Microsemi Corporation SD1474 Datasheet
RF PRODUCTS DIVISION
DESCRIPTION
DESCRIPTION
DESCRIPTIONDESCRIPTION
RF & MICROWAVE TRANSISTORS
The SD1474 is a Class C 28 V common emitter device optimized
for pulsed applications in the 400-500MHz frequency range.
Refractory gold metallization and emitter ballasting ensure long-term
reliability as well as device ruggedness under severe load mismatch
conditions.
SD1474 is characterized for both CW and pulsed operation and is
provided in an industry–standard .400” Square hermetic package.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
C)
°°°°
Symbol Parameter Value Unit
V
V
V
P
T
ABSOLUTE MAXIMUM RATINGS (T
Collector-Base Voltage 60 V
CBO
Collector-Emitter Voltage 60 V
CES
Emitter-Base Voltage 4.0 V
EBO
I
C
DISS
T
STG
J
Device Current 5 A
Power Dissipation 87.5 W
Junction Temperature +200
Storage Temperature -65 to +150
CASE
= 25
R
TH(j-c)
Junction-Case Thermal Resistance 2.0
THERMAL DATA
°C
°C
°C/W
KEY FEATURES
KEY FEATURES
KEY FEATURES KEY FEATURES
425 MHz
28 Volts
Common Emitter
Gold Metallization
Emitter Ballasted
P
= 48 W Min.
OUT
GP = 6.8 dB Gain
APPLICATIONS/BENEFIT
APPLICATIONS/BENEFITSSSS
APPLICATIONS/BENEFITAPPLICATIONS/BENEFIT
UHF Pulsed
Applications
PIN CONNECTION
2
1. Collector
2. Emitter
SD1474
WWW.
Microsemi
. COM
1
S
S
D
D
1
1
4
4
7
7
4
4
3
3. Base
4. Emitter
4
Copyright 2000
MSC1652.PDF 2001-01-04
Microsemi
RF Products D ivision
140 Commerce Drive, Montgomeryville PA 18936, (215) 631-9840, Fax: (215) 631-9855
Page 1
2
Symbol Test Conditions
BV
BV
BV
BV
I
h
CBO
CES
CEO
EBO
V
CBO
FE
I
Symbol Test Conditions
P
G
ηC
C
OUT
P
OB
Copyright 2000
MSC1652.PDF 2001-01-04
RF PRODUCTS DIVISION
STATIC ELECTRICAL SPECIFICATIONS (T
RF & MICROWAVE TRANSISTORS
= 25°°°°C)
CASE
Min. Typ. Max.
60 V
60 V
32 V
4.0 V
5 mA
20 100
CASE
I
I
I
V
=
C
=
C
=
C
=
E
CB
CE
50 mA
50 mA
50 mA
5 mA
=
=
30 V
5 V
DYMANIC ELECTRICAL SPECIFICATIONS (T
I
V
I
I
I
I
E
B
C
E
C
=
0 mA
=
BE
=
0 mA
=
0 mA
=
0 mA
= 1
0 V
A
Min. Typ. Max.
48 W
6.8 dB
50
42 pF
=
f
425 MHz
=
f
425 MHz
=
f
425 MHz
=
f
1 MHz
=
P
10 W V
IN
=
P
10 W V
IN
=
P
10 W V
IN
V
28 V
=
CB
IMPEDANCE DATA
Freq. Z
=
28 V
CE
=
CE
=
CE
IN (Ω)
28 V
28 V
Z
420 MHz 4.2 + j 3.8 3.2 - j 0.0
430 MHz 4.2 + j 3.1 3.9 - j 0.6
440 MHz 5.1 + j 2.8 4.4 - j 1.1
450 MHz 5.0 + j 2.5 4.9 - j 1.5
Microsemi
140 Commerce Drive, Montgomeryville PA 18936, (215) 631-9840, Fax: (215) 631-9855
RF Products D ivision
SD1474
= 25°°°°C)
SD1474
CL (Ω)
SD1474
Units
Units
%
Page
WWW.
Microsemi
. COM
E
E
L
L
E
E
C
C
T
T
R
R
I
I
C
C
A
A
L
L
S
S
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