimum unloaded Q factor of 90. It operates within a temperature range of -40°C to 85°C and complies with RoHS directives.
Audio Transformers Feature Summary
- Impedance matching design optimized for 40kHz operation
- 1:10 turns ratio for signal transformation
- Through-hole mounting configuration with PC pins
Audio Transformers Applications
- Matching with 400PT16P transducers
- Matching with 400PT16M transducers
- Matching with 400EP18A transducers
Audio Transformers Procurement Notes
Verify the exact transducer model compatibility, as this transformer is specifically matched for 400PT16P, 400PT16M, or 400EP18A units. Confirm that the 40kHz frequency requirement aligns with the system design. Ensure through-hole mounting space accommodates the specified dimensions of 8.30mm x 7.90mm x 10.00mm maximum height.
Audio Transformers Selection Notes
Select this component when a fixed 1:10 impedance transformation is required at 40kHz. The high unloaded Q of 90 suggests suitability for applications demanding efficient energy transfer at the target frequency. Consider the physical size constraints for PCB layout, as the through-hole package requires specific clearance around the mounting area.
Audio Transformers Part Context
This part belongs to the Prowave audio and signal transformer series. It serves as a specialized matching component rather than a general-purpose transformer. Its primary function is interfacing specific ultrasonic or acoustic transducers with driving circuits, ensuring optimal power transfer at the designated 40kHz resonant frequency.
Audio Transformers Replacement Considerations
Direct substitutes are not publicly confirmed. Any replacement must match the 40kHz frequency, 1:10 ratio, 6mH inductance, and 90 Q factor. Verify mechanical fit for through-hole mounting and ensure thermal ratings cover -40°C to 85°C.
Audio Transformers FAQ
What is the maximum height of the K4000004 transformer?
The maximum height is 0.394 inches (10.00mm).
Is the K4000004 RoHS compliant?
Yes, the component is RoHS compliant.
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