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140 COMMERCE DRIVE
MONTGOMERYVILLE, PA
18936-1013
PHONE: (215) 631-9840
FAX: (215) 631-9855
RF & MICROWAVE DISCRETE
LOW POWER TRANSISTORS
MRF517
Features
Silicon NPN, To-39 packaged VHF/UHF Transistor
Gpe = 10 dB (typ) @ 60 mA, 300 MHz
3 GHz Current-Gain Bandwidth Product @ 60mA
Broadband Noise Figure = 7.5 dB @ 50mA, 300 MHz
1. Emitter
2. Base
3. Collector
TO-39
DESCRIPTION:
The MRF517 is a silicon NPN transistor, designed for VHF and UHF equipment.
Applications include low noise broadband amplifier; pre-driver, driver, and output stages.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)
Symbol
Parameter
VCEO
Collector-Emitter Voltage
VCBO
Collector-Base Voltage
VEBO
Emitter-Base Voltage
IC Collector Current
Thermal Data
PD Total Device Dissipation @ TA = 25ºC
Derate above 25ºC
Value
20
35
3.0
150
Unit
Vdc
Vdc
Vdc
mA
2.5 Watts
0.02 mW/ ºC
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.

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ELECTRICAL SPECIFICATIONS (Tcase = 25°C)
STATIC
(off)
Symbol
BVCER
BVCEO
BVCBO
BVEBO
ICEO
Test Conditions
Collector-Emitter Breakdown Voltage
(IC = 5.0 mAdc, RBE = 330 ohms)
Collector-Emitter Breakdown Voltage
(IC=5.0 mAdc, IB=0)
Collector-Base Breakdown Voltage
(IC = 100 µAdc, IE = 0)
Emitter-Base Breakdown Voltage
(IE = 100 µAdc, IC = 0)
Collector Cutoff Current
(VCE = 15 Vdc, IB = 0)
(on)
HFE
DC Current Gain
(IC = 60 mAdc, VCE = 10 Vdc)
DYNAMIC
Symbol
Test Conditions
fT Current-Gain - Bandwidth Product
(IC = 60 mAdc, VCE = 15 Vdc, f = 200 MHz)
Cob Output Capacitance
(VCB = 15 Vdc, IE = 0, f = 1.0 MHz)
FUNCTIONAL
Symbol
NF
Gpe
Test Conditions
Broadband Noise Figure
(IC = 50 mAdc, VCE = 15Vdc, f = 300 MHz
Common Emitter Amplifier Power Gain
(VCE = 15 Vdc, IC = 60 mAdc, f = 300MHz
MRF517
Value
Min.
Typ.
Max.
25 -
-
20 -
30 -
3.0 -
-
-
-
- - 100
Unit
Vdc
Vdc
Vdc
Vdc
µAdc
50 - 150
-
Value
Min.
Typ.
Max.
34 -
- 3.0 4.5
Unit
GHz
pF
Value
Min.
Typ.
Max.
- - 7.5
9 10 -
Unit
dB
dB
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.

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TEST CIRCUIT SCHEMATIC
MRF517
RF Input
R4 L3 C6
C1 L1
C7
R1
C1
L2
+VBB
T1
C4
L4
R2 R3
+15Vdc
C5
RF Output
C1: 1.0-10 pF Johanson
C2, 6, 7: 0.002 uF Ceramic
C3, 5: 0.1 uF 50 Vdc Tantalum
C4: 1000 pF Button
L1: 1 Turn, #20 AWG
L2: 5.6 uH Molded Choke
L3: 4 Turns, #20 AWG, ¼” ID
L4:
T1:
R1:
R2, 3:
R4:
VK200
16:1 Bifilar Wound, #20 AWG
Enameled Wire, Wound on
1041T060-4C4 Core.
4.7K, ¼ W, 10%
27 ohm, ¼ W, 5%
270 ohm, ¼ W, 5%
Figure 1. 40 to 330 MHz Broadband Test Schematic
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.

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MRF517
RF Low Power PA, LNA, and General Purpose Discrete Selector Guide
SO-8
TO-39
POWER MACRO
POWER MACRO
TO-39
TO-39
TO-72
MRF4427, R2
2N4427
MRF553
MRF553T
MRF607
2N6255
2N5179
NPN 175 0.15 18 60 12 20 400
NPN 175 1 10 50 12 20 400
NPN 175 1.5 11.5 60 12.5 16 500
NPN 175 1.5 11.5 50 12.5 16 500
NPN 175 1.75 11.5 50 12.5 16 330
NPN 175 3 7.8 50 12.5 18 1000
NPN 200 20 6 12 50
MACRO X
MRF559
NPN 512
MACRO X
MRF559
NPN 512
TO-39
2N3866A NPN 400
SO-8
MRF3866, R1, R2 NPN 400
POWER MACRO
MRF555
NPN 470
POWER MACRO MRF555T NPN 470
0.5
0.5
1
1
1.5
1.5
10 65 7.5 16 150
13 60 12.5 16 150
10 45 28 30 400
10 45 28 30 400
11 50 12.5 16 400
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
RF (Low Power PA / General Purpose) Selection Guide
Low Cost RF Plastic Package Options
1
4
3
TO-39
TO-39
SO-8
TO-72
TO-72
TO-39
2N5109
NPN 200 3 10 15
MRF5943C NPN 200 3.4 30 15
MRF5943, R1, R2 NPN 200 3.4 30 15
2N5179
NPN 200 4.5 1.5 6
2N2857
NPN 300 5.5 50 6
MRF517
NPN 300 7.5 50 15
12 1200 3.5 20 400
11.4 1000
30 400
15 1300
30 400
17 900 1 12 50
13 1600 1 15 40
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
MACRO X
MACRO T
MACRO T
MRF951
MRF571
BFR91
BFR90
NPN 1000 1.3 5 6 14 17 8000 0.45 10 100
NPN 1000 1.5 10 6 10
8000 1 10 70
NPN 1000 2.5 2 5 8 11 5000 1 12 35
NPN 1000 3 2 10 10 12.5 5000 1 15 30
TO-39
TO-39
MRF545
MRF544
PNP
NPN
14 1400 2 70 400
13.5 1500
70 400
RF (LNA / General Purpose) Selection Guide
85
21
Macro T
Macro X
Power Macro
SO-8
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.

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MRF517
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.