Datasheet

ITEMS SPECIFICATIONS
1. DIMENSIONS
2. IMPEDANCE
ø 50mm
8 ± 15% ohm ( 1 khz 1.0V )
3. INPUT
4. LOWEST RESONANT FREQUENCY
5. SOUND PRESSURE LEVEL
6. EFFECTIVE FREQUENCY RANGE
7 MAX. INPUT POWER
8. OPERATION
9. DISTORTION FACTOR
10. BUZZ & RATTLE TEST
11. VAS
12. POLARITY
14. WEIGHT
15. DROP TEST
13. MAGNET
16. LOAD TEST
17. HIGH TEMPERATURE TEST
19. Operation Temperature
18. HUMIDITY TEST
RATED 0.25 w , MAX. 0.5 w
550Hz ± 20% ( 1.0 V )
0.5 W MUST BE NORMAL AT A WHITE
NOISE FOR ONE MIN.
84dB± 3 dB/w ( 1 w , 1 m)AVERAGE
AT 0.6; 0.8 ; 1.0 ; 1.2 KHz
FO ~ 4.5 K Hz
WHEN A POSITIVE DC CURRENT IS APPLIED
TO THE TERMINAL MARKED +, THE DIAPHRAGM
SHALL MOVE FORWARD
0.25 W
< 5% MAX (AT 1.0KHz 0.25W 1M)
1.41 V FO ~ 4.5 KHz
LITERS
At ( 0.25 W ) WHITE NOISE IS APPLIED BOX ONTO
THE SPEAKER MUST MEET ITEM 10 AFTER TEST
ø 32 × 6mm
Approx. 48g
DROP THE SPEAKER CONTAINED IN NORMAL
-10 ~ 60°C
MEET ITEM 4. & 9. AFTER TEST.
+40°C ± 3°C 90% R.H. (96 Hr) AND
LEFT (1Hr) IN A ROOM. THE SPEAKER MUST
MEET ITEM 4. & 9. AFTER TEST.
+70°C ± 3°C 50% R.H. (96 Hr) AND
LEFT (1 Hr) IN A ROOM. THE SPEAKER MUST
BOX ONTO A BROAD 5MM THICK 18 TIMES
FROM A HEIGHT OF 1M.