Philips Semiconductors Small-signal Transistors Selection guide LEADED DEVICES (continued) NPN POWER DARLINGTON TRANSISTORS TYPE NUMBER PACKAGE VCES max. (V) IC max. (mA) Ptot max. (mW) hFE min. hFE max. fT min. (MHz) toff max. (ns) PNP COMPL. PAGE BDX42 TO-126 45 1000 1250 2000 >2000 200 typ. - BDX45 516 BDX43 TO-126 60 1000 1250 2000 >2000 200 typ. - - 516 BDX44 TO-126 80 1000 1250 2000 >2000 200 typ. - BDX47 516 PNP POWER DARLINGTON TRANSISTORS TYPE NUMBER PACKAGE VCES max. (V) IC max. (mA) Ptot max. (mW) hFE min. hFE max. fT min. (MHz) toff max. (ns) NPN COMPL. PAGE BDX45 TO-126 45 1000 1250 2000 >2000 200 typ. - BDX42 520 BDX47 TO-126 80 1000 1250 2000 >2000 200 typ. - BDX44 520 LEADED DEVICES (continued) NPN MEDIUM-FREQUENCY TRANSISTORS TYPE NUMBER PACKAGE VCEO max. (V) IC max. (mA) Ptot max. (mW) hFE min. hFE max. fT min. (MHz) PAGE 38 >38 550 typ. 542 BF199 TO-92 25 25 500 BF240 TO-92 40 25 300 67 220 150 526 BF240B TO-92 40 25 300 100 220 150 526 BF370 TO-92 15 100 500 40 >40 490 530 BF370R TO-92 15 100 500 40 >40 490 530 BF494 TO-92 20 30 300 67 220 120 556 BF494B TO-92 20 30 300 100 220 120 556 BF495 TO-92 20 30 300 35 125 120 556 BF495B TO-92 20 30 300 11 125 120 556 BFR54 TO-92 15 100 500 40 >40 500 596 VCEO max. (V) IC max. (mA) Ptot max. (mW) hFE min. hFE max. fT min. (MHz) PAGE PNP MEDIUM-FREQUENCY TRANSISTORS TYPE NUMBER PACKAGE BF324 TO-92 30 25 300 25 >25 450 typ 528 BF450 TO-92 40 25 300 50 >50 350 542 1997 Jul 21 18