2403-260-00001 Datasheet, PDF (9/19 Pages) Knowles Electronics – 11x15x3.5 MM SPEAKER

2403-260-00001
3.3. Electro-acoustic characteristics acc. IEC 268-5
3.3.1. LOUDSPEAKER IN 1cm³ MEASUREMENT ADAPTER ACC. TO 3.4
1. RATED IMPEDANCE
2. VOICE COIL RESISTANCE
3. RESONANCE FREQUENCY
4. MAXIMUM LINEAR EXCURSION
5. CHARACT. SENSITIVITY (1W in 1m)
average from 2kHz to 5kHz
6. THD
7. RUB & BUZZ
at 350mW
Z:
R:
f₀:
Xmax:
8Ω
7.4Ω ± 10%
800Hz ± 7.5%
+/- 0.30mm
73 ± 2dB
according to Sheet 190 - 3
no audible rub & buzz
3.3.2. LOUDSPEAKER IN BAFFLE WITHOUT BACK CAVITY
1. TYPICAL RESONANCE FREQUENCY
f₀:
450Hz
3.3.3. Loudspeaker mounted in Lifetime test device (closed Box 2ccm, open front)
Signal IEC268-1 with high-pass 12dB/Oct. at 800Hz, crest factor 2, used for all operating lifetime tests
1. MAX.SHORT TERM POWER 1sec ON, 1min. OFF, 60 cycles
Ambient temperature 70°C
1000mW
2. MAX LONG TERM POWER 1min ON, 2min. OFF, 10 cycles
Ambient temperature 70°C
600mW
3. MAX. NOISE POWER
(PHC continuous) 500h
Ambient temperature 70°C
500mW
Release – Revision: M
Page 9 of 19
©2011 Knowles Electronics