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Micro Speaker - K-40A08A-1
Spec.
ITEM
SPECIFICATIONS
1
Type
Dynamic speaker
2
Dimension
External diameter 40 mm
3
Rated Input Power
1.5 W
4
Impedance
8 ohm ± 15% at 800Hz
5
Resonance Frequency (Fo)
450 Hz ± 20% at Fo, 1V
6
Sensitivity (S.P.L.)
74 dB(W/m) ± 3 dB at AVE 0.8K,1.0K,1.2K,1.5KHz.
95dB (1.5W/0.1m) ± 3 dB
7
Frequency Range
Fo – 5KHz
8
Distortion
Less than 5 % at 800Hz,1.5W
9
Max. Input Power
Must be normal at 1.8W white noise for 1 minute.
10
Voice Coil
Diameter 10.25 mm
11
Magnet
Rare earth permanent (Nd-Fe-B) magnet Φ9.55 x 1.3 mm
12
Weight
8.3g ± 0.4g
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 – 1.5W
15
Buzz, Rattle, etc.
Should not be audible at 3.46V 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℃
