Sale Office 66-9 Factory

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???????????? ????????
Sale Office ???????????66-9? Factory ?????????3
40?6? E-mail composfi_at_ms52.hinet.net Homepagehtt
p//www.sfi.com.tw
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Transient Voltage Suppressors
Multilayer Surface Mount TVS

• High Reliability and Stable Supply

• ?????????????

• SFI is a world leader in SMD technology

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????(?)
TVS ???????????????????,???????
Termination Edge
????
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????(?)
TVS????????????,?????????? ?????,???????
Inner electrode
???
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????(?)
????? ???????(TVS),??????????????????????
??,??????????????TVS????????(?109O??35O)?????????
????????,???????????????,???????????


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????(?)
SFI??????????????????????????????????????????,????
?????????
Protected Load
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????
??TVS???,?????????????,??????????
EMC
TVS
Diode
Capacitance
Single component solution
3 components solution
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????
??TVS???,?????????????,??????????
L
Rv
R
C
L Body Inductance
C Device Capacitance
Rv Voltage Variable Resistor
R Insulation Resistor
TVS Equivalent Model
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????TVS ?
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Surge ?ESD????
??
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???? TVS FOR Surge?? ?

• ??????????????????TVS ?
• ????Breakdown Voltage?
• ??????????????????
• ?????????????VARISTOR?I-V???????Vclamp(Clamp
  voltage)?Vclamp??????(Iclamp)?
• ?Vclamp?Iclamp??????(820µs)???????VARISTOR??????(
  joules)?
• ????????(joules)???VARISTOR?????,????????

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???? TVS FOR ESD?? ?

• TVS?????(Capacitance)?I/O????
• ????(Working Voltage)??????????
• ???(Leakage Current)????(??????)
• ????(Clamping Voltage)?????????
• ????(Response time)lt 1 nS
• ????(Bi-directional Protected)
• ?????(ESD Withstands)????

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????(?)
C ? ? ? ?
? ? ? ? ? ?????0402?2220( ?? ) ? ???????? ?
????????????SMD??? ? ???????2.5V60V ?
???????8.8?? ? ??????????? ? ???????? ?
??????????? ? ??????? ? ????????,???? ?
?????????????????????
Normal State
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????(?)
A ? ? ? ?
???? ??????1206?2220( ?? ) ????????? ??????????
???SMD??? ???????????12V24V ???????????? ??????,?
?????????? ????,?????????? ?????????? ?????????? ?
???????????????? ??????????????? ?????????????????
?????.
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????(?)
E ? ? ? ?
? ? ? ? ? ?????0402?0603( ?? ) ? ???????? ?
????????????SMD???,??ESD ? ??????????? ? ????(2.5
pF)?????(Response time ??0.5 nS) ? ??????????? ?
???????,????(0.1 uA at Working Voltage)) ?
?????(High Insulation Resistance) ?????????,???? ?
????????????????????? ??? IEC61000-4-2 Level 4
15KV/8KV 
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How to Order C, A Series
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How to Order E Series
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????

• ?????
• ? ? ? I-Phone???????
• ???? ? ???????????????
• ???? ? ??????????????
• ???? ? ????????????????????PDA
• ???? ? ??????????

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??-????????

• ?????????8KV(Level 4)??
• RF?????? or SAW?????
• Speaker, Microphone,
• Earphone Jack ???????
• COG, LCM Driver ??
• ????????
• I/O??????????

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?RD??
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?????
1.??TVS?,????????????????????????????????? 2.??TVS
?,????????????????????? 3.??????????,????TVS?????
4.??TVS?,TVS???????????????????????? 5.?????????(
?ESD?? )???????
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???????????

• ????????????????ESD?????
• ???????????????
• ??PCB???,????Layout ESD???????,????????Relayout,??
  ??????MLCC????????.
• ??ESD??????

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????????????

• ????????????Clock,Reset???PCB??????
• PCB??????????Ground?
• ???????????,????????????ESD?????????,????????????
• ????????????ESD???
• ????????????????????,??????????????,???,??????ESD?
  ????
• ??I/O Port?ESD?? ,???????????TVS,????????????

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QA??