View pdta143et 4 datasheet:

DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D088 PDTA143ET PNP resistor-equipped transistor 1999 Apr 13 Product specification Supersedes data of 1998 May 18 Philips Semiconductors Product specification PNP resistor-equipped transistor PDTA143ET FEATURES • Built-in bias resistors R1 and R2 (typ. 4.7 k? each) 3 handbook, 4 columns • Simplification of circuit design 3 • Reduces number of components R1 and board space. 1 R2 APPLICATIONS 2 • Especially suitable for space 1 2 reduction in interface and driver Top view MAM100 circuits. • Inverter circuit configurations without use of external resistors. Fig.1 Simplified outline (SOT23) and symbol. DESCRIPTION MARKING PNP resistor-equipped transistor in a SOT23 plastic package. TYPE MARKING NPN comple