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2N4428

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, U na.

20 STERN AVE.

SPRINGFIELD, NEW JERSEY 07081 U.S.A.

TELEPHONE: (973) 376-2922 (212)227-6005 FAX: (973) 376-8960

NPN SILICON HIGH FREQUENCY TRANSISTOR

2N4428

MAXIMUM RATINGS Ic

VCE PDISS L TSTG

0JC

425mA

30V

3.5 W @ T

c

= 25 °C

-65 °C to +200 °C -65 °C to +200 °C

50 °C/W

PACKAGE STYLE TO-39

1

*a A 4>b

«bi 4>0

»Dt h 1 k 1 I, 1:

P Q a

DIMENSIONS INCHES

WIN.

0190 0240 0016 0016 0350 0315 0.009 0028 0.029 0500

0250 0 100

MAX.

0210 0260 0.021 0019 0370 0.335 0.125 0.034 0.040

0050

45° NOMINAL 90' NOMINAL

UILUMETERS WIN.

4.83 610 0.406 0406 889 800 0229 0.711 0.737 12.70

635 254

MAX.

533 6.60 0.533 0.483 940 8.51 3.18 0.864 1.02

1 27

1 = EMITTER 2 = BASE 3 = COLLECTOR

CHARACTERISTICS Tc = 25°c SYMBOL

BVcEo BVCER

BVEBO

ICEX

h

FE

TEST CONDITIONS

l

c

= 20 mA

lc = 20mA RBE=10ii lc=100|oA

VC E= 5 5 V VBE = -1.5V VCE = 5.0 V lc = 50 mA

lc = 400 mA

ft

COB

Pin

t\E = 20 V lc = 50 mA f = 200 MHz

VCB = 28 V f = 1 .0 MHz Vcc = 28 V f = 200 MHz Pout = 750 mW Rs = 50 Q

MINIMUM 35 55 3.5

20 5.0

700

35

TYPICAL

1000

1.5

MAXIMUM

1.0 200

3.5 75

UNITS V V V mA

— MHz

PF

mW

%

NJ Semi-Conductors reserves the right to change test conditions, parameters limits and package dimensions without notice information furnished by NJ Semi-Conductors is believed to be both accurate and reliable at the time of going to press. However NJ Semi-Conductors assumes no responsibility for any errors or omissions discovered in its use. NJ Semi-Conductors encourages customers to verify that datasheets are current before placing orders.

Quality Semi-Conductors

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