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Table 2

General overview of receiver dimensions. External dimensions are from Knowles [5]. The estimated associated uncertainty is ±10–15%.

Dimensions (mm)
Component Length Width Height Thickness
Armature 5.5 1.5 0.2
Pin 1.1 0.066 ø
Membrane 6.8 2.7 0.1
Hinge 1.4 0.8 0.1
Chassis 7.9 4.1 2.8 0.2
Spout 1.6 1.4 ø 0.2
Magnets 2.0 2.1 0.4
Stack1 2.1 3.3 1.9 0.4
Coil 2.3 2.3 1.2 0.3
1

The term stack refers to the fact that this component is often made of “stacks” of rings to minimize Eddy currents. It is also called the magnet housing.

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