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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.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
BAS56 BAS56,235 933742310235 SOT143B Order product
BAS56 BAS56,215 933742310215 SOT143B Order product

Features and benefits

  • 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


  • 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 numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9337 423 10235 )

Reel 11" Q3/T4, LargePack
( 9337 423 10215 )
Active%L5Reel 7" Q3/T4

Quality, reliability & chemical content

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

Documentation (6)

File nameTitleTypeDate
BAS56High-speed double diodeData sheet2020-12-08
BAS56_Nexperia_Product_QualityBAS56 Nexperia Product QualityQuality document2019-05-20
BAS56_Nexperia_Product_ReliabilityBAS56 Nexperia Product ReliabilityQuality document2021-03-19
BAS56BAS56 SPICE modelSPICE model2012-07-22
BAS56BAS56 SPICE modelSPICE model2021-09-20
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
BAS56BAS56 SPICE modelSPICE model2012-07-22
BAS56BAS56 SPICE modelSPICE model2021-09-20

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
BAS56BAS56,235933742310235Reel 11" Q3/T4, LargePackOrder product
BAS56BAS56,215933742310215Reel 7" Q3/T4Order product


As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

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.