The UMIL 25 is an input matched COMMON EMITTER broadband transistor specifically intended for use in the 225-400 MHz frequency band. It may be operated ...
UMIL 25 25 Watts, 28 Volts, Class AB Defcom 225 - 400 MHz
CASE OUTLINE
GENERAL DESCRIPTION
55HV, Style 2
The UMIL 25 is an input matched COMMON EMITTER broadband transistor specifically intended for use in the 225-400 MHz frequency band. It may be operated in Class AB or C. Gold metallization and silicon diffused resistors ensure ruggedness and high reliability.
ABSOLUTE MAXIMUM RATINGS Maximum Power Dissipation @ 25oC
70 Watts
Maximum Voltage and Current BVces Collector to Emitter Voltage BVebo Emitter to Base Voltage Ic Collector Current Maximum Temperatures Storage Temperature Operating Junction Temperature
60 Volts 4.0 Volts 3A - 65 to +150 oC +200 oC
ELECTRICAL CHARACTERISTICS @ 25 OC SYMBOL
CHARACTERISTICS
TEST CONDITIONS
Pout Pin Pg ηc VSWR
Power Output Power Input Power Gain Efficiency Load Mismatch Tolerance
F = 400 MHz Vcc = 28 Volts
BVebo BVces BVceo Cob hFE θjc
Emitter to Base Breakdown Collector to Emitter Breakdown Collector to Emitter Breakdown Output Capacitance DC - Current Gain Thermal Resistance
MIN
TYP
MAX
25 3.2 8.9
10 50
UNITS Watts Watts dB %
5:1
Ie = 5 mA Ic = 50 mA Ie = 50 mA Vcb = 28 V, F = 1 MHz Vce = 5 V, Ic = 500 A
4.0 65 33 22
27
Volts Volts Volts pF
10 2.5
o
C/W
Issue August 1996
GHz TECHNOLOGY INC. RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE. GHz RECOMMENDS THAT BEFORE THE PRODUCT(S) DESCRIBED HEREIN ARE WRITTEN INTO SPECIFICATIONS, OR USED IN CRITICAL APPLICATIONS, THAT THE PERFORMANCE CHARACTERISTICS BE VERIFIED BY CONTACTING THE FACTORY.
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Removal of this label before first retail purchase is an offence (S.C. 1992, c. 36). Enlever cette étiquette avant le premier achat au détail constitue une infraction ...
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â¢Cost range based only on standard capacity models. â¢Estimated energy cost based on four wash loads a week and a national average electricity cost of 12 ...
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