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SMV1206M 参数 Datasheet PDF下载

SMV1206M图片预览
型号: SMV1206M
PDF下载: 下载PDF文件 查看货源
内容描述: 氧化锌 [Zinc Oxide]
分类和应用:
文件页数/大小: 9 页 / 248 K
品牌: CERAMATE [ CERAMATE TECHNICAL ]
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TYPE  
MODEL  
PAGE  
6/9  
SMV1206M□□□KRR  
CITATION  
DATE Feb. 03, 2009  
SUBJECT  
S
o
lde  
ring  
REV.  
C01  
IR reflow Pb Free Process suggestion profile  
(1) The solder recommend is Sn96.5/Ag 3.5 of 120 to 150  
(2) Ramp-up rate (217 to Peak) + 3 /second max  
(3) Temp. maintain at 175 +/-25 180 seconds max  
(4) Temp. maintain above 217 60-150 seconds  
μ
m
10~20  
+20/ -10 time within 5 of actually peak temperature (tp)  
(5) Peak temperature range 245  
seconds  
(6) Ramp down rate +6  
/second max.  
Perform adequate test in advance as the reflow temperature profile will vary according to the conditions of the  
manufacturing process, and the specification of the reflow furnace.  
5.5 Resistance to soldering heat-High Temperature Resistance:260  
5.6 Hand Soldering  
,10sec-3times.  
In hand soldering of the Varistors. Large temperature gradient between preheated the Varistors and the tip of  
soldering iron may cause electrical failures and mechanical damages such as crackings or breakings of the  
devices. The soldering shall be carefully controlled and carried out so that the temperature gradient is kept  
minimum with following recommended conditions for hand soldering.  
5.6.1 Recommended Soldering Condition 1  
1Solder :  
0.12~0.18mm Thread solder (Sn96.5:Ag3.5) with soldering flux in the core. Rosin-based and  
non-activated flux is recommended.  
2Preheating  
The Varistors shall be preheated so that Temperature Gradient between the devices and the tip of  
soldering iron is 150or below.