Ericsson PTB20156 Datasheet

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Description

PTB 20156

8 Watts, 1350–1850 MHz

Microwave Power Transistor

The 20156 is an NPN, common base RF power transistor intended
for 22 Vdc operation from 1350 to 1850 MHz. Rated at 8 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 & Return Loss vs. Frequency

10

Gain (dB)

(as measured in a broadband circuit)

8

Gain ( dB)

6

4

2

0

1.3 1.4 1.5 1.6 1.7 1.8 1.9

Frequency (GHz)

VCC = 22 V
Pin = 2.0 W

Return Loss (dB)

0

-3

-6

-9

-12

-15

Return Loss (dB)

 Specified 22 Volts
 Class C Characteristics
 Output Power: 8 Watts
 Gain: 6.0 dB Min. at 8 Watts
 Gold Metallization
 Silicon Nitride Passivated

20156

LOT CODE

Package 20209

Maximum Ratings

Parameter Symbol Value Unit

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

Above 25°C derate by 0.29 W/°C
Storage Temperature Range T

Thermal Resistance (T

9/28/98

flange

= 25°C P

flange

= 70°C) R

1

CBO
EBO

C

D

STG

θJC

50 Vdc

4.0 Vdc

2.0 Adc
52 Watts

–40 to +150 °C

3.4 °C/W

PTB 20156

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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 = 1 A h

BR)CES
BR)EBO

FE

50 — — Volts

3.5 5 — Volts
— — 100 —

RF Specifications (100% Tested)

Characteristic Symbol Min Typ Max Units

Gain

(V

Collector Efficiency

(V

Load Mismatch Tolerance

(V
—all phase angles at frequency of test)

= 22 Vdc, P

CC

= 22 Vdc, P

CC

= 22 Vdc, P

CC

= 8 W, f = 1850 MHz) G

out

= 8 W, f = 1850 MHz) η

out

= 8 W, f = 1850 MHz Ψ — — 5:1 —

out

pe

C

6.0 — — dB

40 50 — %

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

(V

= 22 Vdc, P

CC

= 20 W)

out

Z Source Z Load

Frequency Z Source Z Load

MHz R jX R jX

1350 13.8 -14.0 4.2 0.0
1500 11.2 -12.8 5.6 0.5
1700 10.7 -8.4 6.0 -1.5
1850 20.0 -9.3 4.2 -2.1

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