Ericsson PTB20008 Datasheet

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Description

PTB 20008

10 Watts, 935–960 MHz

Cellular Radio RF Power Transistor

The 20008 is a class AB, NPN, common emitter RF power transistor
intended for 24 Vdc operation from 935 to 960 MHz. Rated at 10
watts minimum output power, it may be used for both CW and PEP
applications. Ion implantation, nitride surface passivation and gold
metallization ensure excellent device reliability. 100% lot traceability
is standard.

Typical Output Pow er vs. Input Power

15.0

12.5

10.0

Output Power (Watts)

VCC = 24 V
I

= 100 mA

CQ

f = 960 MHz

7.5

5.0

2.5

0.0

0.2 0.4 0.6 0.8 1.0 1.2

Input Power (Watts)

 10 Watts, 935–960 MHz
 Class AB Characteristics
 50% Collector Efficiency at 10 Watts
 Gold Metallization
 Silicon Nitride Passivated

20008

LOT CODE

Package 20201

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 0.4 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

4.0 Vdc

6.7 Adc
65 Watts

–40 to +150 °C

2.7 °C/W

PTB 20008

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Electrical Characteristics (100% Tested)

Characteristic Conditions Symbol Min Typ Max Units

Breakdown Voltage C to E IB = 0 A, IC = 100 mA V
Breakdown Voltage C to E VBE = 0 V, IC = 100 mA V
Breakdown Voltage E to B IC = 0 A, IE = 5 mA V
DC Current Gain VCE = 5 V, IC = 1 A h

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

FE

25 30 — Volts
55 70 — Volts

3.5 5 — Volts
20 50 120 —

RF Specifications (100% Tested)

Characteristic Symbol Min Typ Max Units

Gain

(V

Collector Efficiency

(V

Intermodulation Distortion

(V
f1 = 959.999 MHz, f2 = 960.000 MHz)

Load Mismatch Tolerance

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

= 24 Vdc, P

CC

= 24 Vdc, P

CC

= 24 Vdc, P

CC

= 24 Vdc, P

CC

= 10 W, ICQ = 100 mA, f = 960 MHz) G

out

= 10 W, ICQ = 100 mA, f = 960 MHz) η

out

= 10 W(PEP), ICQ = 100 mA, IMD — -32 — dBc

out

= 10 W, ICQ = 100 mA Ψ — — 30:1 —

out

pe

C

9.5 10 11.5 dB

50 — — %

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

(V

CC

= 24 Vdc, P

= 10 W, ICQ = 100 mA)

out

Z Source Z Load

Frequency Z Source Z Load

MHz R jX R jX

935 1.5 -2.1 1.6 2.3
960 3.5 4.6 2.1 -3.8

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