N-channel 100 V 36.6 mΩ standard level MOSFET in LFPAK33 designed specifically for high power PoE applications

New standards and proprietary approaches are enabling Power-over-Ethernet (PoE) systems capable of delivering up to 90W to each powered device (PD). Such solutions place increased demands on the power sourcing equipment (PSE) in terms of “soft-start”, thermal management and power density requirements.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
PSMN040-100MSE PSMN040-100MSEX 934067473115 SOT1210 Order product


  • Enhanced forward biased safe operating area for superior linear mode operation
  • Low Rdson for low conduction losses
  • Ultra reliable LFPAK33 package for superior thermal and ruggedness performance
  • Very low IDSS

Target applications

  • High power PoE applications (60W and higher)
  • IEEE802.3at and proprietary solutions


Type numberPackage versionPackage nameProduct statusChannel typeNumber of transistorsVDS [max] (V)RDSon [max] @ VGS = 10 V (mΩ)Tj [max] (°C)ID [max] (A)QGD [typ] (nC)QG(tot) [typ] @ VGS = 10 V (nC)Ptot [max] (W)Qr [typ] (nC)VGSth [typ] (V)Automotive qualifiedCiss [typ] (pF)Coss [typ] (pF)Date


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SOT1210Reel 7" Q1/T1ActiveM40E10PSMN040-100MSEX
( 9340 674 73115 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateIFRMTBF (hour)MSLMSL leadfree
Quality and reliability disclaimer

Documentation (16)

File nameTitleTypeDate
PSMN040-100MSEN-channel 100 V, 36.6 mΩ standard level MOSFET in LFPAK33 designed specifically for high power PoE applicationsData sheet2018-03-30
AN10273Power MOSFET single-shot and repetitive avalanche ruggedness ratingApplication note2015-12-10
AN10874LFPAK MOSFET thermal design guideApplication note2018-04-24
AN10874_ZHLFPAK MOSFET thermal design guide, Chinese versionApplication note2012-09-14
AN11113LFPAK MOSFET thermal design guide - Part 2Application note2018-04-24
AN11156Using Power MOSFET Zth CurvesApplication note2012-10-10
AN11243Failure signature of Electrical Overstress on Power MOSFETsApplication note2017-12-21
AN11261Using RC Thermal ModelsApplication note2014-05-19
AN11113_ZHLFPAK MOSFET thermal design guide - Part 2Application note2014-05-22
AN11599Using power MOSFETs in parallelApplication note2016-07-13
AN90003Thermal design guide for LFPAK56D and LFPAK33Application note2019-02-04
PSMN040-100MSEPSMN040-100MSE Spice modelSPICE model2013-04-08
TN00008Power MOSFET frequently asked questions and answersTechnical note2018-09-12
PSMN040-100MSEPSMN040-100MSE Thermal modelThermal model2013-04-08
SOT1210_115LFPAK33; Reel pack, SMD, 7' Q1/T1 Standard product orientation Orderable part number ending, 115 or X Ordering code (12NC) ending 115Packing2014-03-31
SOT1210Plastic, single ended surface mounted package (LFPAK33); 8 leads; 0.65 mm pitchOutline drawing2018-05-04


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
PSMN040-100MSEPSMN040-100MSE Spice modelSPICE model2013-04-08
PSMN040-100MSEPSMN040-100MSE Thermal modelThermal model2013-04-08

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
PSMN040-100MSEPSMN040-100MSEX934067473115Reel 7" Q1/T1Order product


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