FK-32628-000

Speakers Overview

The FK-32628-000 is a subminiature receiver speaker manufactured by Knowles, designed for applications requiring premium audio in very small form factors. It utilizes magnetic technology to deliver high efficiency and stability. The component features a rectangular shape with top porting and spring-type terminals. Key electrical specifications include an impedance of 32 Ohms, a rated power of 100 mW, and a sensitivity of 89 dBA at 10mW/10mm. The frequency range spans from 160 Hz to 10 kHz, with a self-resonant frequency of 300 Hz. Physical dimensions are 15.00 mm in length, 8.00 mm in width, and a maximum installation height of 1.50 mm.

Speakers Feature Summary

• Employs balanced-armature magnetic technology for high efficiency and reliability
• Features a compact rectangular design suitable for space-constrained devices
• Includes top porting configuration for directed sound output
• Constructed with a polyester diaphragm and Nd-Fe-B magnet

Speakers Applications

• Medical devices requiring precise audio feedback
• Industrial equipment with limited internal space
• Defense communication systems needing reliable transducers
• Electrification control panels with audio indicators

Speakers Procurement Notes

Verify the current product status before procurement as this specific part number may be discontinued or subject to change. Confirm that the rectangular package and spring-type terminal configuration match your PCB layout requirements. Ensure the 32 Ohm impedance and 100 mW power rating align with your system's driver capabilities. Check for any updated replacement part numbers if this unit is no longer actively produced.

Speakers Selection Notes

Select this component when a subminiature receiver speaker with high sensitivity (89 dBA) is required. The 32 Ohm impedance suits standard low-voltage audio drivers. Consider the 160 Hz to 10 kHz frequency response for voice or alert tones rather than full-range music. The top-port design influences acoustic coupling; ensure adequate clearance above the mounting surface. Verify compatibility with the spring-type terminals during assembly.

Speakers Part Context

This speaker belongs to Knowles' portfolio of advanced micro-acoustic components, specifically within their balanced armature speaker line. These products are engineered for demanding environments in medtech, defense, and industrial sectors. The FK series represents subminiature performance microphones and speakers designed for premium audio quality in minimal footprints, supporting innovation in compact electronic designs.

Speakers Replacement Considerations

Public documentation indicates this product is discontinued. No specific substitute part numbers are confirmed in the provided source material. Consult official Knowles channels for current equivalent recommendations.