ST 2SA1048 PNP Silicon Epitaxial Planar Transistor for audio frequency amplifier applications. The transistor is subdivided into three groups, O, Y and G, according to its DC current gain. As complementary type the NPN transistor ST 2SC2458 is recommended. On special request, these transistors can be manufactured in different pin configurations. TO-92 Plastic Package Weight approx. 0.19g Absolute Maximum Ratings (Ta = 25oC) Symbol Value Unit Collector Base Voltage -VCBO 50 V Collector Emitter Voltage -VCEO 50 V Emitter Base Voltage -VEBO 5 V Collector Current -IC 150 mA Base Current -IB 50 mA Power Dissipation Ptot 200 mW Junction Temperature Tj 125 O Storage Temperature Range TS -55 to +125 O 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 : 07/12/2002 ST 2SA1048 Characteristics at Tamb=25 OC Symbol Min. Typ. Max. Unit Current Gain Group O hFE 70 - 140 - Y hFE 120 - 240 - G hFE 200 - 400 - -ICBO - - 0.1 μA -IEBO - - 0.1 μA -VCE(sat) - 0.1 0.3 V fT 80 - - MHz COB - 4 7 pF NF - 1 10 dB DC Current Gain at -VCE=6V, -IC=2mA Collector Cutoff Current at -VCB=50V Emitter Cutoff Current at -VEB=5V Collector Saturation Voltage at -IC=100mA, -IB=10mA Transition Frequency at -VCE=10V, -IC=1mA Output Capacitance at -VCB=10V, f=1MHz Noise Figure at -VCE=6V, -IC=0.1mA at f=1kHz, RG=10KΩ SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company ® listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 07/12/2002