General purpose diodes

The BAV20 and BAV21 are switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass SOD27 (DO-35) packages.


  • Hermetically sealed leaded glass SOD27 (DO-35) package
  • Switching speed: max. 50 ns
  • General application
  • Continuous reverse voltage: max. 150 V, 200 V
  • Repetitive peak reverse voltage: max. 200 V, 250 V
  • Repetitive peak forward current: max. 625 mA.

Target applications

  • General purposes in industrial equipment e.g. oscilloscopes, digital voltmeters and video output stages in colour television.


Type numberPackage versionPackage nameSize (mm)VR [max] (V)IFSM [max] (A)VF [max] (mV)IR [max] (nA)IFRM (mA)Configurationtrr [max] (ns)IF [max] (mA)Cd [max] (pF)
BAV21SOD27ALF24.25 x 1.8520091000@IF=100mA100@VR=200V625single502505


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SOD27Reel, Axial, 52mmActiveStandard MarkingBAV21,113
( 9331 892 10113 )
Ammopack, Axial, 26mmActiveStandard MarkingBAV21,143
( 9331 892 10143 )
Ammopack, Axial, 52mmActiveStandard MarkingBAV21,133
( 9331 892 10133 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
Quality and reliability disclaimer

Documentation (13)

File nameTitleTypeDate
BAV20General purpose diodesData sheet2009-12-09
AN9500822 MHz Video Amplifier for Large Jumbo Picture TubesApplication note1996-03-15
AN9901190W Resonant SMPS with TEA1610 SwingChip (tm)Application note2000-09-13
AN00057ECO-monitorApplication note2000-11-07
AN94004Panoramic view circuitApplication note2016-06-01
LSYMDIO-Design support1999-04-30
BAV21_Nexperia_Product_QualityBAV21 Nexperia Product QualityQuality document2017-05-16
BAV21_Nexperia_Product_ReliabilityBAV21 Nexperia Product ReliabilityQuality document2017-05-23
BAV21BAV21 SPICE modelSPICE model2012-07-22
SOD27_133Ammo pack axial taped; standard product orientation 12NC ending 133Packing2012-11-07
SOD27_143Ammo pack axial taped; standard product orientation 12NC ending 143Packing2012-11-07
SOD27_113Reel pack axial; standard product orientation 12NC ending 113Packing2012-11-07
SOD27glass, hermetically sealed glass package; axial leaded; 2 leads; 4.25 mm x 1.85 mm bodyOutline drawing2017-01-30


If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.


File nameTitleTypeDate
LSYMDIO-Design support1999-04-30
BAV21BAV21 SPICE modelSPICE model2012-07-22


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