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PD85035C

RF power transistor, LdmoST family

Features
Excellent thermal stability
Common source configuration
POUT = 35 W with 14.5 dB gain @ 945 MHz /
13.6 V
BeO-free ceramic package
ESD protection
In compliance with the 2002/95/EC european
directive
M243
Epoxy sealed
Description
The PD85035C is a common source Figure 1. Pin connection
N-channel, enhancement-mode lateral Field-
Effect RF power transistor. It is designed for high
gain, broadband commercial and industrial
applications. It operates at 13.6 V in common
source mode at frequencies of up to 1 GHz.
1
PD85035C boasts the excellent gain, linearity and
reliability of ST's latest LDMOS technology.
PD85035C's superior linearity performance
makes it an ideal solution for car mobile radio. 3


2

1. Drain
2. Gate
3. Source




Table 1. Device summary
Part number Package Packaging

PD85035C M243 Box




July 2009 Doc ID14138 Rev 2 1/11
www.st.com 11
Contents PD85035C


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
2.3 ESD protection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10




2/11 Doc ID14138 Rev 2
PD85035C Electrical data


1 Electrical data

1.1 Maximum ratings

Table 2. Absolute maximum ratings (TCASE = 25