Ericsson PTB20145 Datasheet

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Description

PTB 20145

9 Watts, 915–960 MHz

Cellular Radio RF Power Transistor

The 20145 is a class AB, NPN, common emitter RF power transistor
intended for 25 Vdc operation from 915 to 960 MHz. Rated at 9 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 Pow er vs. Input Pow er

12

10

8

6

4

2

Output Power (Watts)

0

0.00 0.25 0.50 0.75 1.00 1.25

Input Power (Watts)

VCC = 25V
I

= 50 mA

CQ

f = 960 MHz

 9 Watts, 915–960 MHz
 Class AB Characteristics
 50% Min Collector Efficiency at 9 Watts
 Tested to solderability standards:

- IEC-68-2-54

- ANSI/J Std-002-A

 Gold Metallization
 Silicon Nitride Passivated
 Surface Mountable
 Available in Tape and Reel

20145

LOT CODE

Package 20208

Maximum Ratings

Parameter Symbol Value Unit

Collector-Emitter Voltage V
Collector-Base Voltage V
Emitter-Base Voltage (collector open) V
Collector Current (continuous) I
Total Device Dissipation at T

Above 25°C derate by 0.19 W/°C
Storage Temperature Range T

Thermal Resistance (T

9/28/98

flange

= 25°C P

flange

= 70°C) R

1

CER
CBO
EBO

C

D

STG

θJC

55 Vdc
60 Vdc

4.0 Vdc

2.6 Adc
33 Watts

–40 to +150 °C

5.3 °C/W

PTB 20145

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Electrical Characteristics (100% Tested)

Characteristic Conditions Symbol Min Typ Max Units

Breakdown Voltage C to E IB = 0 A, IC = 50 mA V
Breakdown Voltage C to E VBE = 0 V, IC = 50 mA V
Breakdown Voltage E to B IC = 0 A, IE = 250 mA V
DC Current Gain VCE = 5 V, IC = 1 A h

(BR)CEO
(BR)CES
(BR)EBO

FE

24 30 — Volts
65 70 — Volts

3.5 5 — Volts
20 50 120 —

RF Specifications (100% Tested)

Characteristic Symbol Min Typ Max Units

Gain

(V

Collector Efficiency

(V

Load Mismatch Tolerance

(V
f = 960 MHz—all phase angles at frequency of test)

= 25 Vdc, P

CC

= 25 Vdc, P

CC

= 25 Vdc, P

CC

= 9 W, ICQ = 50 mA, f = 960 MHz) G

out

= 9 W, ICQ = 50 mA, f = 960 MHz) η

out

= 9 W, ICQ = 50 mA, Ψ — — 30:1 —

out

pe

C

910—dB

50 — — %

Impedance Data (data shown for fixed-tuned broadband circuit)

(V

= 25 Vdc, P

CC

= 9 W, ICQ = 50 mA)

out

Z Source Z Load

Frequency Z Source Z Load

MHz R jX R jX

915 2.2 -2.5 3.4 7.1
937 2.2 -2.4 3.5 7.9
960 2.1 -2.2 3.7 8.6

2