SPECIFICATION |
Dimension |
Diameter 50mm / Thickness
10.8mm. |
Impedance. |
8§Ù¡¾10% at 1.0V 1 KHz. |
Output S.P.L. |
85 dB/W (1m) ¡¾ 3 dB at
0.8, 1.0, 1.2, 1.5 KHz. (Average figures). |
Resonant frequency. |
500 Hz ¡¾ 20% at 1.0
V. |
Effective frequency band. |
Fo ~ 3.5KHz. |
Power. |
Nor. 1.5 W. / Max. 2.0 W. |
Distortion. |
Less than 5% at 1. KHz 1.5
W. |
Magnet. |
12.5mm ¡¿ 1.5mm. (Nd-Fe-B) |
Flux density. |
6,600 Gauss (SURFACE). |
Weight. |
15g ¡¾ 1.0g. |
Polarity. |
The left hand terminal
should be MINUS(-). |
Terminal strength. |
1.0 Kg for 30 sec. |
Operation test. |
Must be normal with program
source 1.5 W. |
Buzz & rattle, etc. |
Not be audible at
3.46 V, sine wave, Fo ~ 3.5 KHz. |
Load test. |
(White) noise 1.5 W, 96
Hrs. |
High temperature test. |
+60¡É ¡¾ 3 ¡É 96
Hrs. |
Low temperature test. |
-20¡É ¡¾ 3 ¡É 96 Hrs. |
Operating temp. range. |
High + 60¡É ¡¾ 3¡É Low
-20¡É ¡¾ 3¡É |
Humidity test. |
+40¡É ¡¾ 3¡É 95% 96 Hrs. |