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Ericsson

PTB20078 Datasheet Preview

PTB20078 Datasheet

2.5 Watts/ 1525-1660 MHz INMARSAT RF Power Transistor

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PTB 20078
2.5 Watts, 1525–1660 MHz
INMARSAT RF Power Transistor
Description
The 20078 is a class AB, NPN, common emitter RF power transistor
intended for 26 Vdc operation from 1525 to 1660 MHz. Rated at 2.5
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.
• 2.5 Watts, 1525–1660 MHz
• Class AB Characteristics
• Gold Metallization
• Silicon Nitride Passivated
• Surface Mountable
• Available in Tape and Reel
Typical Output Power vs. Input Power
4.5
4.0
3.5
3.0
2.5
2.0
1.5 VCC = 26 V
1.0 ICQ = 20 mA
0.5 f = 1.66 GHz
0.0
0.0
0.1 0.2 0.3 0.4
Input Power (Watts)
0.5
0.6
Maximum Ratings
Parameter
Collector-Emitter Voltage
Collector-Base Voltage
Emitter-Base Voltage (collector open)
Collector Current (continuous)
Total Device Dissipation at Tflange = 25°C
Above 25°C derate by
Storage Temperature
Thermal Resistance (Tflange = 70°C)
20078LOT CODE
Package 20227
Symbol
VCER
VCBO
VEBO
IC
PD
Tstg
RθJC
Value
50
50
4.0
0.5
10.0
0.057
150
17.5
Unit
Vdc
Vdc
Vdc
Adc
Watts
W/°C
°C
°C/W
9/28/98
1




Ericsson

PTB20078 Datasheet Preview

PTB20078 Datasheet

2.5 Watts/ 1525-1660 MHz INMARSAT RF Power Transistor

No Preview Available !

PTB 20078
Electrical Characteristics (100% Tested)
Characteristic
Breakdown Voltage C to E
Breakdown Voltage C to E
Breakdown Voltage E to B
DC Current Gain
Conditions
VBE = 0 V, IC = 5 mA
IB = 0 A, IC = 10 mA, RBE = 22
IC = 0 A, IE = 5 mA
VCE = 5 V, IC = 250 mA
Symbol
V(BR)CES
V(BR)CER
V(BR)EBO
hFE
Min
50
50
4
20
RF Specifications (100% Tested)
Characteristic
Gain
(VCC = 26 Vdc, Pout = 1.0 W, ICQ = 20 mA,
f = 1.525; 1.66 GHz)
Power Out at 1 dB Compression
(VCC = 26 Vdc, ICQ = 20 mA,
f = 1.525; 1.66 GHz)
Load Mismatch Tolerance
(VCC = 26 Vdc, Pout = 2.5 W, ICQ = 20 mA
f = 1.660 GHz—all phase angles at frequency of test)
Symbol Min
Gpe 9
P-1dB
2.5
Ψ
Impedance Data (data shown for fixed-tuned broadband circuit)
(VCC = 26 Vdc, Pout = 2.5 W, ICQ = 20 mA)
Z Source
Z Load
e
Typ
5
40
Max
Units
Volts
Volts
Volts
Typ Max Units
11.0 —
dB
3.5 — Watts
— 5:1
Frequency
GHz
1.525
1.593
1.660
Z Source
R jX
16.9
0.5
13.7
2.3
11.3 4.6
Z Load
R jX
12.9
23.8
12.9
25.9
12.9
27.7
Z0 = 50
2


Part Number PTB20078
Description 2.5 Watts/ 1525-1660 MHz INMARSAT RF Power Transistor
Maker Ericsson
PDF Download

PTB20078 Datasheet PDF






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