SR8850NWS-000

Overview

The Knowles SR8850NWS-000 is a balanced armature receiver featuring a top port design. It operates within a frequency range of 100 Hz to 4.66 kHz and delivers a sound pressure level of 114.5 dB. The unit has an impedance of 27.8 Ohms and utilizes a round, face-port configuration. It employs solder pad termination for panel mounting. The component measures 8.84 mm in diameter and functions reliably across a temperature range of 0°C to +63°C.

Feature Summary

• Balanced armature transducer technology
• Top port acoustic design
• High sensitivity output

Applications

• Hearing aids
• Medical audio devices
• Communication headsets

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Knowles or authorized distributors before integration. Confirm that the 27.8 Ohm impedance matches your circuit requirements. Ensure the panel mount dimensions align with your enclosure design. Check for any recent manufacturing changes that may affect acoustic performance or physical tolerances.

Selection Notes

Select this model when high sound pressure levels are required in a compact form factor. The balanced armature type offers efficient power conversion suitable for battery-operated devices. Consider the top port orientation for directional sound projection needs. Verify thermal stability requirements against the specified operating temperature range.

Part Context

This component belongs to the SR series of receivers from Knowles. It is designed for applications requiring precise audio reproduction in small spaces. The balanced armature architecture distinguishes it from dynamic drivers, offering different acoustic characteristics suited for professional and medical audio equipment.

Replacement Considerations

Check for direct substitutes within the SR series that match the 27.8 Ohm impedance and 114.5 dB sensitivity. Ensure any replacement maintains the same top port configuration and physical dimensions for compatibility.