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Micro Speaker - K-23A08B-0
Spec.
ITEM
SPECIFICATIONS
1
Type
Dynamic speaker
2
Dimension
External diameter 23 mm
3
Rated Input Power
0.5 W
4
Impedance
8 ohm ± 15% at 2KHz
5
Resonance Frequency (Fo)
670 Hz ± 20% at Fo, 1V
6
Sensitivity (S.P.L.)
80dB(W/m) ± 3 dB at AVE 1.0K-2.0K(Hz).
92dB(0.5W/0.1m) ± 3 dB
7
Frequency Range
Fo – 20KHz
8
Total Harmonics Distortion
Less than 8 % at 1KHz,1.0V.
9
Max. Input Power
Must be normal at 0.7W white noise for 1 minute.
10
Voice Coil
Diameter 10.5 mm
11
Magnet
Rare earth permanent (Nd-Fe-B) magnet Φ9.5 x 1.5 mm
12
Weight
4.1g ± 0.3g
13
Appearance
Should not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc.
14
Operation Test
Must be normal at program source –0.5W
15
Buzz, Rattle, etc.
Should not be audible at 2.0V sine Wave between Fo to 20KHz
16
Polarity
When positive voltage is applied to the terminal marked (+), diaphragm should move to the front.
17
Terminal Strength
Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection.
18
Temperature
Operating temperature: -20℃ to +60℃
Storage temperature: -30℃ to +70℃