1

Maximum Ratings

Parameter

Symbol

Value

Unit

Collector-Emitter Voltage

55

Vdc

Collector-Base Voltage

55

Vdc

Emitter-Base Voltage (collector open)

4

Vdc

Collector Current (continuous)

0.5

Adc

Total Device Dissipation at Tflange = 25°C

10

Watts

Above 25°C derate by

0.057

W/°C

Storage Temperature Range

T

STG

–40 to +150

°C

Thermal Resistance (Tflange = 70°C)

17.5

°C/W

PTB 20249

2.5 Watts, 1465–1513 MHz

Cellular Radio RF Power Transistor

Description

The 20249 is a class AB, NPN, common emitter RF power transistor

intended for 26 Vdc operation from 1465 to 1513 MHz. Rated at 2.5

watts minimum output power, it may be used for both CW and PEP

applications. Ion implantation, nitride surface passivation and gold

metallization are used to ensure excellent device reliability. 100% lot

traceability is standard.

Typical Output Power vs. Input Power

0

1

2

3

4

5

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

Input Power (Watts)

f = 1513 MHz

Package 20227

20249

LOT

CODE

9/28/98