SPECIFICATION FOR APPROVAL
規
Customer (客戶名稱)：
Customer P/N(客戶番號)：
Our P/N (本廠番號)：
Approval Date(日期)：
格
書
28M03-8T-H52-L70
2019.03.11
Environment Request(環
境 標 准)：
□
Non-RoHS (非 RoHS
標準)
□REACH
(REACH
標準)
■
RoHS (RoHS
標準)
□
Others (其他)
CUSTOMER’S APPROVED SIGNATURE
泰州福聲電子科技有限公司
Adds:
地址：
Taizhou Fusheng Electronic Technology Co.,Ltd.
No168 of FengHuang Road West,Hailing District ,Taizhou .
江 蘇 省 泰 州 市 海 陵 區 鳳 凰 西 路
168
號
Fax: +86-523- 81601108
E-mail:
sales@electronic-tech.cn
CHECKED
Larry Zhou
2019-03.11
APPROVED
Larry Zhou
2019-03.11
Tel: +86-523-86219066
Http://www.tzfsdz.com
DESINGER
SIGNATURE
DATE
Yuemei Cui
2019-03.11
Alteration History
Speaker
Part
No.
Customer No
顧客型號
Our Part No
本廠編號
Item
項目
Rated Imp
共稱阻抗
Resonance Freq
最½共振周波數
Output S.P.L.
出力音壓
Rated Power
定格入力
Max Power
最大入力
Frequency Range
實效頻寬
Operation
可靠性試驗
Buzzes & Rattles
異常音試驗
T
H D
失真
Magnet
磁鐵
Operating
Temperature
動½溫度
Storage
Temperature
儲存溫度
Weight
重量
NdFeB
-20℃ to +50℃
Specification
Customer code
顧客編號
28M03-8T-H52-L70
Specification
規格
8ohm±15%
700Hz±20%
90±3dB
at
at
2W
3W
Revision
版本
Testing Condition
測試條件
At 1kHz 4Vrms
Without Baffle
A
No.
1.
2.
3.
4.
5.
6.
7.
At 0.1m 0.1w 0.8,1.0,1.2,1.5KHz
Average
at
at
4Vrms
4.89 Vrms
FO----10kHz
Must Be Normal at
Rated Frequency Range
Should not be audible buzz
and rattle at Rated
Frequency Range
無異常聲
10% Max
Program Source 2W
FO----10kHz
Sine Wave Between (正弦波入力 )
at 4Vrms / FO----10kHz
Rated Power Input 1000Hz
8.
9.
10.
11.
12.
-30℃ to +60℃
13.
5.85g/PC
2/5
14.
15.
16.
17
18.
19.
20.
Must be normal after having been in a test chamber for 96 hours at
the condition of-20℃±2℃ and then left 2 hours in a room.
( -20℃±2℃,96
小時試驗室溫兩小時後,無異常)
Must be normal after having been in a test chamber for 96 hours at
the condition of+50℃±2℃ 90~95% R.H and then left 2 hours in a
Heat Test
耐熱試驗
room.
(+50℃±2℃ 90~95% R.H96
小時試驗常溫
2
小時後,無異常的不良)
Must be normal after load test :white noise 2W 96 hours. At rated
Load Test
frequency range
連續負荷試驗
(½噪音 2 W
連續
96
小時試驗後無異常的不良)
Test for 1 hour under maximum power. Input shall be white noise in
Short Term
rated frequency response. And the signal will be 1 second on, 59
Maximum Power
seconds off, total 60 cycles at rated frequency range, Must be
test
normal after the test
瞬間最大功率測試
(½噪音 3W，1
秒開
59
秒關，連續
60
迴圈，試驗後無異常之不良)
When a DC source
′
s "+" polarity is attached to speaker's "+"
Polarity
polarity,"-" polarity is attached speaker's "-" polarity, the membrane
極性
will move forward. Red wire is “+”and the black wire is”-“.
(接線板由側為正極,左側為負極)
Drop the speakers contained in normal box onto a board 5mm thick
Drop Test
2 times from a height of 1.0m . Must be normal after the test
跌½試驗
(在厚 5mm
的木板上從
1.0m
的高度跌½
2
次,無異常不良)
A static load of 5.0N shall be applied to the terminals for 10s in any
Terminal strength direction between terminal block and frame and between terminal
block and fasten terminal. Must be normal after the test
端子強度
(端子板和支架或焊片任一方向上 5.0N
的力
10s
無異常)
Cold Test
耐寒試驗
Temperature Cycle Test(5 cycle)
T (℃ )
te m p e ra tu re g ra d ie n t:1 ~ 3
℃
/m in
4 5 m in u te s
4 5 m in u te s
+50
℃
+25
℃
-2 0
℃
4 5 m in u te s
1 c y c le
t(h o u r)
3/5
Frequency
Response
Microchip MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
