NPN BISS transistor

NPN BISS (Breakthrough In Small Signal) transistor in a SOT23 plastic package. PNP complement: PMMT591A.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
PMMT491A PMMT491A,235 934055113235 SOT23 Order product
PMMT491A PMMT491A,215 934055113215 SOT23 Order product


  • High current (max. 1 A)
  • Low collector-emitter saturation voltage ensures reduced power consumption.
  • AEC-Q101 qualified

Target applications

  • Battery powered units where high current and low power consumption are important.


Type numberPackage versionPackage nameSize (mm)transistor polarityPtot [max] (mW)VCEO [max] (V)IC [max] (A)ICM [max] (A)hFE [min]RCEsat [typ] (mΩ)VCEsat [max] (mV)
PMMT491ASOT23SOT232.9 x 1.3 x 1NPN2504012300230500


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
( 9340 551 13235 )

SOT23Reel 11" Q3/T4, LargePack
( 9340 551 13215 )
Active9A%Reel 7" Q3/T4

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
PMMT491ANPN BISS transistorData sheet2004-01-12
PMMT491A_Nexperia_Product_QualityPMMT491A Nexperia Product QualityQuality document2019-05-20
PMMT491A_Nexperia_Product_ReliabilityPMMT491A Nexperia Product ReliabilityQuality document2019-04-29
PMMT491APMMT491A SPICE modelSPICE model2019-10-16
SOT23_235Tape reel SMD; standard product orientation 12NC ending 235Packing2013-02-05
SOT23_215Tape reel SMD; standard product orientation 12NC ending 215Packing2012-11-16
SOT23plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm bodyOutline drawing2019-01-09


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
PMMT491APMMT491A SPICE modelSPICE model2019-10-16

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
PMMT491APMMT491A,235934055113235Reel 11" Q3/T4, LargePackOrder product
PMMT491APMMT491A,215934055113215Reel 7" Q3/T4Order product


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Sample orders normally take 2-4 days for delivery.

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