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| ST 2SC2787 NPN Silicon Epitaxial Planar Transistor for FM RF amp, mixer, osc, converter and IF amplifier. The transistor is subdivided into three groups M, L, and K according to its DC current gain. On special request, these transistors can be manufactured in different pin configurations. Features 1) Small output capacitance 2) Low noise figure TO-92 Plastic Package Weight approx. 0.19g Absolute Maximum Ratings (Ta = 25) Symbol Collector Base Voltage Collector Emitter Voltage Emitter Base Voltage Collector Current Power Dissipation Junction Temperature Storage Temperature Range VCBO VCEO VEBO IC Ptot Tj TS Value 50 30 5 30 250 150 -55 to +150 Unit V V V mA mW O O C C SEMTECH ELECTRONICS LTD. (R) (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 23/05/2002 ST 2SC2787 Characteristics at Tamb=25 OC Symbol DC Current Gain* at VCE=6V, IC=1mA Current Gain Group M L K Collector Cutoff Current at VCB=50V Emitter Cutoff Current at VEB=5V Base Emitter Voltage* at VCE=6V, IC=1mA Collector Saturation Voltage* at IC=10mA, IB=1mA Gain Bandwidth Product at VCE=6V, IE=-1mA Collector Base Time Constant at VCB =6V, IE=-10mA, f=31.9MHz Output Capacitance at VCB=6V, f=1MHz Noise Figure at VCE=6V, IE=-1mA at f=1MHz, RG=500 * PW350s, Duty Cycle2% NF 2 4 dB hFE hFE hFE ICBO IEBO VBE VCE(sat) fT CCrb'b COB 40 60 90 0.65 150 0.7 0.08 250 10 1.9 80 120 180 0.1 0.1 0.75 0.3 15 2.2 A A V V MHz Ps pF Min. Typ. Max. Unit SEMTECH ELECTRONICS LTD. (R) (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 23/05/2002 ST 2SC2787 Total power dissipation vs. ambient temperature Total power dissipation, mW 350 In free air 300 250 200 150 100 Collector current vs. collector emitter voltage 10 8 Ic (mA) 70 60 50 40 6 4 2 30 20 IB=10 A 50 0 25 50 75 100 125 150 0 4 8 12 16 20 Ambient temperature ( C) Collector current vs. base emitter voltage 50 20 h FE - DC Current Gain VCE (V) VCE=6V DC CURRENT GAIN vs. COLLECTOR CURRENT VCE= 6V 10 5 200 100 50 20 10 0.1 0.2 0.5 1 2 5 10 20 100 I C, mA 2 1 0.5 0.2 0.1 0 0.2 0.4 0.6 0.8 1 1.2 I C, mA VBE,V DC current gain vs. collector emitter voltage 1000 Gain bandwidth product vs. emitter current VCE= 6V 500 IC=1mA 500 200 200 fT, MHz hFE 100 50 20 10 100 50 20 10 -0.1 -1 -10 -20 -100 1 2 5 10 VCE, V 20 50 I E, mA SEMTECH ELECTRONICS LTD. (R) (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 23/05/2002 ST 2SC2787 Forward transfer amittance vs. collector current 500 100 gfe, mS bfe, mS gfe gfe 100MHz VCE=6V output short Reverse transfer admittance vs. collector current -gre 10.7MHz 0 gre, mS bre, mS 10.7MHz 0.2 -gre 0.4 0.6 100 MHz -bre 10.7MHz VCE=6V input short 10 -bfe 100MHz -bre 100 MHz 0.8 -bfe 10.7MHz 1 0.2 1 10 20 1 0.1 1 10 I C, mA I C, mA Collector base time constant vs. emitter current 1000 VCE=6V output short 100 MHz VCB= 6V f=31.9MHz Input admittance vs. collector current 100 10 gie, mS bie, mS 10.7MHz gie 1 bie gie Cc rb'b, ps bie 100 10 0.1 1 0.1 1 10 20 -0.1 -0.3 -1 -3 -10 -20 I C, mA I E, mA Base collector saturation volage vs. collector current IC/IB=10 Input & output capacitance vs. reverse voltage 10 f=1MHz Ctr(Ic=0) VBE(sat), V VCE(sat), V 1 VBE(sat) Ctr, pF Cib, pF 3 2 Cob(IE=0) 1 0.5 0.2 0.1 VCE(sat) 0.01 0.1 1 10 20 0.1 1 10 100 I C, mA VCB, V VEB, V SEMTECH ELECTRONICS LTD. (R) (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 23/05/2002 ST 2SC2787 Forward transfer amittance vs. collector current 500 -gfb 10.7MHz VCB=6V output short Output amittance vs. collector current 10 VCE=6V Input short gfb, mS bfb, mS -gfb 100MHz bfb 10.7MHz goe, mS boe, mS 100 bfb 100MHz 1 boe 100MHz goe 100MHz boe 10.7MHz 10 0.1 goe 10.7MHz 1 0.2 1 10 20 0.01 I C, mA 0.1 1 10 100 I C, mA Reverse transfer amittance vs. collector current 1 0.5 0.2 0.1 0.05 0.02 0.01 0.1 1 10 100 -brb 10.7MHz -brb 100MHz VCB=6V input short Input amittance vs. collector current VCB=6V output short gib 10.7MHz gib 100MHz 500 100 gib, mS bib, mS grb, mS brb, mS -bib 10.7MHz 10 -bib 100MHz 1 0.2 1 10 20 I C, mA I C, mA SEMTECH ELECTRONICS LTD. (R) (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 23/05/2002 |
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