SD1446

SD1446 RF & MICROWAVE TRANSISTORS H F/VHF APPLICATIONS . . . . . . 50 MHz 12.5 VOLTS EFFICIENCY 55% COMMON EMITTER GOLD METALLIZATION P OUT = 70 W MIN. WITH 10 dB GAIN .380 4LFL (M113) epoxy sealed ORDER CODE SD1446 BRANDING SD1446 PIN CONNECTION DESCRIPTION The SD1446 is a 12.5 V Class C epitaxial silicon NPN planar transistor designed primarily for land mobile transmitter applications. This device utilizes emitter ballasting and is extremely stable and capable of withstanding high VSWR under operating conditions. ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C) Symbol Parameter Value Unit 1. Collector 2. Emitter 3. Base 4. Emitter VCBO VCEO VEBO IC PDISS TJ T STG Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Device Current Power Dissipation Junction Temperature Storage Temperature 36 18 3.5 12.0 183 +200 − 65 to +150 V V V A W °C °C THERMAL DATA RTH(j-c) Junction-Case Thermal Resistance November 1992 1.05 °C/W 1/5 SD1446 E LECTRICAL SPECIFICATIONS (T case = 25 ° C) STATIC Symbol Test Conditions Value Min. Typ. Max. Unit BVCBO BVCES BVCEO BVEBO ICES hFE IC = 50mA IC = 100mA IC = 50mA IE = 10mA VCE = 15V VCE = 5V IE = 0mA VBE = 0V IB = 0mA IC = 0mA IE = 0mA IC = 5A 36 36 18 3.5 — 10 — — — — — — — — — — 10 — V V V V mA — DYNAMIC Symbol Test Conditions Value Min. Typ. Max. Unit POUT GP ηc COB f = 50 MHz f = 50 MHz f = 50 MHz f = 1 MHz PIN = 7 W PIN = 7 W PIN = 7 W VCB = 12.5V VCE = 12.5 V VCE = 12.5 V VCE = 12.5 V 70 10 — — — — 55 — — — — 300 W dB % pF TYPICAL PERFORMANCE POWER OUTPUT vs POWER INPUT 2/5 SD1446 IMPEDANCE DATA TYPICAL INPUT IMPEDANCE FREQ. 50 MHz POUT = 70W VCE = 12.5V ZIN (Ω) 0.8 + j 0.9 Z CL (Ω) 1.2 + j 0.6 TYPICAL COLLECTOR LOAD IMPEDANCE 3/5 SD1446 T EST CIRCUIT C1, C4 C2 C3 C5 C6 C7 C8 L1 : : : : : : : 50 - 380pF Arco 465 110 - 580pF Arco 467 140 - 680pF Arco 468 9 - 180pF Arco 463 10µF, 35Vdc, Electrolytic .01µF Erie 1000pF Unelco L2 L3 L4 L5 : 10 Turns, #28 AWG, Enameled on Ferroxcube Sleeve #3B : 1 1/2 Turns, #12 AWG, Tinned, 3/8” I.D. Loose Wound : 8 Turns, #18 AWG on 1/4” I.D. Coil form 1/2” Length with Ferrite Slug : 11 Turns, #16 AWG, Enameled on Torroid, Micrometals, T50-2 : 2 1/2 Turns, #14 Awg, Tinned, 1/4” I.D. Loose Wound Board Material: Double Sided Copper 1/16” Thick 4/5 SD1446 P ACKAGE MECHANICAL DATA Ref.: Dwg. No.12-0113 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics. © 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A 5/5