| ITEM |
|
SPECIFICATIONS |
| 1 |
Type |
Dynamic speaker |
| 2 |
Dimension |
External diameter 12 mm |
| 3 |
Rated Input Power |
0.5W (Long Time) |
| 4 |
Max. Input Powe |
0.7W (Short Time) |
| 5 |
Impedance |
8 ohm ¡Ó 15% at 1500Hz. |
| 6 |
Resonance Frequency (Fo) |
900Hz ¡Ó 20% at Fo, 1V |
| 7 |
Sensitivity (S.P.L.) |
84dB (0.1W / 0.1m) ¡Ó 3 dB at AVE 1.2K 1.5K 2.0K 2.5KHz. |
| |
|
88dB (0.5W / 0.1m) ¡Ó 3 dB |
| 8 |
Frequency Range |
Fo ¡V 20KHz |
| 9 |
Total Harmonics Distortion |
Max 8 % at 1 KHz,0.5W. |
| 10 |
Voice Coil |
Diameter 6.5 mm |
| 11 |
Magnet |
Rare earth permanent (Nd-Fe-B) magnet £X5.9 x 1.0 mm |
| 12 |
Weight |
1.0g ¡Ó 5%g |
| 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 ¡V 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¢J to +60¢J |
| |
|
Storage temperature: -30¢J to +70¢J |
