SD1224
RF PRODUCTS
DIVISION
RF & MICROWAVE TRANSISTORS
P
RODUCT
P
REVIEW
DESCRIPTION
KEY FEATURES
W W W .
Microsemi
.COM
The SD1224 is an epitaxial silicon NPN planar transistor designed
primarily for 28 V FM Class C RF amplifiers utilized in ground station
transmitters. This device utilizes ballasted emitter resistors and
improved metallization systems to achieve optimum load mismatch
capability
.
IMPORTANT:
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
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175 MHz
28 Volts
Class C
Common Emitter
Efficiency 60% Min.
P
OUT
= 40 W Min.
G
P
= 7.6 dB Gain
APPLICATIONS/BENEFITS
APPLICATIONS/BENEFITS
!
VHF FM Applications
ABSOLUTE MAXIMUM RATINGS (T
CASE
= 25
擄
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
65
35
4.0
5.0
60
+200
-65 to +150
Unit
V
V
V
A
W
擄C
擄C
.
380 4LSTUD (M135)
epoxy sealed
PIN CONNECTION
THERMAL DATA
1
R
TH(j-c)
Junction-Case Thermal Resistance
2.9
擄C/W
4
3
2
1. Collector
2. Emitter
3. Base
4. Emitter
SD1224
SD1224
Copyright
錚?/div>
2000
MSC1643.PDF 2000-12-20
Microsemi
RF Products Division
140 Commerce Drive, Montgomeryville PA 18936, (215) 631-9840, Fax: (215) 631-9855
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