Vishay Telefunken BFP81 Datasheet
Silicon NPN Planar RF Transistor
Electrostatic sensitive device.
Observe precautions for handling.
Applications
RF amplifier up to 2 GHz, especially for mobile telephone.
Features
D
Small feedback capacitance
D
Low noise figure
D
High transition frequency
21
BFP81
Vishay Telefunken
94 9279
13 579–2
43
BFP81 Marking: FA
Plastic case (SOT 143)
1 = Collector, 2 = Emitter, 3 = Base, 4 = Emitter
Absolute Maximum Ratings
T
= 25_C, unless otherwise specified
amb
Parameter Test Conditions Symbol Value Unit
Collector-base voltage V
Collector-emitter voltage V
Emitter-base voltage V
Collector current I
Total power dissipation T
Junction temperature T
Storage temperature range T
≤ 60 °C P
amb
CBO
CEO
EBO
C
tot
j
stg
25 V
16 V
2 V
30 mA
200 mW
150
–65 to +150
Maximum Thermal Resistance
T
= 25_C, unless otherwise specified
amb
Parameter T est Conditions Symbol Value Unit
Junction ambient on glass fibre printed board (25 x 20 x 1.5) mm
plated with 35mm Cu
3
R
thJA
450 K/W
°
C
°
C
Document Number 85018
Rev. 3, 20-Jan-99
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BFP81
qy
Vishay Telefunken
Electrical DC Characteristics
T
= 25_C, unless otherwise specified
amb
Parameter Test Conditions Symbol Min Typ Max Unit
Collector cut-off current VCE = 25 V, VBE = 0 I
Collector-base cut-off current VCB = 20 V, IE = 0 I
Emitter-base cut-off current VEB = 2 V, IC = 0 I
Collector-emitter breakdown voltage IC = 1 mA, IB = 0 V
Collector-emitter saturation voltage IC = 30 mA, IB = 3 mA V
DC forward current transfer ratio VCE = 10 V, IC = 5 mA h
VCE = 10 V, IC = 15 mA h
Electrical AC Characteristics
T
= 25_C, unless otherwise specified
amb
Parameter Test Conditions Symbol Min Typ Max Unit
Transition frequency VCE = 10 V, IC = 5 mA, f = 500 MHz f
VCE = 10 V, IC = 15 mA, f = 500 MHz f
Collector-base capacitance VCB = 10 V, f = 1 MHz C
Collector-emitter capacitance VCE = 10 V, f = 1MHz C
Emitter-base capacitance VEB = 0.5 V, f = 1 MHz C
Noise figure VCE = 10 V, ZS = 50 W, f = 800 MHz,
I
= 5 mA
C
VCE = 10 V, ZS = Z
, f = 2 GHz,
Sopt
IC = 10 mA
Power gain VCE = 10 V, ZS = 50 W, ZL = Z
Lopt
,
f = 800 MHz, IC = 5 mA
Linear output voltage – two
tone intermodulation test
VCE = 10 V, ZS = 50 W, ZL = Z
f = 800 MHz, I
= 10 mA
C
VCE = 10 V, IC = 25 mA, dIM = 60 dB,
f1 = 806 MHz, f2 = 810 MHz,
Z
= ZL = 50
S
W
Lopt
,
Third order intercept point VCE = 10 V, IC = 25 mA, f = 800 MHz IP
F 1.4 dB
F 2.5 dB
G
G
V1 = V
CES
CBO
EBO
(BR)CEO
CEsat
FE
FE
T
T
cb
ce
eb
pe
pe
2
3
100mA
100 nA
10
m
16 V
0.2 0.4 V
70 100 150
70 100
4.2 GHz
5.8 GHz
0.3 pF
0.2 pF
1.2 pF
15.5 dB
16.5 dB
160 mV
27 dBm
A
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Document Number 85018
Rev. 3, 20-Jan-99
Common Emitter S–Parameters
3
BFP81
Vishay Telefunken
Z0 = 50 W,T
VCE/V IC/mA f/MHz
1 2 1500 0.495 170.3 1.70 57.4 0.148 32.9 0.422 –52.1
= 25_C, unless otherwise specified
amb
S11 S21 S12 S22
LIN
MAG
100 0.882 –26.99 6.43 158.5 0.040 73.0 0.944 –13.1
300 0.702 –72.30 5.00 127.5 0.093 50.4 0.763 –29.1
500 0.579 –104.7 3.81 107.8 0.115 39.3 0.621 –35.6
800 0.496 –139.4 2.74 88.1 0.130 32.5 0.515 –40.2
1000 0.474 –156.9 2.31 78.5 0.135 31.3 0.479 –43.0
1200 0.480 –171.4 2.02 69.6 0.140 31.1 0.451 –46.1
1800 0.518 155.6 1.49 47.3 0.158 35.7 0.399 –59.3
2000 0,.541 147.6 1.38 40.8 0.169 37.8 0.388 –64.9
2200 0.567 138.6 1.29 34.7 0.182 39.6 0.378 –70.8
2500 0.599 128.1 1.17 26.1 0.207 38.5 0.363 –80.8
2800 0.633 118.4 1.08 18.2 0.230 39.8 0.359 –93.6
3000 0.649 113.2 1.03 13.9 0.249 39.0 0.350 –102.5
100 0.894 –23.2 6.52 160.8 0.027 75.5 0.960 –9.3
300 0.729 –62.8 5.27 132.3 0.066 55.0 0.832 –21.1
500 0.590 –93.5 4.16 112.8 0.084 44.3 0.719 –26.1
800 0.482 –128.6 3.04 93.4 0.097 37.9 0.631 –30.1
1000 0.445 –146.8 2.58 83.6 0.101 37.2 0.601 –32.7
1200 0.438 –163.0 2.24 74.9 0.106 37.9 0.580 –35.3
2 1500 0.448 176.6 1.90 63.0 0.113 40.7 0.555 –40.1
1800 0.467 160.8 1.64 53.3 0.123 44.7 0.537 –45.7
2000 0.489 150.7 1.52 46.9 0.133 47.3 0.529 –50.1
2200 0.514 141.4 1.43 41.0 0.146 50.0 0.522 –54.5
2500 0.541 130.2 1.30 32.0 0.168 48.6 0.509 –62.1
2800 0.577 120.0 1.19 24.5 0.190 51.1 0.508 –71.7
3000 0.599 114.6 1.13 20.1 0.208 50.6 0.492 –78.2
100 0.758 –35.5 13.77 152.1 0.025 70.5 0.903 –16.0
300 0.514 –87.7 9.17 118.5 0.051 53.8 0.660 –28.3
500 0.396 –120.7 6.36 101.2 0.064 51.0 0.540 –29.0
800 0.336 –154.3 4.30 85.4 0.082 52.5 0.477 –29.0
1000 0.322 –171.3 3.54 77.4 0.094 53.9 0.460 –30.2
1200 0.328 175.2 3.03 70.2 0.108 54.4 0.450 –32.4
5 1500 0.347 160.0 2.51 60.3 0.129 54.7 0.432 –37.0
1800 0.376 146.7 2.15 51.8 0.150 54.1 0.415 –42.5
2000 0.394 139.8 1.98 46.0 0.166 53.3 0.407 –46.8
2200 0.415 132.2 1.85 40.8 0.182 52.3 0.399 –51.1
2500 0.450 124.1 1.68 32.6 0.206 48.4 0.381 –58.9
2800 0.484 115.7 1.54 25.4 0.227 47.3 0.371 –68.4
3000 0.504 111.2 1.46 20.9 0.244 45.5 0.354 –74.9
ANG
deg deg deg deg
LIN
MAG
ANG
LIN
MAG
ANG
LIN
MAG
ANG
Document Number 85018
Rev. 3, 20-Jan-99
www.vishay.de • FaxBack +1-408-970-5600
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