靜(jing)電(dian)(dian)保(bao)護器(qi)件（ESD二極管）選型選用(yong)過程中，重點需要關(guan)(guan)注的(de)參(can)數(shu)(shu)有：反(fan)向(xiang)(xiang)截(jie)止電(dian)(dian)壓(ya)、擊穿電(dian)(dian)壓(ya)、鉗位電(dian)(dian)壓(ya)、峰值(zhi)脈沖電(dian)(dian)流、結電(dian)(dian)容等(deng)(deng)等(deng)(deng)。靜(jing)電(dian)(dian)保(bao)護元(yuan)件選型第一步需要確認的(de)就是反(fan)向(xiang)(xiang)截(jie)止電(dian)(dian)壓(ya)，ESD保(bao)護器(qi)件的(de)反(fan)向(xiang)(xiang)截(jie)止電(dian)(dian)壓(ya)比較低，一般是根(gen)據芯片電(dian)(dian)壓(ya)來設計的(de)，有2.8V、3.3V、5V、6V、12V、15V、24V、36V等(deng)(deng)等(deng)(deng)。關(guan)(guan)于靜(jing)電(dian)(dian)保(bao)護器(qi)件反(fan)向(xiang)(xiang)截(jie)止電(dian)(dian)壓(ya)參(can)數(shu)(shu)怎么看呢？以ESD保(bao)護器(qi)件品牌(pai)廠家東(dong)沃電(dian)(dian)子（DOWOSEMI）推(tui)出的(de)SD12T1G為(wei)例，查看“ESD-SD12T1G Datasheet”可知其參(can)數(shu)(shu)詳情如下(xia)：

√ Peak Pulse Power (8/20μs)峰(feng)值脈沖功率: 400W

√ Peak Pulse Current (8/20μs)峰值脈沖電(dian)流: 18A

√ Operating voltage反向截止電壓: 12V

√ Breakdown Voltage (IT = 1mA)擊(ji)穿(chuan)電壓: 13V

√ Clamping Voltage (IPP = 18A)鉗位電壓: 20V

√ Reverse Leakage Current (VRWM = 12.0V)漏電(dian)流: 0.5μA

√ Junction Capacitance (VR = 0V, f = 1MHz)結電容: 15pF

√ ESD per IEC 61000?4?2 (Air): ±30kV

√ ESD per IEC 61000?4?2 (Contact): ±30kV

√ Operating Temperature Range工作(zuo)溫度范圍(wei): ?55°C to +125°C

√ Storage Temperature Range存儲溫度(du)范圍: ?55°C to +150°C

√ Device Marking Code絲印代(dai)碼: 12B

√ Package封(feng)裝: SOD-323

√ Packaging包(bao)裝: 3000/Tape & Reel

具體詳情，可見“ESD-SD12T1G Datasheet”數據手冊。ESD靜電保護器件(jian)SD12T1G是款暢銷、成熟型物料，保護器件品牌東沃電子常年備貨、貨源穩定、交期迅速、品質卓越、廠家價格、支持少量試產，竭誠歡迎廣大新老客戶帶料前來詢價：137 5773 6996（微信同號）余經理。