SD4590

RF POWER TRANSISTORS

800-960 MHz CELLULAR BASE STATION

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GOLD METALLIZATION

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DIFFUSED EMITTER BALLASTING

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INTERNAL INPUT/OUTPUT MATCHING

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COMMON EMITTER CONFIGURATION

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DESIGNED FOR LINEAR OPERATION HIGH

SATURATED POWER CAPABILITY 26 VOLT,

900 MHz PERFORMANCE

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GAIN = 8.5 dB MIN.

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INHERENT RUGGEDNESS:

LOAD MISMATCH TOLERANCE OF

5:1 MIN. VSWR

3 dB OVERDRIVE CAPABILITY

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ESD SENSITIVITY, CLASS 3 (MIL STD-883D

METHOD 3015)

DESCRIPTION

The SD4590 is designed for both analog and

digital cellular base stations over the 800 to 960

MHz frequency range, specifically those systems

requiring the high linearity and efficiency afforded

by class AB operation. Integrated input/output

pre-matching

simplifies

amplifier

design.

Ruggedness, MTTF, and linearity are enhanced

using

diffused

emitter

resistors

and

refractory/gold metallization.

PIN CONNECTION

March 2000

Symbol

Parameter

Val ue

Uni t

Collect or-Base Voltage

65

V

Collect or-Emitter Volt age

28

V

Emitter-Base Voltage

3.5

V

Device Current

25

A

Power Dissipation

300

W

Max. O perat ing Junction Temperature

200

Storage Temperature

-65 to 150

THERMAL DATA

Junct ion-Case Thermal Resistance

0.60

M208

epoxy sealed

®

ORDER CODE

BRANDING

SD4590

SD4590

1. Collector

3.Base

2. Emitter

1/8