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NPN Silicon RF Transistors
BF 840 BF 841
q q q
Suitable for common emitter RF, IF amplifiers Low collector-base capacitance due to contact shield diffusion Low output conductance
Type BF 840 BF 841
Marking NC ND
Ordering Code Q62702-F1240 Q62702-F1287
Pin Configuration 1 2 3 B E C
Package1) SOT-23
Maximum Ratings Parameter Collector-emitter voltage Collector-base voltage Emitter-base voltage Collector current Base current Total power dissipation, TA ≤ 25 ˚C2) Junction temperature Storage temperature range Thermal Resistance Junction - ambient2) Rth JA
≤
Symbol VCE0 VCB0 VEB0 IC IB Ptot Tj Tstg
Values 40 40 4 25 2 280 150 – 65 … + 150
Unit V
mA mW ˚C
450
K/W
1) 2)
For detailed information see chapter Package Outlines. Package mounted on alumina 15 mm × 16.7 mm × 0.7 mm.
BF840 Datasheet
