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RF & MICROWAVE DISCRETE
LOW POWER TRANSISTORS
Features
• Low Cost SO-8 Plastic Surface Mount Package.
• S-Parameter Characterization
• Tape and Reel Packaging Options Available
140 COMMERCE DRIVE
MONTGOMERYVILLE, PA
18936-1013
PHONE: (215) 631-9840
FAX: (215) 631-9855
MRF4427, R1, R2
• Low Voltage Version of MRF3866
• Maximum Available Gain – 20dB(typ) @ 200MHz
SO-8
R1 suffix–Tape and Reel, 500 units
R2 suffix–Tape and Reel, 2500 units
DESCRIPTION: Designed for general-purpose RF amplifier applications, such as; pre-drivers, Oscillators, etc.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)
Symbol Parameter Value Unit
V
CEO
V
CBO
V
EBO
I
C
Collector-Emitter Voltage 20 Vdc
Collector-Base Voltage 40 Vdc
Emitter-Base Voltage 2.0 Vdc
Collector Current 400 mA
Thermal Data
P
D
T
stg
R
θJA
MSC1313.PDF 10-25-99
Total Device Dissipation @ TC = 25ºC
Derate above 25ºC
Storage Temperature
Thermal Resistance, Junction to Ambient
1.5
12.5
-65 to + 150 ºC
125 ºC/W
Watts
mW/ ºC
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ELECTRICAL SPECIFICATIONS (Tcase = 25°C)
STATIC
(off)
Symbol Test Conditions Value
Min. Typ. Max. Unit
BVCEO Collector-Emitter Breakdown Voltage
(IC = 5.0 mAdc, IB = 0) 20 - - Vdc
BVCBO Collector-Base Breakdown Voltage
(IC = 0.1 mAdc, IE = 0) 40 - - Vdc
BVEBO Emitter-Base Breakdown Voltage
(IE = 0.1 mAdc, IC = 0) 2.0 - - Vdc
ICEO Collector Cutoff Current
(VCE = 20 Vdc, VBE = 0 Vdc) - - .02 mA
(on)
HFE DC Current Gain
(IC = 100 mAdc, VCE = 5 Vdc)
(IC = 360 mAdc, VCE = 5 Vdc)
10
5.0
MRF4427, R1, R2
-
-
200
-
VCE(sat) Collector-Emitter Saturation Voltage
(IC = 100 mAdc, IB = 20 mA) 60 -
DYNAMIC
Symbol Test Conditions Value
Min. Typ. Max. Unit
Ftau Current-Gain Bandwidth Product
(IC = 50 mAdc, VCE = 12 Vdc, f = 200 MHz)
Cob Output Capacitance
(VCB = 12 Vdc, IE = 0, f = 1.0 MHz)
-
-
mVdc
1.3 - GHz
- 3.4 GHz
MSC1313.PDF 10-25-99
Page 3
MRF4427, R1, R2
FUNCTIONAL
Symbol Test Conditions Value
Min. Typ. Max. Unit
G
U max
MAG Maximum Available Gain
|S21|
Maximum Unilateral Gain
IC = 50 mAdc, VCE = 12 Vdc, f = 200 MHz 16 18
IC = 50 mAdc, VCE = 12 Vdc, f = 200 MHz 18 20
2
Insertion Gain (calculated)
IC = 50 mAdc, VCE = 12 Vdc, f = 200 MHz 12 14 - dB
Table 1. Common Emitter S-Parameters, @ VCE = 12 V, IC = 50 mA
-
-
dB
dB
(MHz) |S11|
50 .672 -145 20.15 112 .021 45 .447 -59
100 .721 -163 10.78 96 .026 44 .271 -67
200 .743 -174 5.37 85 .037 54 .199 -72
500 .768 170 2.18 63 .070 59 .264 -86
750 .775 161 1.53 48 .096 62 .356 -98
1000 .778 152 1.07 36 .122 65 .437 -109
∠ φ
|S21|
∠ φ
|S12|
∠ φ
|S22|
∠ φ
MSC1313.PDF 10-25-99
Page 4
Efficiency (%)
Freq (MHz)
Freq (MHz)
Gu Max (dB)
IC max (
Package
Device
IC max (mA)
RF (Low Power PA / General Purpose) Selection Guide
Pout (watts)
GPE (dB)
GPE VCC
BVCEO
Type
Package
Device
Type
NF (dB)
NF IC (
NF VCE
GNF (dB)
Ftau (MHz)
Ccb
BVCEO
RF (LNA / General Purpose) Selection Guide
RF Low Power PA, LNA, and General Purpose Discrete Selector GuideRF Low Power PA, LNA, and General Purpose Discrete Selector Guide
MRF4427, R1, R2
SO-8 MRF4427, R2 NPN 175 0.15 18 60 12 20 400
TO-39 2N4427 NPN 175 1 10 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 3 7.8 50 12.5 18 1000
TO-72 2N5179 NPN 200 20 6 12 50
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 2N3866A NPN 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
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
mA)
(pF)
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
mA)
MSC1313.PDF 10-25-99
Page 5
MRF4427, R1, R2
PIN 1. EMITTER
2. COLLECTOR
3. COLLECTOR
.
4. EMITTER
8.
1.
5.
4.
5. EMITTER
6. BASE
7. BASE
8. EMITTER
MSC1313.PDF 10-25-99
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