PRELIMINARY BFR90.PDF 3-10-99
BFR90
DESCRIPTION: Designed primarily for use in high-gain, low noise, small-signal amplifiers. Also used in
applications requiring fast switching times.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)
Symbol Parameter Value Unit
VCEO Collector-Emitter Voltage 15 Vdc
VCBO Collector-Base Voltage 20 Vdc
VEBO Emitter-Base Voltage 3.0 Vdc
ICCollector Current 30 mA
Thermal Data
PDTotal Device Dissipation @ TA = 60ºC
Derate above 60ºC 180
2.0 mWatts
mW/ ºC
Macro T
(STYLE #2)
Features
• High Current-Gain – Bandwidth Product, fT = 5.0 GHz (typ) @ IC = 14 mA
• Low Noise Figure – NF = 2.4 dB (typ) @ f = 0.5 GHz
• High Power Gain – Gmax = 18dB (typ) @ f = 0.5 GHz
RF & MICROWAVE DISCRETE
LOW POWER TRANSISTORS
140 COMMERCE DRIVE
MONTGOMERYVILLE, PA
18936-1013
PHONE: (215) 631-9840
FAX: (215) 631-9855
PRELIMINARY BFR90.PDF 3-10-99
BFR90
ELECTRICAL SPECIFICATIONS (Tcase = 25°C)
STATIC
(off)
Symbol Test Conditions Value
Min. Typ. Max. Unit
BVCEO Collector-Emitter Breakdown Voltage
(IC = 1.0 mAdc, IB = 0) 15 - - Vdc
BVCB0 Collector-Base Breakdown Voltage
(IC = 0.1 mAdc, IE = 0) 20 - - Vdc
BVEBO Emitter-Base Breakdown Voltage
(IE = 0.1 mAdc, IC = 0) 3.0 - - Vdc
ICBO Collector Cutoff Current
(VCB = 10 Vdc, VBE = 0 Vdc) - - 50 nA
(on)HFE DC Current Gain
(IC = 14 mAdc, VCE = 10 Vdc) 25 -250 -
DYNAMIC
Symbol Test Conditions Value
Min. Typ. Max. Unit
Ftau Current-Gain – Bandwidth Product
(IC = 14 mA, VCE = 10 Vdc, f = 0.5 GHz) -5.0 -GHz
CCB Output Capacitance
(VCB = 10 Vdc, IE = 0, f = 1.0 MHz) -0.5 1.0 pF
PRELIMINARY BFR90.PDF 3-10-99
BFR90
FUNCTIONAL
Symbol Test Conditions Value
Min. Typ. Max. Unit
NF Noise Figure
(IC = 2.0 mAdc, VCE = 10 Vdc, f = 0.5 GHz)
(IC = 2.0 mAdc, VCE = 10 Vdc, f = 1.0 GHz) -
-2.4
3.0 -
-dB
GNF Power Gain at Optimum Noise Figure
(IC = 2.0 mAdc, VCE = 10 Vdc, f = 0.5 GHz)
(IC = 2.0 mAdc, VCE = 10 Vdc, f = 1.0 GHz) -
-15
10 -
-dB
|S21|2Insertion Gain
(IC = 14 mAdc, VCE = 10 Vdc, f = 0.5 GHz)
(IC = 14 mAdc, VCE = 10 Vdc, f = 1.0 GHz) 15 16
11 -dB
MSG Maximum Stable Gain
(IC = 14 mAdc, VCE = 10 Vdc, f = 0.5 GHz)
(IC = 14 mAdc, VCE = 10 Vdc, f = 1.0 GHz) -20
15 -dB
GU max Maximum Unilateral Gain (1)
(IC = 14 mAdc, VCE = 10 Vdc, f = 0.5 GHz)
(IC = 14 mAdc, VCE = 10 Vdc, f = 1.0 GHz) -18
12.5 -dB
Table 1. Common Emitter S-Parameters, @ VCE = 10 V, IC = 14 mA
f
S11
S21
S12
S22
(MHz) |S11| ∠ φ |S21| ∠ φ |S12| ∠ φ |S22| ∠ φ
100 0.382 -41 21.21 141 0.016 79 0.718 -9
200 0.282 -77 14.85 116 0.028 74 0.662 -18
300 0.217 -101 10.71 104 0.039 74 0.599 -20
500 0.162 -131 6.78 91 0.061 76 0.558 -24
700 0.140 -151 4.98 83 0.082 76 0.55 -28
800 0.135 -159 4.42 80 0.093 76 0.552 -29
1000 0.124 -176 3.59 74 0.117 75 0.553 -33
PRELIMINARY BFR90.PDF 3-10-99
BFR90
Macro X
Power Macro
Macro T SO-8
Efficiency (%)
Gu Max (dB)
IC max (
mA)
Package
Device
RF (Low Power PA / General Purpose) Selection Guide
MACRO X MRF559 NPN 870 0.5 6.5 70 7.5 16 150
MACRO X MRF559 NPN 870 0.5 9.5 65 12.5 16 150
SO-8 MRF8372,R1,R2 NPN 870 0.75 8 55 12.5 16 200
POWER MACRO MRF557 NPN 870 1.5 8 55 12.5 16 400
POWER MACRO MRF557T NPN 870 1.5 8 55 12.5 16 400
MACRO X MRF559 NPN 512 0.5 10 65 7.5 16 150
MACRO X MRF559 NPN 512 0.5 13 60 12.5 16 150
TO-39 2N3866ANPN 400 1 10 45 28 30 400
SO-8 MRF3866, R1, R2 NPN 400 1 10 45 28 30 400
POWER MACRO MRF555 NPN 470 1.5 11 50 12.5 16 400
POWER MACRO MRF555T NPN 470 1.5 11 50 12.5 16 400
SO-8 MRF4427, R2 NPN 175 0.15 18 60 12 20 400
TO-39 2N4427 NPN 175 110 50 12 20 400
POWER MACRO MRF553 NPN 175 1.5 11.5 60 12.5 16 500
POWER MACRO MRF553T NPN 175 1.5 11.5 50 12.5 16 500
TO-39 MRF607 NPN 175 1.75 11.5 50 12.5 16 330
TO-39 2N6255 NPN 175 37.8 50 12.5 18 1000
TO-72 2N5179 NPN 200 20 6 12 50
GPE VCC
Device
NF (dB)
NF IC (
mA)
NF VCE
GN (dB)
Ftau (MHz)
Ccb
(pF)
BVCEO
TO-39 2N5109 NPN 200 3 10 15 12 1200 3.5 20 400
TO-39 MRF5943C NPN 200 3.4 30 15 11.4 1000 30 400
SO-8 MRF5943, R1, R2 NPN 200 3.4 30 15 15 1300 30 400
TO-72 2N5179 NPN 200 4.5 1.5 6 17 900 1 12 50
TO-72 2N2857 NPN 300 5.5 50 6 13 1600 1 15 40
TO-39 MRF517 NPN 300 7.5 50 15 5.5 4600 3 25 150
TO-72 MRF904 NPN 450 1.5 5 6 11 4000 1 15 30
TO-72 2N6304 NPN 450 5 2 5 14 1400 1 15 50
MACRO T BFR91 NPN 500 1.9 2 5 11 16.5 5000 1 12 35
MACRO T BFR96 NPN 500 2 10 10 14.5 500 2.6 15 100
SO-8 MRF5812, R1, R2 NPN 500 2 50 10 15.5 17.8 5000 15 200
MACRO X MRF581A NPN 500 2 50 10 14 15 5000 15 200
Macro BFR90 NPN 500 2.4 2 10 15 18 5000 1 15 30
TO-72 BFY90 NPN 500 2.5 2 5 20 1300 15 50
TO-72 MRF914 NPN 500 2.5 5 10 15 4500 12 40
MACRO X MRF581 NPN 500 2.5 50 10 15 17.8 5000 16 200
TO-39 MRF586 NPN 500 3 90 15 11 14.5 4500 2.2 17 200
MACRO X MRF951 NPN 1000 1.3 5 6 14 17 8000 0.45 10 100
MACRO X MRF571 NPN 1000 1.5 10 6 10 8000 1 10 70
MACRO T BFR91 NPN 1000 2.5 2 5 8 11 5000 1 12 35
MACRO T BFR90 NPN 1000 3 2 10 10 12.5 5000 1 15 30
TO-39 MRF545 PNP 14 1400 2 70 400
TO-39 MRF544 NPN 13.5 1500 70 400
RF (LNA / General Purpose) Selection Guide
1
2
3
2
3
4
1
2
4
1
8
5
RF Low Power PA, LNA, and General Purpose Discrete Selector GuideRF Low Power PA, LNA, and General Purpose Discrete Selector Guide
Low Cost RF Plastic Package Options
PRELIMINARY BFR90.PDF 3-10-99
BFR90
1.
2.
3.
PIN 1. COLLECTOR
2. EMITTER
3. BASE