Ericsson PTB20171 Datasheet
e
Description
PTB 20171
25 Watts, 935–960 MHz
Cellular Radio RF Power Transistor
The 20171 is a class AB, NPN, common emitter RF power transistor
intended for 24 Vdc operation from 935 to 960 MHz. Rated at 25
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 Output Pow er vs. Input Pow er
40
30
20
VCC = 24 V
I
10
Output Power (Watts)
0
012345
Input Power (Wa tts)
= 150 mA
CQ
f = 960 MHz
25 Watts, 935–960 MHz
Class AB Characteristics
Gold Metallization
Silicon Nitride Passivated
20171
LOT CODE
Package 20200
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 0.833 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
4.0 Vdc
5.0 Adc
145 Watts
–40 to +150 °C
1.2 °C/W
PTB 20171
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Electrical Characteristics (100% Tested)
Characteristic Conditions Symbol Min Typ Max Units
Breakdown Voltage C to E IB = 0 A, IC = 10 mA, RBE = 22 Ω V
Breakdown Voltage C to E VBE = 0 V, IC = 10 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)CER
(BR)CES
(BR)EBO
FE
50 50 — Volts
55 60 — Volts
4 5 — Volts
20 40 — —
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)
= 24 Vdc, P
CC
= 24 Vdc, P
CC
= 24 Vdc, P
CC
= 25 W, ICQ = 150 mA, f = 960 MHz) G
out
= 25 W, ICQ = 150 mA, f = 960 MHz) η
out
= 25 W, ICQ = 150 mA, Ψ — — 10:1 —
out
pe
C
— 10.0 — dB
—55—%
Impedance Data (data shown for fixed-tuned broadband circuit)
(V
= 24 Vdc, P
CC
= 25 W, ICQ = 150 mA)
out
Frequency Z Source Z Load
Ericsson Components
RF Power Products
675 Jarvis Drive
Morgan Hill, CA 95037 USA
Telephone: 408-778-9434
Z Source Z Load
MHz R jX R jX
935 4.25 -10.09 11.92 -8.34
947 4.11 -9.81 11.66 -8.47
960 3.97 -9.66 11.34 -8.83
1-877-GOLDMOS
(1-877-465-3667)
e-mail: rfpower@ericsson.com
www.ericsson.com/rfpower
2
Specifications subject to change without notice.
LF
© 1997 Ericsson Inc.
EUS/KR 1301-PTB 20171 Uen Rev. B 09-28-98
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