2N4427

2N4427.PDF 6-25-03
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
2N4427
P
OUT
(R
L
=50 OHMS)
V
cc
= 12V
P
IN
(R
S
=50 OHMS)
L
1
L
2
L
4
L
3
C1
C2
C3
C4
C6
C5
Figure 1 - 175 MHz RF AMPLIFIER CIRCUIT FOR G
PE
, P
OUT
,
AND EFFICIENCY SPECIFICATIONS.
L
1
: 2 TURNS No. 16 wire, 3/16” ID, 1/4” long L
2
: Ferrite choke, Z=450 ohms
L
3
: 2 TURNS No. 16 wire, 1/4” ID, 1/4” long L
4
: 4 TURNS No. 16 wire, 3/8” ID, 3/8” long
Capacitor values in pF unless Tuning capacitors are air variable
otherwise indicated.
.
2N4427.PDF 6-25-03
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
2N4427
Efficiency (%)
GPE Freq (MHz)
Freq (MHz)
Gu Max (dB)
IC max (mA)
Package
Device
IC max (mA)
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 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
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
Pout (watts)
GPE (dB)
GPE VCC
BVCEO
Type
Packag
Device
Type
NF
(dB)
NF IC (mA)
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
3
1
2
3
4
1
4
8
5
Macro X
Power
Macro T
SO-8
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
2N4427.PDF 6-25-03
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
2N4427

2N4427

Mfr. #:
Manufacturer:
Central Semiconductor
Description:
Bipolar Transistors - BJT NPN VHF/UHF AM
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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