40 V, 200 mA NPN switching transistor

NPN switching transistor in a small SOT23 (SC-70) Surface-Mounted Device (SMD) plastic package.

PNP complement: MMBT3906

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
MMBT3904 MMBT3904VL 933864360235 SOT23 Order product
MMBT3904 MMBT3904,215 933864360215 SOT23 Order product

Features and benefits

  • Collector current capability IC = 200 mA

  • Collector-emitter voltage VCEO = 40 V


  • General switching and amplification


Type numberPackage versionPackage nameSize (mm)PolarityPtot (mW)VCEO [max] (V)IC [max] (mA)hFE [min]hFE [max]fT [min] (MHz)Automotive qualified
MMBT3904SOT23SOT232.9 x 1.3 x 1NPN2504020060300300N

PCB Symbol, Footprint and 3D Model

Model NameDescription


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9338 643 60235 )

( 9338 643 60215 )

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator
Quality and reliability disclaimer

Documentation (9)

File nameTitleTypeDate
MMBT3904NPN switching transistorData sheet2004-02-02
LSYMTRALetter Symbols - Transistors; GeneralDesign support1999-05-06
MMBT3904_Nexperia_Product_QualityMMBT3904 Nexperia Product QualityQuality document2019-05-20
MMBT3904_Nexperia_Product_ReliabilityMMBT3904 Nexperia Product ReliabilityQuality document2023-04-04
MMBT3904MMBT3904 SPICE modelSPICE model2023-09-05
SOT23_235Reel pack for SMD, 11"; Q3/T4 product orientationPacking information2020-06-01
SOT23_215Reel pack for SMD, 7"; Q3/T4 product orientationPacking information2020-04-29
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
LSYMTRALetter Symbols - Transistors; GeneralDesign support1999-05-06
MMBT3904MMBT3904 SPICE modelSPICE model2023-09-05

PCB Symbol, Footprint and 3D Model

Model NameDescription

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
MMBT3904MMBT3904VL933864360235SOT23_235- Order product
MMBT3904MMBT3904,215933864360215SOT23_215- 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.