BF240 NJSEMI | Alldatasheet
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20 STERN AVE. SPRINGFIELD, NEW JERSEY 07081 U.S.A. TELEPHONE: (973) 376-2922 (212)227-6005 FAX: (973) 376-8960 BF240, BF241 NPN Silicon Epitaxial Planar Transistors designed for emitter-grounded AM and FM amplifier stages max. Q5 # Plastic case = JEDEC TO-92 TO-18 compatible The case is impervious to light Weight approximately 0.18 g Dimensions in mm Absolute Maximum Ratings Collector Base Voltage Collector Emitter Voltage Emitter Base Voltage Collector Current Base Current Power Dissipation at Tamb = 25 °C Junction Temperature Storage Temperature Range Symbol VCBO VCEO VEBO lo IB Ts Value 3001' 150 -55 .. . +150 Unit V V V mA mA mW CC " Valid provided that leads are kept at ambient temperature at a distance ot 2 mm from case NJ Semi-Conductors reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by NJ Semi-Conductors is believed to be both accurate and reliable at the time of going to press. However, NJ Semi-Conductors assumes no responsibility for any errors or omissions discovered in its use. NJ Semi-Conductors encourages customers to verify that datasheets are current before placing orders. Quality Semi-Conductors
BF240, BF241 Characteristics at Tamb = 25 °C DC Current Gain at VCE - 1 0 V, lc = 1 mA BF240 BF241 Base Emitter Voltage at VCB = 1 0 V, lc = 1 mA Collector Cutoff Current at VCB = 20 V Thermal Resistance Junction to Ambient Collector Base Breakdown Voltage at lc = 1 0 /uA Collector Emitter Breakdown Voltage at lc = 2 mA Emitter Base Breakdown Voltage at IE = 1 0 ^A Gain Bandwidth Product at VCB = 10V, lc = 1 mA, f= 100MHz BF240 BF241 Feedback Capacitance at VCB= 10 V, lc = 1 mA, f = 1 MHz Noise Figure (emitter grounded) at VCB = 10V, lc = 1 mA gs = 5 mS, t = 200 kHz ys = (6.6 - j 3.3) mS, f = 1 00 MHz Output Admittance at VCB = 10 V, lc = 1 mA, f = 10.7 MHz at VCB = 10 V, lc = 1 mA, f = 470 kHz Symbol hFE hFE VBE ICBO RlhA V(BH)CBO V(BR)CEO V(BH)EBO fj fr -cre F F Min. 650 Typ. 700 430 400 0.27 1.5 1.6 Max. 220 125 740 100 420" 3.5 10.5 8.3 Value mV nA K/W V V V MHz MHz PF dB dB pS Ms