140 COMMERCE DRIVE
MONTGOMERYVILLE, PA
18936-1013
PHONE: (215) 631-9840
FAX: (215) 631-9855
SD4012
RF & MICROWAVE TRANSISTORS
UHF COMMUNICATIONS APPLICATIONS
Features
•
•
•
•
•
•
•
•
400 MHz
28 VOLTS
P
OUT
= 3 WATTS
G
P
= 11.7 dB GAIN MINIMUM
OVERLAY GEOMETRY
LOW THERMAL RESISTANCE
INPUT/OUTPUT MATCHING
REFRACTORY/GOLD METALIZATION
DESCRIPTION:
The SD4012 is a gold metallized epitaxial silicon NPN planar
transistor using diffused emitter ballast resistors for superior
ruggedness. The SD4012 can withstand a 30:1 VSWR.
Ideal for military communications applications in the 225 – 400
MHz frequency range, the SD4012 provides typically 13 dB gain
with 60% collector efficiency.
ABSOLUTE MAXIMUM RATINGS
(Tcase = 25° C)
°
Symbol
V
CBO
V
CEO
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
55
30
3.5
0.7
11
+200
-65 to+150
Unit
V
V
V
A
W
°
C
°
C
Thermal Data
R
TH(J-C)
Thermal Resistance Junction-case
16.0
°
C/W
MSCXXXX.PDF 01-19-99
SD4012
ELECTRICAL SPECIFICATIONS (Tcase = 25° C)
25
°
Symbol
BV
CBO
BV
EBO
BV
CES
BV
CEO
I
CBO
HFE
I
C
= 20 mA
I
E
= 5 mA
I
C
= 20 mA
I
C
= 50 mA
V
CB
= 30 V
V
CE
= 5 V
STATIC
Test Conditions
Min.
I
E
= 0mA
I
C
= 0 mA
V
BE
= 0 V
I
B
= 0 mA
I
E
= 0 mA
I
C
= 1 A
55
3.5
55
30
---
10
Value
Typ.
---
---
---
---
---
---
Max.
---
---
---
---
1
150
Unit
V
V
V
V
mA
---
DYNAMIC
Symbol
P
OUT
η
C
G
P
VSWR
C
OB
f = 400 MHz
f = 400 MHz
f = 400 MHz
f = 400 MHz
f = 1 MHz
Test Conditions
Min.
P
IN
= 0.2 W
P
IN
= 0.2 W
P
IN
= 0.2 W
P
IN
= 0.2 W
V
CB
= 28V
V
CC
= 28 V
V
CC
= 28 V
V
CC
= 28 V
V
CC
= 28 V
3.0
---
11.7
---
---
Value
Typ.
---
---
---
---
---
Max.
---
---
---
30:1
6
Unit
W
%
dB
W
W
IMPEDANCE DATA
FREQ
300 MHz
325 MHz
350 MHz
375 MHz
400 MHz
425 MHz
450 MHz
P
OUT
= 3 W
V
CE
= 28 V
Z
IN
(
Ω)
0.8 – j0.5
0.9 – j0.2
1.1 + j.25
1.5 + j.75
1.9 + j1.0
2.5 + j0.7
3.3 + j0.1
Z
CL
(
Ω)
33.0 + j57.0
31.0 + j52.0
28.0 + j49.0
26.0 + j46.0
23.0 + j45.0
20.0 + j42.0
17.0 + j36.0
MSCXXXX.PDF 01-19-99
SD4012
PACKAGE MECHANICAL DATA
MSCXXXX.PDF 01-19-99
