BFR91A
Vishay Telefunken
Silicon NPN Planar RF Transistor
Electrostatic sensitive device. Observe precautions for handl...
BFR91A
Vishay Telefunken
Silicon
NPN Planar RF
Transistor
Electrostatic sensitive device. Observe precautions for handling.
Applications
RF amplifier up to GHz range specially for wide band antenna amplifier.
Features
D High power gain D Low noise figure D High transition frequency
3
2
94 9308
13623
1
BFR91A Marking: BFR91A Plastic case (TO 50) 1 = Collector, 2 = Emitter, 3 = Base
Absolute Maximum Ratings
Tamb = 25_C, unless otherwise specified Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Total power dissipation Junction temperature Storage temperature range Test Conditions Symbol VCBO VCEO VEBO IC Ptot Tj Tstg Value 20 12 2 50 300 150 –65 to +150 Unit V V V mA mW °C °C
Tamb ≤ 60 °C
Maximum Thermal Resistance
Tamb = 25_C, unless otherwise specified Parameter Test Conditions Junction ambient on glass fibre printed board (40 x 25 x 1.5) mm3 plated with 35mm Cu Symbol RthJA Value 300 Unit K/W
Document Number 85031 Rev. 3, 20-Jan-99
www.vishay.de FaxBack +1-408-970-5600 1 (8)
BFR91A
Vishay Telefunken Electrical DC Characteristics
Tamb = 25_C, unless otherwise specified Parameter Collector cut-off current Collector-base cut-off current Emitter-base cut-off current Collector-emitter breakdown voltage Collector-emitter saturation voltage DC forward current transfer ratio Test Conditions VCE = 20 V, VBE = 0 VCB = 20 V, IE = 0 VEB = 2 V, IC = 0 IC = 1 mA, IB = 0 IC = 50 mA, IB = 5 mA VCE = 5 V, IC = 30 mA Symbol Min ...