SD1474
RF & MICROWAVE TRANSISTORS
RF PRODUCTS
DIVISION
P
RODUCT
P
REVIEW
DESCRIPTION
KEY FEATURES
W W W .
Microsemi
.COM
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
425 MHz
28 Volts
Common Emitter
Gold Metallization
Emitter Ballasted
P
OUT
= 48 W Min.
G
P
= 6.8 dB Gain
APPLICATIONS/BENEFITS
APPLICATIONS/BENEFITS
UHF Pulsed
Applications
ABSOLUTE MAXIMUM RATINGS (T
CASE
= 25
°
C)
Symbol
V
CBO
V
CES
V
EBO
I
C
P
DISS
T
J
T
STG
Parameter
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Device Current
Power Dissipation
Junction Temperature
Storage Temperature
Value
60
60
4.0
5
87.5
+200
-65 to +150
Unit
V
V
V
A
W
°C
°C
THERMAL DATA
PIN CONNECTION
1
R
TH(j-c)
Junction-Case Thermal Resistance
2.0
°C/W
SD1474
SD1474
2
3
1. Collector
2. Emitter
Copyright
2000
MSC1652.PDF 2001-01-04
4
3. Base
4. Emitter
RF Products Division
140 Commerce Drive, Montgomeryville PA 18936, (215) 631-9840, Fax: (215) 631-9855
Microsemi
Page 1
SD1474
RF & MICROWAVE TRANSISTORS
RF PRODUCTS
DIVISION
P
RODUCT
P
REVIEW
W W W .
Microsemi
.COM
STATIC ELECTRICAL SPECIFICATIONS (T
CASE
= 25°C)
°
Symbol
BV
CBO
BV
CES
BV
CEO
BV
EBO
I
CBO
h
FE
I
C
=
50 mA
I
C
=
50 mA
I
C
=
50 mA
I
E
=
5 mA
V
CB
=
30 V
V
CE
=
5 V
Test Conditions
I
E
=
0 mA
V
BE
=
0 V
I
B
=
0 mA
I
C
=
0 mA
I
E
=
0 mA
I
C
=
1 A
Min.
60
60
32
4.0
20
SD1474
Typ.
Max.
Units
V
V
V
V
mA
5
100
DYMANIC ELECTRICAL SPECIFICATIONS (T
CASE
= 25°C)
°
Symbol
P
OUT
G
P
η
C
C
OB
f
=
425 MHz
f
=
425 MHz
f
=
425 MHz
f
=
1 MHz
Test Conditions
P
IN
=
10 W
P
IN
=
10 W
P
IN
=
10 W
V
CB
=
28 V
V
CE
=
28 V
V
CE
=
28 V
V
CE
=
28 V
Min.
48
6.8
50
SD1474
Typ.
Max.
Units
W
dB
%
pF
42
IMPEDANCE DATA
Freq.
420 MHz
430 MHz
440 MHz
450 MHz
Z
IN (Ω)
4.2 + j 3.8
4.2 + j 3.1
5.1 + j 2.8
5.0 + j 2.5
Z
CL (Ω)
3.2 - j 0.0
3.9 - j 0.6
4.4 - j 1.1
4.9 - j 1.5
E
LECTRICALS
E
LECTRICALS
Copyright
2000
MSC1652.PDF 2001-01-04
RF Products Division
140 Commerce Drive, Montgomeryville PA 18936, (215) 631-9840, Fax: (215) 631-9855
Microsemi
Page 2
SD1474
RF & MICROWAVE TRANSISTORS
RF PRODUCTS
DIVISION
P
RODUCT
P
REVIEW
W W W .
Microsemi
.COM
PACKAGE DATTA
PACKAGE DATTA
Copyright
2000
MSC1652.PDF 2001-01-04
RF Products Division
140 Commerce Drive, Montgomeryville PA 18936, (215) 631-9840, Fax: (215) 631-9855
Microsemi
Page 3
SD1474
RF & MICROWAVE TRANSISTORS
RF PRODUCTS
DIVISION
P
RODUCT
P
REVIEW
W W W .
Microsemi
.COM
NOTES
NOTES
Copyright
2000
MSC1652.PDF 2001-01-04
RF Products Division
140 Commerce Drive, Montgomeryville PA 18936, (215) 631-9840, Fax: (215) 631-9855
Microsemi
Page 4
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