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Product Detailed Parameters
- Description：SPEAKER 7OHM TOP PORT 96.5DB
- Series：SWFK
- Mfr：Knowles
- Package：Bulk
- Type：Receiver, Balanced Armature
- Technology：Magnetic
- Impedance：7 Ohms
- Power - Max：-
- Shape：Rectangular
- Termination：Solder Pads
- Size / Dimension：0.197" L x 0.108" W (5.00mm x 2.73mm)
- Height - Seated (Max)：0.250" (6.35mm)
- Frequency - Self Resonant：-
- Efficiency - dBA：96.5
- Efficiency - Testing：-
- Efficiency - Type：Sound Pressure Level (SPL)
- Port Location：Top
- Material - Cone：-
- Material - Magnet：-
- Ingress Protection：-
- Ratings：-
- Frequency Range：200 Hz ~ 7.7 kHz
- Power - Rated：-
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Overview
The Knowles SWFK-32255-000 is a balanced armature receiver transducer designed for in-ear monitoring applications. It features a rectangular housing with dimensions of 5.00 mm length, 2.73 mm width, and 6.35 mm height. The component operates within a frequency range of 200 Hz to 7.7 kHz and utilizes electromagnetic technology. It has an impedance of 7 ohms and a sound pressure level efficiency of 96.5 dB.
Feature Summary
- Dual balanced armature driver architecture optimized for ultra-high-frequency reproduction
- Rectangular form factor suitable for compact in-ear monitor designs
- High sound pressure level efficiency for clear audio output
Applications
- Professional in-ear monitors (IEMs)
- Ultra-high-frequency audio reproduction systems
- Compact hearing aid devices
Procurement Notes
Verify the specific datasheet version from Knowles official channels before procurement. Confirm mechanical footprint compatibility with PCB design. Ensure supply chain authenticity through authorized distributors only. Check for any recent lifecycle status updates or obsolescence notices directly from the manufacturer.
Selection Notes
Select this component when high-fidelity ultrasonic response is required in constrained spaces. Compare against single-armature alternatives if extended low-frequency performance is needed. Evaluate acoustic chamber integration requirements based on the 7-ohm impedance specification. Consider thermal management needs relative to the electromagnetic driver type.
Part Context
This model belongs to Knowles' specialized speaker and transducer portfolio, specifically targeting the professional audio and medical hearing sectors. It represents a shift towards miniaturized, high-performance acoustic solutions using balanced armature technology rather than dynamic drivers.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult Knowles technical support for direct replacements or pin-compatible alternatives.
