1.6 ghz satcom applications rf & microwave transistors .250 x .320 2lfl (m170) epoxy sealed . 1.65 ghz . 28 volts . overlay die geometry . all gold metallized system . high reliability and ruggedness . coomon base . p out = 15 w min. with 9.2 db gain description the SD1895-03 is a 28 v silicon npn planar tran- sistor designed for inmarsat and other 1.6 ghz satcom applications. this device utilizes poly- silicon site ballasting with a gold metallized die to achieve high reliability and ruggedness. pin connection branding sd1895-3 order code SD1895-03 absolute maximum ratings (t case = 25 c) symbol parameter value unit v cbo collector-base voltage 45 v v ceo collector-emitter voltage 15 v v ebo emitter-base voltage 3.0 v i c device current 3.0 a p diss power dissipation 37.2 w t j junction temperature +200 c t stg storage temperature - 65 to +150 c r th(j-c) junction-case thermal resistance 4.7 c/w SD1895-03 1. collector 3. base 2. emitter thermal data july 1993 1/4 .com .com .com .com 4 .com u datasheet
electrical specifications (t case = 25 c) symbol test conditions value unit min. typ. max. p out f = 1.65 ghz p in = 2.4 w v ce = 28 v 20 e e w g p f = 1.65 ghz p in = 2.4 w v ce = 28 v 9.2 e e db h cf = 1.65 ghz p in = 2.4 w v ce = 28 v 48 e e % static symbol test conditions value unit min. typ. max. bv cbo i c = 5ma i e = 0ma 45 e e v bv ceo i c = 5ma i b = 0ma 12 e e v bv ebo i e = 5ma i c = 0 ma 3.0 e e v h fe v ce = 5v i c = 1a 15 e 150 e dynamic typical performance power output vs power input impedance data freq. z in ( w )z cl ( w ) 1.65 ghz 17.0 + j 18.0 3.5 - j2.0 SD1895-03 2/4 .com .com .com .com .com 4 .com u datasheet
test circuit c1, c2 : 0.4 - 2.5pf #27283 johanson trimmer c3 : 100pf atc 100a101kca150 chip capacitor c4 : 15,000pf emi filter murata/erie #9900-381-6004 l1, l2 : 4 turns, #28 awg. .080o i.d. SD1895-03 3/4 .com .com .com .com .com 4 .com u datasheet
package mechanical data ref.: dwg. no.12-0170 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 SD1895-03 4/4 .com .com .com .com 4 .com u datasheet
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