Ericsson PTB20105 Datasheet

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Description

PTB 20105

20 Watts, 925–960 MHz

Cellular Radio RF Power Transistor

The 20105 is a class AB, NPN, common emitter RF power transistor
intended for 25 Vdc operation from 925 to 960 MHz. Rated at 20
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.

Output Power vs. Input Pow er

25

20

15

10

VCC = 25 V
I

5

Output Power (Watts)

0

01234

Input Power (Wa tts)

= 0.100 A

CQ

f = 960 MHz

Maximum Ratings

 Class AB Characteristics
 Performance at 960 MHz, 25 V

- Output Power = 20 W

- Efficiency = 50% Min

 Gold Metallization
 Silicon Nitride Passivated

20105

LOT CODE

Package 20201

CC

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

5.0 Adc
70 Watts

–40 to +150 °C

2.5 °C/W

PTB 20105

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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 5.0 — 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

= 20 W, ICQ = 100 mA, f = 960 MHz) G

out

= 20 W, ICQ = 100 mA, f = 960 MHz) η

out

= 20 W, ICQ = 100 mA, Ψ — — 30:1 —

out

pe

C

910—dB

50 — — %

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

(V

= 25 Vdc, P

CC

= 20 W, ICQ = 100 mA)

out

Z Source Z Load

Frequency Z Source Z Load

MHz R jX R jX

925 3.1 -1.8 3.1 1.4
942 3.0 -1.5 2.9 1.4
960 2.9 -1.2 2.7 1.4

2