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Quadruple ESD transient voltage suppressor

Monolithic transient voltage suppressor diode in a six lead SOT457 (SC-74) package for 4-bit wide ESD transient suppression at 20 V level.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
BZA420A BZA420A,115 934045750115 SOT457 Order product
BZA420A BZA420A,165 934045750165 SOT457 Order product
BZA420A BZA420A,135 934045750135 SOT457 Order product
BZA420A BZA420A,125 934045750125 SOT457 Order product

Features and benefits

  • ESD rating >8 kV, according to IEC1000-4-2
  • SOT457 surface mount package
  • Common anode configuration
  • Non-clamping range −0.5 to 20 V
  • Maximum reverse peak power dissipation: 19.6 W at tp = 1 ms
  • Maximum clamping voltage at peak pulse current: 28 V at Izsm = 0.7 A


  • Computers and peripherals
  • Audio and video equipment
  • Communication systems
  • Medical equipment


Type numberPackage versionPackage nameSize (mm)Configuration# of linesVRWM (V)Cd [typ] (pF)IPPM [max] (A)VESD (kV)
BZA420ASOT457SC-74; TSOP62.9 x 1.5 x 1Unidirectional415--8

(-) dash denotes: "Parameter value not specified for this product"


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9340 457 50115 )
SC-74; TSOP6
Reel 7” Q1/T1 or Q2/T3
( 9340 457 50165 )
ActiveZ0Reel 11" Q3/Q4 SMD
( 9340 457 50135 )
ActiveZ0Reel 13” or 11 ¼” Q1/T1
( 9340 457 50125 )
ActiveZ0Reel 7" Q3/T4, Reverse

Quality, reliability & chemical content

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

Documentation (6)

File nameTitleTypeDate
BZA420AQuadruple ESD transient voltage suppressorData sheet1999-05-19
BZA420A_Nexperia_Product_ReliabilityBZA420A Nexperia Product ReliabilityQuality document2021-03-19
BZA420A_Nexperia_Product_QualityBZA420A Nexperia Product QualityQuality document2019-05-20
BZA420ABZA420A SPICE modelSPICE model2012-07-22
BZA420ABZA420A 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
BZA420ABZA420A SPICE modelSPICE model2012-07-22
BZA420ABZA420A SPICE modelSPICE model2021-09-20

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
BZA420ABZA420A,115934045750115Reel 7” Q1/T1 or Q2/T3Order product
BZA420ABZA420A,165934045750165Reel 11" Q3/Q4 SMDOrder product
BZA420ABZA420A,135934045750135Reel 13” or 11 ¼” Q1/T1 Order product
BZA420ABZA420A,125934045750125Reel 7" Q3/T4, ReverseOrder 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.