2N4401 General Purpose Transistors NPN Silicon 2N4401 ELECTRICAL CHARACTERISTICS (T = 25C unless otherwise noted) A Characteristic Symbol Min Max Unit OFF CHARACTERISTICS Collector Emitter Breakdown Voltage (Note 1) (I = 1.0 mAdc, I = 0) V 40 Vdc C B (BR)CEO Collector Base Breakdown Voltage (I = 0.1 mAdc, I = 0) V 60 Vdc C E (BR)CBO Emitter Base Breakdown Voltage (I = 0.1 mAdc, I = 0) V 6.0 Vdc E C (BR)EBO Base Cutoff Current (V = 35 Vdc, V = 0.4 Vdc) I 0.1 Adc CE EB BEV Collector Cutoff Current (V = 35 Vdc, V = 0.4 Vdc) I 0.1 Adc CE EB CEX ON CHARACTERISTICS (Note 1) DC Current Gain h FE (I = 0.1 mAdc, V = 1.0 Vdc) 20 C CE (I = 1.0 mAdc, V = 1.0 Vdc) 40 C CE (I = 10 mAdc, V = 1.0 Vdc) 80 C CE (I = 150 mAdc, V = 1.0 Vdc) 100 300 C CE (I = 500 mAdc, V = 2.0 Vdc) 40 C CE Collector Emitter Saturation Voltage (I = 150 mAdc, I = 15 mAdc) V 0.4 Vdc C B CE(sat) (I = 500 mAdc, I = 50 mAdc) 0.75 C B Base Emitter Saturation Voltage (I = 150 mAdc, I = 15 mAdc) V 0.75 0.95 Vdc C B BE(sat) 1.2 (I = 500 mAdc, I = 50 mAdc) C B SMALLSIGNAL CHARACTERISTICS Current Gain Bandwidth Product (I = 20 mAdc, V = 10 Vdc, f = 100 MHz) f 250 MHz C CE T CollectorBase Capacitance (V = 5.0 Vdc, I = 0, f = 1.0 MHz) C 6.5 pF CB E cb EmitterBase Capacitance (V = 0.5 Vdc, I = 0, f = 1.0 MHz) C 30 pF EB C eb Input Impedance (I = 1.0 mAdc, V = 10 Vdc, f = 1.0 kHz) h 1.0 15 k C CE ie 4 Voltage Feedback Ratio (I = 1.0 mAdc, V = 10 Vdc, f = 1.0 kHz) h 0.1 8.0 X 10 C CE re SmallSignal Current Gain (I = 1.0 mAdc, V = 10 Vdc, f = 1.0 kHz) h 40 500 C CE fe Output Admittance (I = 1.0 mAdc, V = 10 Vdc, f = 1.0 kHz) h 1.0 30 mhos C CE oe SWITCHING CHARACTERISTICS Delay Time t 15 ns d (V = 30 Vdc, V = 2.0 Vdc, CC BE I = 150 mAdc, I = 15 mAdc) Rise Time C B1 t 20 ns r Storage Time t 225 ns (V = 30 Vdc, I = 150 mAdc, s CC C I = I = 15 mAdc) B1 B2 Fall Time t 30 ns f 1. Pulse Test: Pulse Width 300 s, Duty Cycle 2.0%. ORDERING INFORMATION Device Package Shipping 2N4401 TO92 5000 Units / Bulk 2N4401G TO92 5000 Units / Bulk (Pb Free) 2N4401RLRA TO92 2000 / Tape & Reel 2N4401RLRAG TO92 2000 / Tape & Reel (Pb Free) 2N4401RLRMG TO92 2000 / Tape & Ammo Box (Pb Free) 2N4401RLRP TO92 2000 / Tape & Ammo Box 2N4401RLRPG TO92 2000 / Tape & Ammo Box (Pb Free) For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.