NPN Silicon AF Transistors
High current gain q High collector current q Low collector-emitter saturation voltage q Compl...
NPN Silicon AF
Transistors
High current gain q High collector current q Low collector-emitter saturation voltage q Complementary types: BC 636, BC 638, BC 640 (
PNP)
q
BC 635 … BC 639
2 3 1
Type BC 635 BC 637 BC 639
Marking –
Ordering Code Q68000-A3360 Q68000-A2285 Q68000-A3361
Pin Configuration 1 2 3 E C B
Package1) TO-92
If desired, selected
transistors, type BC 63 5 –10 (hFE = 63 … 160), or BC 63 5 –16 (hFE = 100 … 250) are available. Ordering codes upon request.
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1)
For detailed information see chapter Package Outlines.
Semiconductor Group
1
5.91
BC 635 … BC 639
Maximum Ratings Parameter Collector-emitter voltage Collector-base voltage Emitter-base voltage Collector current Peak collector current Base current Peak base current Junction temperature Storage temperature range Thermal Resistance Junction - ambient1) Junction - case2) Rth JA Rth JC
≤ ≤
Symbol VCE0 VCB0 VEB0 IC ICM IB IBM Tj Tstg
Values BC 635 45 45
Unit BC 637 60 60 5 1 1.5 100 200 0.8 (1) 150 – 65 … + 150 W ˚C mA A BC 639 80 100 V
Total power dissipation, TC = 90 ˚C1) Ptot
156 75
K/W
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1)
2)
If the
transistors with max. 4 mm lead length are fixed on PCBs with a min. 10 mm × 10 mm large copper area for the collector terminal, Rth JA = 125 K/W and thus Ptot max = 1 W at TA = 25 ˚C. Mounted on Al heat sink 15 mm × 25 mm × 0.5 mm.
Semiconductor Group
2
BC 635 … BC 639
Electrical Characteristics at TA = 25 ˚C, unless otherwise specified. Parameter S...