二極管種類有很多

1、二極管種類有很多，按照所用的半導(dǎo)體材料，可分為鍺二極管（Ge管）和硅二極管（Si管）。根據(jù)其不同用途，可分為檢波二極管、整流二極管、穩(wěn)壓二極管、開關(guān)二極管等。按照管芯結(jié)構(gòu)，又可分為點(diǎn)接觸型二極管、面接觸型二極管及平面型二極管。點(diǎn)接觸型二極管是用一根很細(xì)的金屬絲壓在光潔的半導(dǎo)體晶片表面，通以脈沖電流，使觸絲一端與晶片牢固地?zé)Y(jié)在一起，形成一個(gè)“PN結(jié)”。由于是點(diǎn)接觸，只允許通過較小的電流（不超過幾十毫安），適用于高頻小電流電路，如收音機(jī)的

2、檢波等。面接觸型二極管的“PN結(jié)”面積較大，允許通過較大的電流（幾安到幾十安），主要用于把交流電變換成直流電的“整流”電路中。平面型二極管是一種特制的硅二極管，它不僅能通過較大的電流，而且性能穩(wěn)定可靠，多用于開關(guān)、脈沖及高頻電路中。肖特基二極管的檢測(cè)肖特基（Schottky）二極管也稱肖特基勢(shì)壘二極管（簡(jiǎn)稱SBD），它是一種低功耗、超高速半導(dǎo)體器件，廣泛應(yīng)用于開關(guān)電源、變頻器、驅(qū)動(dòng)器等電路，作高頻、低壓、大電流整流二極管、續(xù)流二極管、保

3、護(hù)二極管使用，或在微波通信等電路中作整流二極管、小信號(hào)檢波二極管使用。1性能比較下表列出了肖特基二極管和超快恢復(fù)二極管、快恢復(fù)二極管、硅高頻整流二極管、硅高速開關(guān)二極管的性能比較。由表可見，硅高速開關(guān)二極管的trr雖極低，但平均整流電流很小，不能作大電流整流用。2檢測(cè)方法1N系列穩(wěn)壓二極管參數(shù)型號(hào)穩(wěn)定電壓型號(hào)穩(wěn)定電壓型號(hào)穩(wěn)定電壓型號(hào)穩(wěn)定電壓1N46781.81N4729A3.61N5244141N59914.31N467921N4730

4、A3.91N5245151N59924.71N46802.21N4731A4.31N5246161N59935.11N46812.41N4732A4.71N5247171N59945.61N46822.71N4733A5.11N5248181N59956.21N468331N4734A5.61N5249191N59966.81N46843.31N4735A6.21N5250201N59977.51N46853.61N4736A6.81N

5、5251221N59988.21N46863.91N4737A7.51N5252241N59999.11N46874.31N4738A8.21N5253251N6000101N46884.71N4739A9.11N5254271N6001111N46895.11N4740A101N5255281N6002121N46905.61N4741A111N5256301N6003131N46916.21N4742A121N5257331N600

6、4151N46926.81N4743A131N57305.61N6005161N46937.51N4744A151N57316.21N6006181N46948.21N4745A161N57326.81N6007201N46958.71N4746A181N57337.51N6008221N46969.11N4747A201N57348.21N6009241N4697101N4748A221N57359.11N6010271N469811

7、1N4749A241N5736101N6011301N4699121N4750A271N5737111N6012331N4700131N4751A301N5738121N6013361N4701141N4752A331N5739131N6014391N4702151N4753A361N5740151N6015431N4703161N4754A391N5741161N6016471N4704171N4755A431N5742181N601

8、7511N4705181N4756A471N5743201N6018561N4706191N4757A511N5744221N6019621N4707201N4758A561N5745241N6020681N4708221N4759A621N5746271N6021751N4709241N4760A681N5747301N6022821N4710251N4761A751N5748331N6023911N4711271N52367.51N