Ericsson PTB20077 Datasheet

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Description

PTB 20077

0.7 Watts, 1525–1660 MHz

INMARSAT RF Power Transistor

The 20077 is a class A, NPN, common emitter RF power transistor
intended for 26 Vdc operation from 1525 to 1660 MHz. Rated at 0.7
watt 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

1.2

1.0

0.8

0.6

0.4

0.2

Output Power (Watts)

0.0

0.00 0.02 0.04 0.06 0.08 0.10

Input Power (Watts)

VCC = 26 V
I

= 120 mA

CQ

f = 1.66 GHz

• 0.7 Watt, 1525–1660 MHz

• Class A Characteristics

• Gold Metallization

• Silicon Nitride Passivated

• Surface Mountable

• Available in Tape and Reel

20077

LOT CODE

Package 20227

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 0.031 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

60 Vdc
60 Vdc

4.0 Vdc

0.5 Adc

5.4 Watts

–40 to +150 °C

32.3 °C/W

PTB 20077

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)

4

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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 C to E IB = 0 A, IC = 10 mA, RBE = 22 Ω V(
Breakdown Voltage E to B IC = 0 A, IE = 5 mA V(
DC Current Gain VCE = 5 V, IC = 250 mA h

BR)CES
BR)CER
BR)EBO

FE

60 — — Volts
60 — — Volts

4.0 5 — Volts
20 40 — —

RF Specifications (100% Tested)

Characteristic Symbol Min Typ Max Units

Gain

(V
f = 1.525; 1.66 GHz)

Power Output at 1 dB Compression

(V
f = 1.525; 1.66 GHz)

Load Mismatch Tolerance

(V
f = 1.66 GHz—all phase angles at frequency of test)

= 25 Vdc, P

CC

= 25 Vdc, ICQ = 120 mA, P-1dB 0.7 0.9 — Watts

CC

= 25 Vdc, P

CC

= 0.2 W, ICQ = 120 mA, G

out

= 0.7 W, ICQ = 120 mA, Ψ — — 5:1 —

out

pe

10 12 — dB

Typical Performance

Typical P

14
12
10

8

VCC = 26 V

6

I

4

Outp ut Power (W)

2
0

1300 1350 1400 1450 1500 1550 1600 1650 1700

Gain (dB) & Output Power (Watt

, Gain & Efficiency

OUT

vs. Frequenc

Gain (dB)

= 120 mA

CQ

Frequency (MHz)

(at P-1dB)

Efficiency (%)

40
35
30
25
20
15

Efficiency (%)

10
5

Inter modulation Distortion vs. Output Pow er

-10

VCC = 26 V

-20

I

= 120 mA

CQ

f

= 1559.9 MHz

1

-30

f

= 1666.0 MHz

2

-40

IMD (dBc)

-50

-60

-70

IM3

IM5

IM7

0.0 0.2 0.4 0.6 0.8 1.0

Output Power (Watts-PEP)

2

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