This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
and shall not be used in whole or in part without its written content
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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)
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Page:02 of 08
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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
0.5W(2.0Vrms)
2.2 Test Method
Anechoic chamber