fm broadcast applications rf & microwave transistors .500 4lfl (m174) epoxy sealed . 108 mhz . 28 volts . efficiency 75% . common emitter . gold metallization . p out = 150 w min. with 9.2 db gain description the sd1143 is a 28 v gold metallized epitaxial silicon npn planar transistor designed for vhf fm broadcast transmitters. this device utilizes dif- fused emitter resistors to achieve infinite vswr at rated operating conditions. pin connection branding SD1460 order code SD1460 absolute maximum ratings (t case = 25 c) symbol parameter value unit v cbo collector-base voltage 60 v v ceo collector-emitter voltage 25 v v ces collector-emitter voltage 60 v v ebo emitter-base voltage 4.0 v i c device current 16 a p diss power dissipation 230 w t j junction temperature +200 c t stg storage temperature - 65 to +150 c r th(j-c) junction-case thermal resistance 0.75 c/w SD1460 1. collector 3. base 2. emitter 4. emitter thermal data november 1992 1/5
electrical specifications (t case = 25 c) symbol test conditions value unit min. typ. max. p out f = 108 mhz p in = 18 w v ce = 28 v 150 w g p f = 108 mhz p in = 18 w v ce = 28 v 9.2 db h cf = 108 mhz p in = 18 w v ce = 28 v 70 % c ob f = 1 mhz v cb = 28 v 150 pf static symbol test conditions value unit min. typ. max. bv cbo i c = 100ma i e = 0ma 60 v bv cer i c = 100ma r be = 10 w 55 v bv ceo i c = 100ma i b = 0ma 25 v bv ebo i e = 20ma i c = 0ma 4.0 v h fe v ce = 5v i c = 1a 20 150 dynamic typical performance power output vs power input safe operating area SD1460 2/5
impedance data typical input impedance typical collector load impedance SD1460 3/5
c1, c2, c3, c9 : 24 - 200pf variable, arco 425 c4 : 470pf atc 125 mil. sq. chip c5 : 470pf unelco, 400 mil. sq. c6 : 1000pf unelco, 400 mil sq. c7 : 50 - 380pf variable, arco 465 c8 : 25 - 280pf variable, arco 464 c10 : .1 m f 50v, erie disc c11 : .01 m f 50v, erie disc c12 : 1000pf unelco, 400 mil sq. c13 : 100 m f 35v, sprague electrolytic l1 : 3 turns, #16 awg, .225" i.d. l2 : #14 awg, length .335", height .400" l5 : 5 1/2 turns, #16 awg enameled .270" i.d. l6 : #14 awg, length .300", height .335" l7 : 3 turns, #16 awg, length .300", height .335" rfc 1 : vk200 19/4b (1 winding) ferroxcube choke rfc 2 : 6 turns, #16 awg enamel on t50-2 torroid board material: 3-m-k-6098 1/16" thick test circuit SD1460 4/5
package mechanical data ref.: dwg. no.12-0174 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. specification s mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously s upplied. sgs-thomson microelectronics products are not authorized for use as critical components in life support devices or systems with out 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 SD1460 5/5
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