| ITEM |
|
SPECIFICATIONS |
| 1 |
Type |
Dynamic speaker |
| 2 |
Dimension |
External diameter 13 mm |
| 3 |
Rated Input Power |
0.5 W |
| 4 |
Impedance |
32 ohm ¡Ó 15% at 2K Hz |
| 5 |
Resonance Frequency (Fo) |
1000 Hz ¡Ó 20% at Fo, 1V |
| 6 |
Sensitivity (S.P.L.) |
70dB(W/m) ¡Ó 3 dB at AVE 1.2K,1.6K,2.0K,2.5K Hz. |
| |
|
86dB(0.5W/0.1m) ¡Ó 3 dB |
| 7 |
Frequency Range |
Fo - 20KHz |
| 8 |
Total Harmonics Distortion |
Less than 8 % at 1 KHz ,1.0V. |
| 9 |
Max. Input Power |
Must be normal at 0.8W White Noise for 1 minute. |
| 10 |
Voice Coil |
Diameter 7.2 mm |
| 11 |
Magnet |
Rare earth permanent (Nd-Fe-B) magnet £X6.5 x 1.0mm |
| 12 |
Weight |
1.0g ¡Ó 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 4.0V 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 |
