BSR41; BSR43

NPN medium power transistors

NPN medium power transistor in a SOT89 plastic package. PNP complements: BSR30; BSR31 and BSR33.

Features and benefits

  • High current (max. 1 A)
  • Low voltage (max. 80 V).


  • Thick and thin-film circuits
  • Telephony and general industrial applications.


Type numberPackage versionPackage nameSize (mm)PolarityPtot (mW)VCEO [max] (V)IC [max] (mA)hFE [min]hFE [max]fT [min] (MHz)
BSR41SOT89SOT894.5 x 2.5 x 1.5NPN135060100030300100
BSR43SOT89SOT894.5 x 2.5 x 1.5NPN135080100030300100


Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))

Reel 13” or 11 ¼” Q1/T1 ActiveAR2BSR41F
( 9334 180 80135 )
Reel 7” Q1/T1 or Q2/T3ActiveAR2BSR41,115
( 9334 180 80115 )

Reel 7” Q1/T1 or Q2/T3ActiveAR4BSR43,115
( 9334 181 00115 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateMSLMSL leadfree
BSR41BSR41FBSR41Always Pb-free11
BSR41BSR41,115BSR41week 28, 200311
BSR43BSR43,115BSR43week 28, 200311
Quality and reliability disclaimer

Documentation (5)

File nameTitleTypeDate
BSR40_41_42_43NPN medium power transistorsData sheet2004-12-12
LSYMTRALetter Symbols - Transistors; GeneralDesign support1999-05-06
Nexperia_Selection_guide_2020Nexperia Selection Guide 2020Selection guide2020-01-31
SOT89plastic, surface-mounted package; 3 leads; 1.5 mm pitch; 4.5 mm x 2.5 mm x 1.5 mm bodyPackage information2020-04-21
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08


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