Ericsson PTB20239 Datasheet
Description
PTB 20239
12 Watts, 1465–1513 MHz
Cellular Radio RF Power Transistor
The PTB 20239 is a class AB, NPN, common emitter RF power
transistor intended for 26 Vdc operation from 1465 to 1513 MHz.
Rated at 12 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 Pow er
20
16
12
8
4
Output Power (Watts)
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Input Power (Watts)
VCC = 26 V
I
= 25 mA
CQ
f = 1513 MHz
12 Watts, 26 Vdc
Class AB Characteristics
Surface Mountable
Available in Tape and Reel
Gold Metallization
Silicon Nitride Passivated
20239
LOT CODE
Package 20232
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 0.189 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
50 Vdc
50 Vdc
4 Vdc
2.0 Adc
33 Watts
–40 to +150 °C
5.3 °C/W
PTB 20239
4
Electrical Characteristics (100% Tested)
Characteristic Conditions Symbol Min Typ Max Units
Breakdown Voltage C to E IB = 0 A, IC = 5 mA, RBE = 22 Ω V
Breakdown Voltage C to E VBE = 0 V, IC = 5 mA V
Breakdown Voltage E to B IC = 0 A, IE = 5 mA V
(BR)CER
(BR)CES
(BR)EBO
DC Current Gain VCE = 5 V, IC = 250 mA h
FE
50 — — Volts
50 — — Volts
4 5 — Volts
20 — — —
RF Specifications (100% Tested)
Characteristic Symbol Min Typ Max Units
Gain
(V
Power Output at 1 dB Compression
(V
Collector Efficiency
(V
Load Mismatch Tolerance
(V
f = 1513 MHz—all phase angles at frequency of test)
= 26 Vdc, P
CC
= 26 Vdc, ICQ = 25 mA, f = 1513 MHz) P-1dB 12 13 — Watts
CC
= 26 Vdc, P
CC
= 26 Vdc, P
CC
= 10 W, ICQ = 25 mA, f = 1513 MHz) G
OUT
= 12 W, ICQ = 25 mA, f = 1513 MHz) η
OUT
= 12 W, ICQ = 25 mA, Ψ — — 5:1 —
OUT
pe
C
8——dB
40 — — %
Typical Performance
Gain vs. Frequency
(as measured in a broadband circuit)
11
10
9
8
Gain (dB)
7
6
1465 1475 1485 1495 1505 1515
Frequency (MHz)
VCC = 26 V
I
= 25 mA
CQ
P
= 12 W
OUT
Efficiency vs. Output Power
80
70
60
50
40
30
Efficiency (%)
20
10
0
2 4 6 8 10 12 14
Output Power (Watts)
VCC = 26 V
I
= 25 mA
CQ
f = 1513 MHz
2
/30/98
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