1995. 1. 23 1/4 semiconductor technical data KTC2078 triple diffused npn transistor revision no : 0 cb transceiver tx final amplifier application. hf transceiver application. features recommended for output stage application of am 4w transmitter. high power gain. wide area of safe operation. maximum rating (ta=25 1 ) dim millimeters 1. base 2. collector (heat sink) 3. emitter to-220ab 10.30 max 15.30 max 0.80 3.60 0.20 3.00 6.70 max 13.60 0.50 5.60 max 0.50 1.50 max 2.54 4.70 max 2.60 a b c d e f g h j k l m n o p a e mm 123 f b g h l c k j o n p d 1.37 max 1.50 max r s q c t q1.50 r 9.50 0.20 s 8.00 0.20 t 2.90 max + _ + _ + _ + _ electrical characteristics (ta=25 1 ) c 1 : 100pf, c 2 ,c 3 : 150pf, c 4 : 300pf, c 5 :1000pf c 6 :0.01 f, r:250 u l 1 :0.8mm uew,7t,8mm i.d l 2 :0.8mm uew,5t,8mm i.d l 3 :0.8mm uew,10t,8mm i.d rfc:0.35mm uew,17t,5mm i.d characteristic symbol rating unit collector-base voltage v cbo 80 v collector-emitter voltage (r be =50 u ) v cer 80 v emitter-base voltage v ebo 4 v collector current i c 4 a emitter current i e -4 a collector power dissipation (tc=25 1 ) p c 10 w junction temperature t j 150 1 storage temperature range t stg -55 150 1 characteristic symbol test condition min. typ. max. unit collector cut-off current i cbo v cb =30v, i e =0 - - 10 a breakdown voltage collector-emitter v (br)cer i c =10ma, r be =50 u 80 - - v emitter-base v (br)ebo i e =1.0ma, i c =0 4 - - v dc current gain h fe v ce =5v, i c =0.5a 100 - 200 collector-emitter saturation voltage v ce(sat) i c =3a, i b =0.3a - - 1.5 v transition frequency f t v ce =5v, i c =500ma 100 - - mhz collector output capacitance c ob v cb =10v, i e =0, f=1mhz - 40 - pf output power (fig.1) p o v cc =12v, p i =0.3w, f=27mhz 4 - w fig. 1 p test circuit c o 1 l r rfc 1 p i c 3 l 3 p o c 4 l 2 c 5 c 6 c 2 r =50 ? l r =50 ? g
1995. 1. 23 2/4 KTC2078 revision no : 0 fig.2 27mhz 4w output am transceiver circuit l : 4mm bobbin with ferrite core, 0.08mm uew, 8 turns 1 l : 4mm bobbin with ferrite core, 0.08mm uew, 2 turns 2 l , l : 6.5mm bobbin with ferrite core, 0.6mm sn plated copper wire 6 turns 36 2 l : 6.5mm bobbin with ferrite core, 0.6mm sn plated copper wire 8 turns 4 2 1 1 l : 0.6mm sn plated copper wire, 6.5mm i.d, 8 turns 5 rfc : 4.7uh, 7ba-480k (toko) 1 rfc : 0.2mm uew, 30 turns 2 resistor : 1/4w carbon capacitor : ceramic 2 1 ktc3191 r =50 ? 68? 22? 1.5k ? (1/2w) 47? ktc1006 KTC2078 100pf 200pf 50pf 30pf 2200pf 13.8v 400pf 300pf 0.022uf 0.022uf 0.01uf 10ma 0.022uf 0.022uf 200pf g r =50 ? l p =4w(cw) o l 1 l 2 l 4 l 5 l 6 rfc 1 rfc 2 v =13.8v & mod cc l 3 * v in v in * v = 150mv in v g r =50 ? 18k ? 2.7k ? 100 ? g r =50 ? l
1995. 1. 23 3/4 KTC2078 revision no : 0 output power p (w) 2 o 0 input power p (w) i i o p - p collector power dissipation 0 0 ambient temperature ta ( c) pc - ta h - i c collector current i (a) 0.01 fe dc current gain h 30 0.2 0.4 0.6 0.8 1.0 1.2 4 6 8 10 12 14 f=27mhz tc=25 c see fig.1 v =14v cc c c v =12v v =10v cc see fig.1 tc=25 c f=27mhz 12 10 8 6 4 2 24 20 16 12 8 4 p - v occ cc supply voltage v (v) 0 o 0 output power p (w) p =0.4w p =0.3 w p =0.2w i i i fe c 0.03 0.1 0.3 1 3 5 50 100 300 500 1k 3k common emitter v =5v tc=25 c ce ce tc=25 c v =5v common emitter 3k 1k 500 300 100 50 5 3 1 0.3 0.1 0.03 c t 30 transition frequency f (mhz) t 0.01 collector current i (a) c f - i e tc =25 c i =0 f=1mhz 300 100 50 30 10 5 500 100 30 10 3 cb ob 3 output capacitance c (pf) ob 1 collector-base voltage v (v) cb c - v 550 pc (w) 25 50 75 100 125 150 175 2 4 6 8 10 12 (1) tc=ta infinite heat sink (2) no heat sink (1) (2)
1995. 1. 23 4/4 KTC2078 revision no : 0 level (db) -80 output power p (w) 0 o 0 input voltage v (mv) in in o p - v -20k center frequency f (khz) c emission limitation (fcc) 100 150 200 250 5 10 15 20 25 f=27mhz tc=25 c see fig.2 v =27.6v cc cc v =25v cc v =18v cc v =13.8v cc v =10v v ,g - v occ cc supply voltage v (v) 0 o 0 output voltage v (v) p 8 162432 8 16 24 32 40 gp v =100m v in 150mv 200mv v o ut in v =150mv 200mv 100mv f=27mhz tc=25 c see fig.2 60 52 44 36 28 20 total gain g (db) p 80% modulation spectrum -10k 0 10k 20k -60 -40 -20 0 modulation specture emission limitation (fcc) f =27mhz f =2.5khz m=0.8 v =150mv tc=25 c see=fig.2 c m in in m c see=fig.2 tc=25 c v =150mv m=0.85 f =2.5khz f =27mhz (fcc) limitation emission specture modulation 0 -20 -40 -60 20k 10k 0 -10k 85% modulation spectrum emission limitation (fcc) c center frequency f (khz) -20k -80 level (db)
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