2N3905
PNP General Purpose Amplifier
(continued)
Electrical Characteristics TA = 25°C unless otherwise noted
OFF CHARACTERISTICS
Symb ol Parameter Test Conditions Min Max Un its
V(BR)CEO Collector-Emitter Breakdown Voltage* IC = 1.0 mA, IB = 0 40 V
V(BR)CBO Collector-Base Breakdown Voltage IC = 1 0 µA, IE = 0 40 V
V(BR)EBO Em it ter - Bas e B r e akdown Voltage IE = 10 µA, IC = 0 5.0 V
ICEX Collector Cutoff Current VCE = 3 0 V, V OB = 3.0 V 50 nA
IBL Ba se Cutoff Curre nt VCE = 3 0 V, V OB = 3.0 V 50 nA
hFE DC Cur rent G ain VCE = 1.0 V, IC = 0.1 mA
VCE = 1.0 V, IC = 1.0 mA
VCE = 1.0 V, IC = 1 0 mA
VCE = 1.0 V, IC = 5 0 mA
VCE = 1.0 V, IC = 1 00 m A
30
40
50
30
15
150
VCE(sat)Co ll ector-E mitter Sa turation Vo ltage IC = 10 mA, IB = 1.0 mA
IC = 50 mA, IB = 5.0 mA 0.25
0.40 V
V
VBE(sat)Base-Emitter Saturation Voltage IC = 1 0 mA, IB = 1.0 mA
IC = 50 mA, IB = 5.0 mA 0.65 0.85
0.95 V
V
SMALL SIGNAL CHARACTERISTICS
Cob Output Capacita n ce VCB = 5.0 V, f = 1.0 MHz 4.5 pF
Cib Input Capacitance VEB = 0.5 V, f = 1.0 MHz 10 pF
hfe Small-Signal Current Gain IC = 10 mA, VCE = 2 0 V,
f = 100 MH z 2.0
hfe Small-Signal Current Gain IC = 1.0 mA, VCE =10 V, 50 200
hre Voltage Feedback Ratio f = 1.0 KHz 0.1 5.0 x10 -4
hie Input Impedance 0.5 8.0 kΩ
hoe Output Impedance 1.0 40 µmhos
NF Noise Figure VCE = 5.0 V, IC = 1 00 µA,
RS = 1.0 kΩ,
BW = 1 0 Hz to 15.7 KHz
5.0 dB
SWITCHING CHARACTERISTICS
*Pulse Test: Pulse Width ≤ 300 µs, Duty Cycle ≤ 2.0%
tdDelay Time VCC = 3.0 V, ICS = 1 0 mA, 35 ns
trRise Time IB1 = 1.0 mA ,VOB ( o ff ) = 3. 0 V 35 ns
tsStor age T i m e VCC = 3.0 V, ICS = 10 mA, 200 ns
tfFall Time IB1 = IB2 = 1.0 mA 60 ns
ON CHARACTERISTICS*