MMBTSC4226 NPN Silicon Epitaxial Planar Transistor High Frequency Low Noise Amplifier. The transistor is subdivided into three groups, Q, R and S, according to its DC current gain. Features: z Low Noise NF=1.2dB TYP. @ f=1GHz, VCE=3V, IC=7mA z High Gain S21e 2 =9.0dB TYP. @ f=1GHz, VCE=3V, IC=7mA SOT-23 Plastic Package Description: The MMBTSC4226 is a low supply voltage transistor designed for VHF, UHF low noise amplifier. Absolute Maximum Ratings (Ta = 25 OC) Symbol Value Unit Collector Base Voltage VCBO 20 V Collector Emitter Voltage VCEO 12 V Emitter Base Voltage VEBO 3 V IC 100 mA Ptot 200 mW Junction Temperature Tj 150 O Storage Temperature Range TS -65 to +150 O Collector Current Total Power Dissipation C C SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 20/10/2005 MMBTSC4226 Characteristics at Tamb=25 OC Symbol Min. Typ. Max. Unit Current Gain Group Q R hFE 50 - 100 - hFE 80 - 160 - S hFE 125 - 250 - ICBO - - 1.0 µA IEBO - - 1.0 µA fT 3.0 4.5 - GHz Cre - 0.7 1.5 pF 7 9 - dB 1.2 2.5 dB DC Current Gain at VCE=3V, IC=7mA Collector Cutoff Current at VCB=10V Emitter Cutoff Current at VEB=1V Gain Bandwidth Product at VCE=3V, IC=7mA Feed back Capacitance 1) at VCE=3V, f=1MHz Insertion Power Gain at VCE=3V, IC=7mA, f=1GHz S21e 2 Noise Figure 1) NF at VCE=3V, IC=7mA, f=1GHz Measured with 3 terminal bridge, Emitter and case should be grounded. Classification of hFE RANK Q R S MARKING R23 R24 R25 hFE 50 ~100 80 ~160 125 ~250 SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 20/10/2005 MMBTSC4226 SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 20/10/2005 MMBTSC4226 SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 20/10/2005