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我司长期生产销售贴片式开关二极管CD4148系列,
片式二极管(厚膜封装CD4148)
1>．拋料率低:革命性的封装形式,适用于高速贴片,使用贴片式CD4148二极管不会有抛料问题,现各厂商普遍使用之产品为圆柱的Mini MELF,抛料率达到20%以上,贴片式CD4148二极管之抛料率都在0.2%以下,相差达到100倍,为各厂商节省大量的重工时间及费用.
2>．信赖性高:由于芯片焊接方式的差异,产生不同的信赖性差异,MELF产品为点接触(point contact),没有焊接,当二极管产生热时,将造成讯号断续现象,贴片式CD4148二极管使用银膏焊接,接触点很完整,因此不会有此现象发生.
3>．厚度很薄:现在科技产品都追求轻薄短小,贴片式CD4148二极管是跨时代的产品,其厚度只有Mini MELF的一半,在手机、数码像机、PDA、玩具、电子表等要求小型化的产品,提供一项极佳的选择.贴片式CD4148二极管1206的尺寸和Mini MELF相差不多(厚度除外),在PC板Layout上完全兼容,不需更改图面,0805和Micro MELF则有些不同,铜箔需加大一点.而其尺寸大小和贴片电阻、贴片电容完全相同,PC板设计上更美观,在自动化插件机的使用上更可同时使用同一部机器操作,更为方便.
◆特点Features:
1>．符合ROHS指令要求;等同于1N4148电子特性;
2>．最先进的大批量生产方式,可大幅度降低采购成本;
3>．FHD4148 1206 可直接代替LL-34;
4>．适应再流焊与波峰焊;
5>．端头强度可达到GB/T4937-1995 2mm标准,彻底杜绝了之前同类产品抗弯强度差的问题;
优势:扁平塑料封装贴片二极管CD4148,产品设计新颖超薄,焊接方便快捷,抛料率低,提高生产效率,降低成本,环保无铅,具SGS报告,符合ROHS标准,是追求高效益厂家的最好选择.
贴片开关二极管 CD4148为什么客户难接受呢?
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@sumzi888
为什么呢楼主
厚膜工藝源自數十年前日本羅姆公司所開發的平板片式電阻,工藝至今非常成熟,如今將碳晶棒改為各種二極管芯,例如較常見的有:(4148/zener /schottky/整流....)封裝而成, 以陶瓷片為基材散熱佳,塗覆上環氧樹脂可以通過SGS,與無鉛高溫回流焊錫 260度C 10秒,常見的平板式貼片二極管封裝方式有1206/0805/0603 可以直接替代LL-34 MELF SOD-123 SOD-323使用,不需更改電路板,採用日本羅姆公司專用4148芯片封裝,500MA 可以耐1-3小時, 750MA 可以耐5-15分鐘 1500MA耐1.0秒 3000-4000MA耐8.3MS 性價比是已知各種封裝平板式貼片器件中最佳需要樣品聯繫MSN:gamachen2001@hotmail.com
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BAS70
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1.5SMCJ18CA
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1.5KE18CA
1.5KE91A
1.5KE120A
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1.5KE150CA
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KBJ2506
KBJ2508
1SS356
PJSD05
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1N4148
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LL4150
LL4148
MM4148
BAV102
BAV103
MCL4148
BAV302
1N4148W
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MMBD4148TS
BAV21W
BAV99
BAS16
BAS21
BAW56
BAV70
MMBD4148
MMBD914
1SS355
MMBD4148TS
1SS400
BC856A
MMBT3904
MMBT3906
MMBT3904W
MBT3906W
MMBT2907A
MMBT2222A
MMBT2222AW
MMBT4401
MMBT4403
BC807-16
BC847B
BC847C
BC857C
PJP75N75
TL431
P[J431CX
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