0182898 ACRIAN INC 4? De Boraessa cooess 4 f 7 43-7 GENERAL DESCRIPTION The B25-28 is specifically designed for VHF broadbana linear power amplifier applications in the 100-200 MHz range. The device is capable of operating in Class A, AB or C amplifiers and provides the maximum power output/power gain combination. ABSOLUTE MAXIMUM RATINGS Maximum Power Dissipation @ 25C Case Temperature 50W Maximum Voltage and Current BVces Collector to Emitter Voltage 60V BVebo Emitter to Base Voltage 4.0V k Collector Current 5.0A Maximum Temperatures Storage Temperature 65 to +150 C Operating JunctionTemperature +200 Li: POWER OUTPUT VS POWER INPUT iB (TYPICAL) 40 f= 175 MHz a 1" |_| 25.40 {.25 {1.000 | .010 24 J 145 eo] 450] 5 yy K 16 7 19.00 REF [748 REF PICAL: AMPLIFIER LINE-UP: #28. Volts POWER OUTPUT (WATTS) 4 8 0 1 2 3 4 5 POWER INPUT (WATTS) 490 Race Street, San Jose, CA 95126 Phone (408) 294-4200, TWX (910) 338-2172 LREV AAUG 1987 Ewenny Rd., Bridgend, Mid Glamorgan, CF31 3LQ, United Kingdom, Phone (0656) 68021 Printed in USA 237 f0182998 ACRIAN INC 92 pe Mo1se998 goouesh & i dD 6-1 -.32- ELECTRICAL CHARACTERISTICS! SYMBOL] CHARACTERISTICS TEST CONDITIONS MIN. TYP. MAX. UNITS Pout Power Output 25 Watts Pin Power Input fe 175 Miz 3.5 | Watts Pg Power Gain Voom 28V 10 dB le Collector Efficiency 60 % VSWR Load Mismatch Tolerance 0074 BVebo Breakdown Voltage Icx OA, lex SMA 4.0 Volts (Emitter to Base) BVces Breakdown Voltage - (Collector to Emitter) Vbe~ 0A, Ion 5mA 60 Volts BVceo Breakdown Voltage (Collector to Emitter) Ibe OA, Io= 100mA 35 Volts Capacitance- Cob Collector to Base Veb= 28V, f= 1MHz 50 pF Nee DC-Current Gain Ve= SV low 1A 10 8jc Thermal Resistance 4.4 | cw Note 1; Te = +25C unless otherwise specified POWER GAIN (dB) oe POWER GAIN VS FREQUENCY COLLECTOR CURRENT (AMPS) -(TYPICAL) 1 ~ 12 ~ 9 Po=s25W 6 Voc = 28 Volts 3 0 100 120 140 160 180 200 FREQUENCY (MHz) DC SAFE OPERATING AREA (TYPICAL) hy 8 16 24 32 40 Vce (VOLTS) SPECIFICATIONS MAY BE SUBJECT TO CHANGE WITHOUT NOTICE