High-speed double diode

The BAS56 consists of two high-speed switching diodes fabricated in planar technology, and encapsulated in the small rectangular plastic SMD SOT143 package. The diodes are not connected.


  • Small plastic SMD package
  • High switching speed: max. 6 ns
  • Continuous reverse voltage: max. 60 V
  • Repetitive peak reverse voltage: max. 60 V
  • Repetitive peak forward current: max. 600 mA.
  • AEC-Q101 qualified

Target applications

  • High speed switching in e.g. surface mounted circuits.


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)
BAS56SOT143BSOT143B2.9 x 1.3 x 16091000@IF=200mA100@VR=60V600dual isolated62002.5


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

SOT143BReel 11" Q3/T4, LargePackActive%L5BAS56,235
( 9337 423 10235 )
Reel 7" Q3/T4Active%L5BAS56,215
( 9337 423 10215 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
BAS56BAS56,235BAS56week 49, 2002409.01.95.26E811
BAS56BAS56,215BAS56week 49, 2002409.01.95.26E811
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
BAS56High-speed double diodeData sheet2010-08-23
BAS56_Nexperia_Product_QualityBAS56 Nexperia Product QualityQuality document2017-05-16
BAS56_Nexperia_Product_ReliabilityBAS56 Nexperia Product ReliabilityQuality document2017-05-23
BAS56BAS56 SPICE modelSPICE model2012-07-22
SOT143B_235Tape reel SMD; standard product orientation 12NC ending 235Packing2012-11-07
SOT143B_215Tape reel SMD; standard product orientation 12NC ending 215Packing2012-11-07
SOT143Bplastic, surface-mounted package; 4 leads; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 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
BAS56BAS56 SPICE modelSPICE model2012-07-22

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy from distributors
BAS56BAS56,235933742310235Reel 11" Q3/T4, LargePackBuy online
BAS56BAS56,215933742310215Reel 7" Q3/T4Buy online


As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store:

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.