Important notice Dear Customer, On 7 February 2017 the former NXP Standard Product business became a new company with the tradename Nexperia. Nexperia is an industry leading supplier of Discrete, Logic and PowerMOS semiconductors with its focus on the automotive, industrial, computing, consumer and wearable application markets In data sheets and application notes which still contain NXP or Philips Semiconductors references, use the references to Nexperia, as shown below. Instead of PBSS4440D 40 V NPN low V (BISS) transistor CEsat Rev. 02 11 December 2009 Product data sheet 1. Product profile 1.1 General description NPN low V Breakthrough In Small Signal (BISS) transistor in a SOT457 (SC-74) CEsat SMD plastic package. PNP complement: PBSS5440D. 1.2 Features Ultra low collector-emitter saturation voltage V CEsat 4 A continuous collector current capability I (DC) C Up to 15 A peak current Very low collector-emitter saturation resistance High efficiency due to less heat generation 1.3 Applications Power management functions Charging circuits DC-to-DC conversion MOSFET gate driving Power switches (e.g. motors, fans) Thin Film Transistor (TFT) backlight inverter 1.4 Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit V collector-emitter voltage open base - - 40 V CEO 1 I collector current (DC) --4 A C I peak collector current t = 1 ms or limited by --15 A CM T j(max) 2 R collector-emitter saturation I = 6 A I = 600 mA - 5575m CEsat C B resistance 1 Device mounted on a ceramic Printed-Circuit Board (PCB), AL O , standard footprint. 2 3 2 Pulse test: t 300 s 0.02. p