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BAS21 ECAD models PCB Symbol, Footprint & ECAD Model

High-voltage switching diode

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

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
BAS21 BAS21Z 933502040300 SOT23 Order product
BAS21 BAS21,215 933502040215 SOT23 Order product
BAS21 BAS21,235 933502040235 SOT23 Order product
BAS21 BAS21,185 933502040185 SOT23 Order product
BAS21/B BAS21/B,235 934059504235 SOT23 Order product
BAS21/B BAS21/B,215 934059504215 SOT23 Order product


  • High switching speed: trr≤50ns
  • Low leakage current
  • Reverse voltage VR≤200V
  • Low capacitance: Cd≤5pF
  • 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 numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
( 9335 020 40300 )
Samples available / DevelopmentJS%

SOT23Multi-reel 11" T4/Q3 SMD Pitch 4mm
( 9335 020 40215 )
ActiveJS%Reel 7" Q3/T4
( 9335 020 40235 )
ActiveJS%Reel 11" Q3/T4, LargePack

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
Quality and reliability disclaimer

Documentation (8)

File nameTitleTypeDate
BAS21High-voltage switching diodeData sheet2019-03-22
BAS21_Nexperia_Product_QualityBAS21 Nexperia Product QualityQuality document2019-05-20
BAS21_Nexperia_Product_ReliabilityBAS21 Nexperia Product ReliabilityQuality document2019-04-29
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 online
BAS21BAS21Z933502040300Multi-reel 11" T4/Q3 SMD Pitch 4mmOrder product
BAS21BAS21,215933502040215Reel 7" Q3/T4Order product
BAS21BAS21,235933502040235Reel 11" Q3/T4, LargePackOrder product
BAS21BAS21,185933502040185Reel 7" Q3/T4 Pitch 4mm in Multi reel packOrder product
BAS21/BBAS21/B,235934059504235Reel 11" Q3/T4, LargePackOrder product
BAS21/BBAS21/B,215934059504215Reel 7" Q3/T4Order product


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Sample orders normally take 2-4 days for delivery.

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