MRF644 NPN SILICON RF POWER TRANSISTOR DESCRIPTION: The ASI MRF644 is a gold metallized RF power transistor designed for 12.5 V Class-C applications in 450-513 MHz frequency range. PACKAGE STYLE .500 6L FLG A C FEATURES: E • Internal Input Matching Network • PG = 6.5 dB at 25 W/470 MHz • Omnigold™ Metalization System • Common Emitter, Class-C , 12.5 V C 2x Ø N FULL R D B B E E .725/18,42 F G M K H MAXIMUM RATINGS 4.8 A IC VCBO VCEO VCES L M AXIM UM DIM M INIM UM inches / m m inches / m m A .150 / 3.43 .160 / 4.06 36 V B C .210 / 5.33 .220 / 5.59 16 V D .835 / 21.21 .865 / 21.97 36 V .045 / 1.14 E .200 / 5.08 .210 / 5.33 F .490 / 12.45 .510 / 12.95 G .003 / 0.08 4.0 V .007 / 0.18 .125 / 3.18 H VEBO J I .725 / 18.42 I J .970 / 24.64 .980 / 24.89 PDISS 70 W @ TC = 25 °C K .090 / 2.29 .105 / 2.67 L .150 / 3.81 .170 / 4.32 TJ -65 °C to +200 °C M TSTG -65 °C to +150 °C θJC 2.5 °C/W CHARACTERISTICS SYMBOL .285 / 7.24 .120 / 3.05 N .135 / 3.43 TC = 25°C NONETEST CONDITIONS MINIMUM TYPICAL MAXIMUM UNITS BVCEO IC = 50 mA 16 V BVCES IC = 10 mA 36 V BVEBO IE = 5.0 mA 4.0 V ICES VCE = 12.5 V hFE VCE = 5.0 V COB VCB = 12.5 V PG ηC VCC = 12.5 V IC = 1.0 A 10 f = 1.0 MHz POUT = 25 W f = 470 MHz 6.5 60 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) 982-1200 • FAX (818) 765-3004 Specifications are subject to change without notice. 5 mA 150 --- 80 pF dB % REV. A 1/1