Quadruple bidirectional ESD transient voltage suppressor

4-bit wide monolithic bidirectional ESD transient voltage suppressor in a six lead SOT457 (SC-74) package.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
BZA408B BZA408B,125 934055171125 SOT457 Order product
BZA408B BZA408B,115 934055171115 SOT457 Order product

Features and benefits

  • ESD rating > 15 kV, according to IEC1000-4-2

  • SOT457 surface mount package

  • Non-clamping range: -5 V to +5 V

  • Channel separation: > 70 dB

  • Low reverse current: < 100 nA

  • Low diode capacitance: < 75 pF


Protection of equipment, connected to data and transmission lines, against voltage surges caused by electrostatic discharge e.g:

  • Computers and peripherals

  • Audio and video equipment

  • Communication systems

  • Medical equipment

  • Portable electronics


Type numberPackage versionPackage nameSize (mm)ConfigurationNr of linesVRWM (V)Cd [typ] (pF)IPPM [max] (A)VESD (kV)
BZA408BSOT457TSOP62.9 x 1.5 x 1Bidirectional45--15

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

PCB Symbol, Footprint and 3D Model

Model NameDescription


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9340 551 71125 )
( 9340 551 71115 )

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator
Quality and reliability disclaimer

Documentation (8)

File nameTitleTypeDate
BZA408BQuadruple bidirectional ESD transient voltage suppressorData sheet1998-10-14
BZA408B_Nexperia_Product_QualityBZA408B Nexperia Product QualityQuality document2019-05-20
BZA408B_Nexperia_Product_ReliabilityBZA408B Nexperia Product ReliabilityQuality document2023-04-04
BZA408BBZA408B SPICE modelSPICE model2023-08-10
SOT457_125TSOP6; Reel pack for SMD, 7"; Q3/T4 product orientationPacking information2020-02-26
SOT457_115TSOP6; Reel pack for SMD, 7"; Q2/T3 product orientationPacking information2020-06-12
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
BZA408BBZA408B SPICE modelSPICE model2023-08-10

PCB Symbol, Footprint and 3D Model

Model NameDescription

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
BZA408BBZA408B,125934055171125SOT457_125- Order product
BZA408BBZA408B,115934055171115SOT457_115- Order 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.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.