Ericsson PTB20155 Datasheet

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Description

PTB 20155

9 Watts, 610–960 MHz

UHF Power Transistor

The 20155 is an NPN common base RF power transistor intended
for 28 Vdc class C operation from 610 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 Gain & Retur n Loss vs. Frequency

(as measured in a broadband circuit)

10

Gain (dB)

8

VCC = 28 V

6

4

Gain (dB)

2

Return L oss (dB)

0

700 750 800 850 900 950

Frequency (MHz)

Pin = 9 W

0

-5

-10

-15

-20

-25

Return Loss (dB)

Maximum Ratings

 9 Watts, 610–960 MHz
 Class C Characteristics
 Gold Metallization
 Silicon Nitride Passivated

20155

LOT CODE

Package 20209

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 0.37 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

40 Vdc
50 Vdc

4 Vdc

6.7 Adc
65 Watts

–40 to +150 °C

2.7 °C/W

PTB 20155

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Electrical Characteristics (100% Tested)

Characteristic Conditions Symbol Min Typ Max Units

Breakdown Voltage C to E VBE = 0 V, IC = 5 mA V
Breakdown Voltage E to B IC = 0 A, IE = 5 mA V
DC Current Gain VCE = 5 V, IC = 300 mA h
Output Capacitance VCB = 28 V, IE = 0 A, f = 1 MHz C
Collector Cut-off Current VCB = 28 V, IE = 0 A I

(BR)CES
(BR)EBO

FE

ob

CBO

50 — — Volts

3.5 — — Volts
25 — 100 —
— 10.5 11 pF
— — 1.5 mA

RF Specifications (100% Tested)

Characteristic Symbol Min Typ Max Units

Gain

(V

Collector Efficiency

(V

= 28 Vdc, P

CC

= 28 Vdc, P

CC

= 9 W, f = 960 MHz) G

out

= 9 W, f = 960 MHz) η

out

pe

8.0 9.0 — dB

C

45 53 — %

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

(V

= 28 Vdc, P

CC

out

= 9 W)

Z Source Z Load

Frequency Z Source Z Load

MHz R jX R jX

850 4.4 -10.7 8.6 3.6
900 6.4 -10.0 9.3 4.9
960 6.4 -14.3 7.8 3.1

2