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2N4428 Dataheets PDF



Part Number 2N4428
Manufacturers Advanced Semiconductor
Logo Advanced Semiconductor
Description NPN SILICON HIGH FREQUENCY TRANSISTOR
Datasheet 2N4428 Datasheet2N4428 Datasheet (PDF)

2N4428 NPN SILICON HIGH FREQUENCY TRANSISTOR PACKAGE STYLE TO-39 DESCRIPTION: The 2N4428 is a High Frequency Transistor Designed for Amplifier and Oscillator Applications. MAXIMUM RATINGS IC VCE PDISS TJ TSTG θJC O O 425 mA 30 V 3.5 W @ TC = 25 C -65 C to +200 C -65 C to +200 C 50 C/W O O O O 1 = EMITTER 2 = BASE 3 = COLLECTOR NONE CHARACTERISTICS SYMBOL BVCEO BVCER BVEBO ICEX hFE ft COB Pin η IC = 20 mA IC = 20 mA TC = 25 C O TEST CONDITIONS RBE = 10 Ω VBE = -1.5 V IC = 50 mA IC = 40.

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2N4428 NPN SILICON HIGH FREQUENCY TRANSISTOR PACKAGE STYLE TO-39 DESCRIPTION: The 2N4428 is a High Frequency Transistor Designed for Amplifier and Oscillator Applications. MAXIMUM RATINGS IC VCE PDISS TJ TSTG θJC O O 425 mA 30 V 3.5 W @ TC = 25 C -65 C to +200 C -65 C to +200 C 50 C/W O O O O 1 = EMITTER 2 = BASE 3 = COLLECTOR NONE CHARACTERISTICS SYMBOL BVCEO BVCER BVEBO ICEX hFE ft COB Pin η IC = 20 mA IC = 20 mA TC = 25 C O TEST CONDITIONS RBE = 10 Ω VBE = -1.5 V IC = 50 mA IC = 400 mA IC = 50 mA f = 200 MHz f = 1.0 MHz Rs = 50 Ω f = 200 MHz MINIMUM 35 55 3.5 TYPICAL MAXIMUM UNITS V V V IC = 100 µA VCE = 55 V VCE = 5.0 V VCE = 20 V VCB = 28 V VCC = 28 V Pout = 750 mW 1.0 20 5.0 700 1000 1.5 3.5 75 35 200 mA --MHz pF mW % A D V A N C E D S E M I C O N D U C T O R, I N C. 7525 ETHEL AVENUE • NORTH HOLLYWOOD, CA 91605 • (818) 982-1202 • FAX (818) 765-3004 Specifications are subject to change without notice. REV. A 1/1 .


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