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Product Detailed Parameters
- Description：RECEIVER
- Series：TWFK
- Mfr：Knowles
- Package：Bulk
- Type：Receiver
- Technology：-
- Impedance：38.5 Ohms
- Power - Max：-
- Shape：Rectangular
- Termination：Solder Pads
- Size / Dimension：0.197" L x 0.107" W (5.00mm x 2.73mm)
- Height - Seated (Max)：0.154" (3.90mm)
- Frequency - Self Resonant：-
- Efficiency - dBA：100
- Efficiency - Testing：-
- Efficiency - Type：Sound Pressure Level (SPL)
- Port Location：Top
- Material - Cone：-
- Material - Magnet：-
- Ingress Protection：-
- Ratings：-
- Frequency Range：200 Hz ~ 6.7 kHz
- Power - Rated：-
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Overview
The TWFK-32689-000 is a subminiature receiver speaker manufactured by Knowles. It features a rectangular form factor with dimensions of 5.00mm in length and 2.73mm in width, and a maximum height of 3.90mm. The component operates within a temperature range of -17°C to 63°C. Its electrical characteristics include an impedance of 38.5 Ohms and a frequency response spanning from 200 Hz to 6.7 kHz.
Feature Summary
- Designed for premium audio performance in very small form factors
- Utilizes proprietary Pantograph, Ferrofluid, and D-Amp technologies
- Provides high output levels suitable for hearing instrument applications
Applications
- Hearing instruments
- Medical devices requiring compact receivers
- Audio equipment with space constraints
Procurement Notes
Verify the specific datasheet version and ordering suffixes directly with Knowles or authorized distributors. Confirm that the 38.5 Ohm impedance and rectangular package dimensions match your design requirements. Ensure compliance with RoHS standards as indicated in official documentation before finalizing procurement.
Selection Notes
Select this component when a high-output receiver is needed in a subminiature rectangular package. The 38.5 Ohm impedance should be matched to the driving circuitry. Consider the operating temperature range of -17°C to 63°C for environmental suitability. Verify compatibility with hearing aid or medical device architectures requiring precise acoustic output.
Part Context
This part belongs to Knowles' subminiature performance microphone and speaker portfolio, designed for applications demanding premium audio quality in compact spaces. The TWFK series represents specialized acoustic components engineered for high reliability and specific electroacoustic performance metrics required in professional and medical audio sectors.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided data. Consult Knowles engineering for direct replacements or cross-references based on specific impedance and dimensional tolerances.
