UHF RF POWER TRANSISTORS
400-512MHz ● 12.5 VOLTS
50W
CM50-12A
GENERAL DESCRIPTION - This device is capable of providing 5OW of RF power
across the entire 400-512MHz band at a Vcc of 12.5V.
FEATURES
- SUPERIOR POWER PERFORMANCE FROM A 12.5 VOLT SUPPLY.
- MAXIMUM RELIABILITY DUE TO SINGLE CHIP CONSTRUCTION.
- GREATER HIGH FREQUENCY PERFORMANCE IN LOW INDUCTANCE CERAMIC STRIPLINE PACKAGES.
- SPECIFICALLY DESIGNED FOR 12.5 VOLT OPERATION COVERING THE FREQUENCY BAND OF 400-512 MHz.
- THE ABILITY TO WITHST AND INFINITE VSWR AT ALL PHASE ANGLES WHEN OPERATED AT RATED POWER AND SUPPLY VOLTAGE OF 15.5 VOLTS.
- MAXIMUM BANDWIDTH DUE TO LOW Q INTPUT MATCHING.
| ABSOLTE MAXIMUM RATEING |
| Maximum Temperatures |
| Storage Temperature |
-65℃to+200℃ |
| Operating Junction Temperature |
200℃ |
Lead Temperature(Soldering, 8seconds time limit)
>_1/32" from ceramic |
260℃ |
Maximum Power Dissipation(Note 1) |
| Total Power Dissipation at 25℃ Case Tamperature |
145W |
Maximum Voltage and Current |
| BVCES |
Collector to Emitter Voltage |
36V |
| LVCES |
Collector to Emitter Voltage |
16V |
| BVEBO |
Emitter to Base Voltage |
4.0V |
| IC |
Collector Curent |
12.5A |
ELECTRICAL CHARACTERISTIC(25℃ unless otherwise specified)
| SYMBOL |
CHARATERISTIC |
MIN. |
TYP |
MAX. |
UNITS |
TEST CONDITIONS |
| POUT |
Power Output(Note 2) |
50.0 |
|
|
WATT |
f=470MHz,Vcc=12.5V |
| PIN |
Power Input(Note 2)
(At rated Power Out) |
|
|
12.5 |
WATT |
f=470MHz,Vcc=12.5V |
| n |
Collector Efficiency
(At rated Power Out) |
|
60 |
|
% |
f=470MHz,Vcc=12.5V |
| ZIN |
Series Input Impedance |
|
0.75+j3.1 |
|
OHMS |
At rated output power and frequency |
| ZL |
Series Load Impedance |
|
0.8-j2.7 |
|
OHMS |
At rated output power and frequency |
| CCB |
Collector to Base
Capacitance(F=1.0MHz) |
|
125 |
|
pF |
VCB=12.5V,IE=0 |
| LVCEO |
Collector to Emitter Voltage |
16 |
|
|
VOLTS |
IC=50mA,IB=0 |
| BVEBO |
Emiter to Base Voltage |
4.0 |
|
|
VOLTS |
IC=0,IE=5mA |
| BVCBS |
Collector to Emitter |
36 |
|
|
VOLTS |
IC=25mA |
NOTES:
- This rating give a maximum junction temperature of 200℃ with junction to case themal resistance og 1.2℃/watt.
- Values measured in 470 MHz test amplifier.(Fig.1)
CM50-12A TEST CIRCUIT
FIGURE 1
| L1 |
Microstripline,Z0=50Ω,L=1.5" |
| L2 |
Microstripline,Z0=50Ω,L=.6" |
| L3 |
Microstripline,Z0=50Ω,L=.3" |
| L4 |
Microstripline,Z0=50Ω,L=1.65" |
| C1,C10 |
220pF chip capacitor |
| C2,C9 |
2-20pF piston trimmer |
| C3,C8 |
15pF uncased mica |
| C4,C5,C6,C7 |
35pF uncased mica |
| C11 |
200pF uncased mica |
| C12 |
0.1μfd disc ceramic |
| C13 |
1μfd @ 35Vdc |
| RFC1 |
4turns #16 wire,1/4" dia.,3/4" long |
| RFC2 |
4turns #18 wire on 1/2" "H" TOROID |
| RFC3 |
4turns #14 wire,1/4" dia.,1" long |
| RFC4 |
4turns #16 wire on 1" "H" TOROID |
| R1 |
15Ω 1/2watt |
| R2 |
15Ω 1watt |
COMMUNICATIONS TRANSISTOR COFIPORATlON
30l Industrial Way,San Carlos,California 94070
A Subsidiary of Varian Associates
(415) 592-9390 TWX 910-376-4893
＜追加情報＞
過去に買っていただいた方々に教えていただいた情報とネット上の情報を照らし合わせた情報によると、下記の代替品として使用できるようです。
ただし、当方で保証するものではありませんので、データシートご覧の上ご判断下さい。
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