BeStar SMS2020-08H4.5 LF - Manual (Page 2)

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1.Description
1.1 Upper sound port
1.2 Reflowable(Conforms to EIAJ ED-4702)
1.3 Flat frequency response with a greater sound volume
1.4 Excellent durability in severe environment(storage temperature:
-40 °C to +105°C)
www.be-star.com [email protected]
Drawn by:
Drawn Rev. Date Approved by:
Checked by:
Note
Date:
Page:02 of 08
A
2.Characteristics
2.1 Electrical and Mechanical Characteristics
No. Item Specification
1. Dimension 20 x 20 x 4.5 (square)
2. AC Impedance 8Ω ±20%
3. Rated Input Power 0.5W(2.0Vrms)
4. Max Input Power 1.0W(2.83Vrms)
5. Resonance Frequency 850Hz ±20%
6. S.P.L
93±3dB/0.5W/0.1m at 0.8,1.0,1.5,2.0KHz average
7. THD 800Hz
≤30%,800-1.5KHz slope from 10%,
1.5K-8KHz
≤10%
8. Buzzes & Rattles Must be normal at sine wave 2.0Vrms
9. Polarity Positive voltage to (+),Diaphragm moves forward
10. Operating Temperature -40~+ 85 °C
11. Storage Temperature -40~+ 105 °C
12. Weight ~3.0g
Speaker
2012/02/01
2012/02/01
郭 敏
王文邦
王文邦 李红元
SMS2020-08H4.5 LF
DRG NO: BS/TES01.990A
SMS2020-08H4.5 LF
博 士 達
Speaker
Mic Audio
Analyser
Power Amplifier
10cm
0
.5
W
(2
.0
V
rms)
2.2 Test Method
Anechoic chamber