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Single high-speed switching diode

Single high-speed switching diode, encapsulated in a SOD323F (SC-90) very small and flat lead Surface-Mounted Device (SMD) plastic package.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
BAS21J BAS21J,115 934060933115 SOD323F Order product
BAS21J BAS21JF 934060933135 SOD323F Order product

Features and benefits

  • High switching speed: trr ≤ 50 ns
  • Low capacitance: Cd ≤2 pF
  • Low leakage current
  • Reverse voltage: VR ≤ 300 V
  • Repetitive peak reverse voltage: VRRM ≤ 300 V
  • Very small and flat lead SMD plastic package
  • Excellent coplanarity and improved thermal behavior
  • AEC-Q101 qualified


  • High-speed switching
  • Voltage clamping
  • General-purpose switching
  • 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)
BAS21JSOD323FSC-901.7 x 1.25 x 0.730031100@IF=100mA150@VR=250V1000single502502


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9340 609 33301 )
Samples available / DevelopmentAN
Multi-reel 11" T1/Q1 SMD Pitch 4mm
( 9340 609 33115 )
ActiveANReel 7” Q1/T1 or Q2/T3
( 9340 609 33135 )
ActiveANReel 13” or 11 ¼” Q1/T1

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
BAS21JSingle high-speed switching diodeData sheet2020-12-12
LSYMDIOLetter Symbols - Diodes GeneralDesign support1999-04-30
BAS21J_Nexperia_Product_ReliabilityBAS21J Nexperia Product ReliabilityQuality document2021-03-19
BAS21JBAS21J SPICE modelSPICE model2012-07-22
BAS21JBAS21J SPICE modelSPICE model2021-12-20
REFLOW_BG-BD-1Reflow soldering profileReflow soldering2021-04-06
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08


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
LSYMDIOLetter Symbols - Diodes GeneralDesign support1999-04-30
BAS21JBAS21J SPICE modelSPICE model2012-07-22
BAS21JBAS21J SPICE modelSPICE model2021-12-20

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
BAS21JBAS21J,115934060933115Reel 7” Q1/T1 or Q2/T3- Order product
BAS21JBAS21JF934060933135Reel 13” or 11 ¼” Q1/T1 - Order product


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Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.