April 2007 Rev 2 1/9
9
SD1728 (TH430)
RF & Microwave transistors
HF SSB application
Features
13.56MHz
44V
Gold metallization
Common emitter
P
OUT
= 200W with 15dB gain
Description
The SD1728 is a 50V epitaxial silicon NPN planar
transistor designed primarily for SSB and
Industrial HF pplications. This device utilizes
emitter ballasting for improved ruggedness and
reliability.
Pin connection
M177
Epoxy sealed
1
3
4
2
1. Collector
2. Emitter
3. Base
4. Emitter
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Table 1. Device summary
Part number Package Marking
SD1728 M177 TH430
Contents SD1728 (TH430)
2/9
Contents
1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Static . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Typical performance (Classe C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SD1728 (TH430) Electrical data
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1 Electrical data
1.1 Maximum ratings
1.2 Thermal data
Table 2. Absolute maximum ratings (T
CASE
= 25°C)
Symbol Parameter Value Unit
V
CBO
Collector-base voltage 110 V
V
CEO
Collector-emitter voltage 55 V
V
EBO
Emitter-base voltage 4.0 V
I
C
Device current 40 A
P
DISS
Power dissipation 330 W
T
J
Maximum operating junction temperature 200 °C
T
STG
Storage temperature -65 to +150 °C
Table 3. Thermal data
Symbol Parameter Value Unit
R
thJC
Junction - case thermal resistance 0.4 °C/W

SD1728

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
RF Bipolar Transistors NPN 50V 30MHz
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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