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1.整流二极1n4007铅超标属ROHS豁免条款那一条;可控硅STML7805CVTO220铅超标属于ROHS豁免条款那一条款1.整流二极1n4007do41铅超标属ROHS豁免条款那一条2.可控硅STML7805CVTO220铅超标属于ROHS豁免

题目详情
1.整流二极1n4007 铅超标属ROHS豁免条款那一条;可控硅STM L7805CV TO 220铅超标属于ROHS豁免条款那一条款
1.整流二极1n4007 do 41铅超标属ROHS豁免条款那一条
2.可控硅STM L7805CV TO 220铅超标属于ROHS豁免条款那一条
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答案和解析
7 - lead in high melting temperature type solders (i.e.lead-based alloys containing 85 % by weight or more lead)
- lead in solders for servers,storage and storage array systems,network infrastructure equipment for switching,signalling,transmission as well as network management for telecommunications
- lead in electronic ceramic parts (e.g.piezoelectronic devices).
含铅超过85%的高熔点焊锡.内部都是这个
TO220钎焊丝也是含铅92.5%的焊锡.