Joaloka sesebelisoa se sireletsang, li-tubes tsa TVS li ka thibela ka katleho ho senyeha ha motlakase le ho sireletsa lipotoloho.Ha u khetha li-tubes tsa TVS, tlhokomelo e tlameha ho lefshoa ho li-parameter tsa tsona tse amehang, ho seng joalo mathata a sa lebelloang a ka hlaha.VRWM, VBR, Vc, Ipp, Cd ke liparamente tsa bohlokoa bakeng sa khetho ea sesebelisoa sa ESD/TVS
Tlhaloso:
VBR: Sebaka seo ho putlama ha voltage @ IT - TVS hang-hang e fetohang ts'ebetso e tlase
VRWM: Boloka motlakase - TVS e boemong boo e seng ba conductive mothating ona
VC: Clamping voltage @ Ipp - Voltage ea Clamping e ka ba 1.3 * VBR
VF: Forward conduction voltage @ IF - Forward voltage drop
ID: Reverse Leakage Current @ VRWM
IT: Teko ea hajoale bakeng sa ho putlama ha motlakase
IPP: Tlhōrō e phahameng ea hona joale
IF: Fetela pele conduction hona joale
Ha IPP ea hona joale ea pulse e nang le nako ea 20mS e phalla ka TVS, pulse voltage e hatelloa ke sesebelisoa sa tšireletso sa ESD, 'me matla a phahameng a tlhōrō a phahameng a hlahang lipheletsong ka bobeli ke VC.VC le IPP li bonts'a matla a khatello ea TVS.(Tlhokomeliso: VC ke motlakase o fanoeng ke diode sebakeng se khaotsoeng, ke hore, motlakase ka TVS nakong ea ESD impulse state.E ke ke ea e-ba kholo ho feta tekanyo ea moeli o lumelletsoeng oa potoloho e sirelelitsoeng, ho seng joalo sesebelisoa se tobana le kotsi ea tšenyo.).
Maximum Reverse Leakage Current @ VRWM
VRWM e bontša hore tlas'a ID e boletsoeng, boleng ba voltage lintlheng tse peli tsa sesebelisoa sa TVS e fetoha matla a phahameng a ho sebetsa ka morao.Hangata VRWM=(0.8~0.9) VBR.Ka voltage ena, tšebeliso ea matla ea sesebelisoa e nyane haholo.(Tlhokomeliso: Ha u khetha mofuta, Vrwm ha ea lokela ho ba ka tlase ho motlakase o tloaelehileng oa ho sebetsa oa sesebelisoa kapa potoloho e sirelelitsoeng. Ka kakaretso, VopONUhangata thepa ke 12V, 'me TVS tube ka kakaretso e khethiloe ho laola VC pakeng tsa 14V le 16V.
Motlakase oo TVS transistor e fetisang teko e boletsoeng ka eona hona joale E, e leng motlakase o tšoailoeng o bontšang ho tsamaisoa ha transistor ea TVS, ke hore, ho tloha nakong ena ho ea pele, sesebelisoa se kena ho senyeha ha avalanche.VBR ke bonyane ba motlakase oa ho senya bakeng sa TVS, 'me ho 25 ℃, TVS e ke ke ea ba le li-avalanche tse ka tlaase ho motlakase ona.Ha TVS e phalla ka 1mA current (IR) e boletsoeng, motlakase o sebelisoang lipalong tse peli tsa TVS ke "voltage e fokolang ea VBR".E le ho finyella maemo a machaba a IEC61000-4-2, diode tsa TVS li tlameha ho khona ho sebetsana le bonyane ba 8kV (contact) le 15kV (air) ESD impacts.Baetsi ba bang ba semiconductor ba sebelisitse litekanyetso tse phahameng tsa ho hanyetsa lihlahisoa tsa bona.Bakeng sa lisebelisoa tse itseng tse nkehang habonolo tse nang le litlhoko tse khethehileng, baqapi ba ka khetha lisebelisoa ho latela litlhoko tsa bona.
Lintlha tse ka holimo ke kakaretso e khutšoanyane ea Li-Parameters tsa Bohlokoa tsa Khetho ea TVS, e ka sebelisoang e le boitsebiso.Khamphani ea rona e na le sehlopha se matla sa tekheniki mme e ka fana ka lits'ebeletso tsa botekgeniki ho bareki.Hajoale, k'hamphani ea rona e na le lihlahisoa tse fapaneng: tse bohlaleonu, puisano ea optical module, optical fiber module, sfp optical module, lisebelisoa tsa olt, Ethernet switch le lisebelisoa tse ling tsa marang-rang.Haeba u li hloka, u ka li utloisisa ka botebo.