2N4124 Small Signal Transistors (NPN) TO-92 FEATURES .142 (3.6) min. .492 (12.5) .181 (4.6) .181 (4.6) ♦ NPN Silicon Epitaxial Transistor for switching and amplifier applications. ♦ Especially suitable for AF-driver and low-power output stages. ♦ As complementary type, the PNP transistor 2N4126 is recommended. max. ∅ .022 (0.55) .098 (2.5) C E B Dimensions in inches and (millimeters) MECHANICAL DATA Case: TO-92 Plastic Package Weight: approx. 0.18 g MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 °C ambient temperature unless otherwise specified Symbol Value Unit Collector-Emitter Voltage VCEO 25 V Collector-Base Voltage VCBO 30 V Emitter-Base Voltage VEBO 5 V Collector Current IC 200 mA Peak Collector Current ICM 800 mA Base Current IB 50 mA Power Dissipation at Tamb = 25 °C Ptot 6251) mW Junction Temperature Tj 150 °C Storage Temperature Range TS –65 to +150 °C 1) 4/98 Valid provided that leads are kept at ambient temperature at a distance of 2 mm from case. 2N4124 ELECTRICAL CHARACTERISTICS Ratings at 25 °C ambient temperature unless otherwise specified Symbol Min. Typ. Max. Unit hFE hFE 120 – – 60 360 – – – Collector-Base Cutoff Current at VCB = 20 V ICBO – – 50 nA Emitter-Base Cutoff Current at VEB = 3 V IEBO – – 50 nA Collector Saturation Voltage at IC = 50 mA, IB = 5 mA VCESAT – – 0.3 V Base Saturation Voltage at IC = 50 mA, IB = 5 mA VBESAT – – 0.95 V Collector-Emitter Breakdown Voltage at IC = 1 mA V(BR)CEO 25 – – V Collector-Base Breakdown Voltage at IC = 10 µA V(BR)CBO 30 – – V Emitter-Base Breakdown Voltage at IE = 10 µA V(BR)EBO 5 – – V Gain-Bandwidth Product at VCE = 5 V, IC = 10 mA, f = 50 MHz fT – 200 – MHz Collector-Base Capacitance at VCB = 10 V, f = 1 MHz CCBO – 12 – pF Thermal Resistance Junction to Ambient Air RthJA – – 2001) K/W DC Current Gain at VCE = 1 V, IC = 2.0 mA at VCE = 1 V, IC = 50 mA 1) Valid provided that leads are kept at ambient temperature at a distance of 2 mm from case RATINGS AND CHARACTERISTIC CURVES 2N4124 RATINGS AND CHARACTERISTIC CURVES 2N4124 RATINGS AND CHARACTERISTIC CURVES 2N4124