2N2944A, 2N2945A, 2N2946A JAN SERIES
ELECTRICAL CHARACTERISTICS (con’t)
Characteristics Symbol Min. Max. Unit
Emitter-Base Cutoff Current
V
EB
= 15 Vdc 2N2944A
V
EB
= 25 Vdc 2N2945A
V
EB
= 40 Vdc 2N2946A
I
EBO
0.1
0.2
0.5
ηAdc
ON CHARACTERISTICS
(2)
Forward-Current Transfer Ratio
I
C
= 1.0 mAdc, V
CE
= 0.5 Vdc 2N2944A
2N2945A
2N2946A
h
FE
100
70
50
Forward-Current Transfer Ratio
I
B
= 200 µAdc, V
EC
= -0.5 Vdc 2N2944A
2N2945A
2N2946A
h
FE(INV)
50
30
20
Emitter-Collector Offset Voltage
I
B
= 200 µAdc, I
E
= 0 2N2944A
2N2945A
2N2946A
I
B
= 1.0 mAdc, I
E
= 0 2N2944A
2N2945A
2N2946A
I
B
= 2.0 mAdc, I
E
= 0 2N2944A
2N2945A
2N2946A
V
EC(OFS)
0.3
0.5
0.8
0.6
1.0
2.0
1.0
1.6
2.5
mVdc
DYNAMIC CHARACTERISTICS
Emitter-Collector On-State Resistance
I
B
= 100 µAdc, I
E
= 0, I
e
= 100 µAdc (rms) 2N2944A
f = 1.0 kHz 2N2945A
2N2946A
I
B
= 1.0 mAdc, I
E
= 0, I
e
= 100 µAdc (rms) 2N2944A
f =1.0 kHz 2N2945A
2N2946A
r
ec
(on)
10
12
14
4.0
6.0
8.0
Ω
Magnitude of Small-Signal Forward Current Transfer Ratio
I
C
= 1.0 mAdc, V
CE
= 6.0Vdc, f = 1.0 MHz 2N2944A
2N2945A
2N2946A
h
fe
15
10
5.0
55
55
55
Output Capacitance
V
CB
= 6.0 Vdc, I
E
= 0, 100 kHz ≤ f ≤ 1.0 MHz
C
obo
10 pF
Input Capacitance
V
EB
= 6.0 Vdc, I
C
= 0, 100 kHz ≤ f ≤ 1.0 MHz
C
ibo
6.0 pF
(2) Pulse Test: Pulse Width = 300µs, Duty Cycle ≤ 2.0%.
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803
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