High-voltage switching diode

High-voltage switching diode encapsulated in a small SOT23 Surface-Mounted Device (SMD) plastic package.


  • High switching speed: trr ≤ 50 ns
  • Low leakage current
  • Reverse voltage VR ≤ 200 V
  • Low capacitance: Cd ≤ 5 pF
  • Small SMD plastic package
  • AEC-Q101 qualified

Target applications

  • High-speed switching at high voltage
  • High-voltage general-purpose switching
  • Voltage clamping
  • Reverse polarity protection


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)
BAS21SOT23SOT232.9 x 1.3 x 120091000@IF=100mA100@VR=200V625single502005


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))

SOT23Multi-reel 11" T4/Q3 SMD Pitch 4mmSamples available / DevelopmentJS%BAS21Z
( 9335 020 40300 )
Reel 7" Q3/T4ActiveJS%BAS21,215
( 9335 020 40215 )
Reel 11" Q3/T4, LargePackActiveJS%BAS21,235
( 9335 020 40235 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
BAS21BAS21,215BAS21week 34, 2003409.01.95.26E811
BAS21BAS21,235BAS21week 34, 2003409.01.95.26E811
Quality and reliability disclaimer

Documentation (8)

File nameTitleTypeDate
BAS19_20_21General purpose diodesData sheet2003-03-19
BAS21_Nexperia_Product_QualityBAS21 Nexperia Product QualityQuality document2017-05-16
BAS21_Nexperia_Product_ReliabilityBAS21 Nexperia Product ReliabilityQuality document2017-05-23
BAS21BAS21 SPICE modelSPICE model2012-07-22
SOT23_235Tape reel SMD; standard product orientation 12NC ending 235Packing2013-02-05
SOT23_185Tape reel SMD; standard product orientation 12NC ending 185Packing2012-11-16
SOT23_215Tape reel SMD; standard product orientation 12NC ending 215Packing2012-11-16
SOT23plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm bodyOutline drawing2019-01-09


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
BAS21BAS21 SPICE modelSPICE model2012-07-22

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy from distributors
BAS21BAS21Z933502040300Multi-reel 11" T4/Q3 SMD Pitch 4mmBuy online
BAS21BAS21,215933502040215Reel 7" Q3/T4Buy online
BAS21BAS21,235933502040235Reel 11" Q3/T4, LargePackBuy online
BAS21BAS21,185933502040185Reel 7" Q3/T4 Pitch 4mm in Multi reel packBuy online
BAS21/BBAS21/B,235934059504235Reel 11" Q3/T4, LargePackBuy online
BAS21/BBAS21/B,215934059504215Reel 7" Q3/T4Buy online


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