'customer:金鸿盛电器
part no: swt1775+4005ra
product: magnetic buzzers
lesin part no:ls1740-4005wb
technical terms
resonant frequency (khz)
4.0±0.5
rated voltage (vp-p)
5
operating voltage (vp-p)
1~30
max. current consumptionat rated voltage(ma)
5.0
capacitance at 1000hz (pf)
15000±30%
min. sound output at 30cmat rated voltage(db)
85
operating temperature (0c)
-20~+70
storage temperature (0c)
-30~+80
housing material
abs(black)
buzzer
soldering process
soldering  parameter
temp.(0c)
time(sec.)
times
inclusive lead
 
reflow soldering
230±10
above  1700ctime 40~70
2
wave soldering
245±5
3~6
1~2
manual soldering
330±10
1~2
1~2
lead free
 
reflow soldering
245±15
above  1800ctime 40~70
3
★
wave soldering
260±5
4~8
2~3
★
manual soldering
350±10
1~3
2~3
'

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东莞市力声电子制品厂
胡先辉
13924339516
东莞市东莞市大岭山镇科技工业园区