2N2944A, 2N2945A, 2N2946A JAN SERIES
ELECTRICAL CHARACTERISTICS (con’t)
Characteristics
Emitter-Base Cutoff Current
V
EB
= 15 Vdc
V
EB
= 25 Vdc
V
EB
= 40 Vdc
Symbol
2N2944A
2N2945A
2N2946A
I
EBO
Min.
Max.
0.1
0.2
0.5
Unit
ηAdc
ON CHARACTERISTICS
(2)
Forward-Current Transfer Ratio
I
C
= 1.0 mAdc, V
CE
= 0.5 Vdc
2N2944A
2N2945A
2N2946A
2N2944A
2N2945A
2N2946A
2N2944A
2N2945A
2N2946A
2N2944A
2N2945A
2N2946A
2N2944A
2N2945A
2N2946A
h
FE
100
70
50
50
30
20
0.3
0.5
0.8
0.6
1.0
2.0
1.0
1.6
2.5
Forward-Current Transfer Ratio
I
B
= 200
µAdc,
V
EC
= -0.5 Vdc
h
FE(INV)
Emitter-Collector Offset Voltage
I
B
= 200
µAdc,
I
E
= 0
I
B
= 1.0 mAdc, I
E
= 0
V
EC(OFS)
mVdc
I
B
= 2.0 mAdc, I
E
= 0
DYNAMIC CHARACTERISTICS
2N2944A
2N2945A
2N2946A
I
B
= 1.0 mAdc, I
E
= 0, I
e
= 100
µAdc
(rms)
2N2944A
f =1.0 kHz
2N2945A
2N2946A
Magnitude of Small-Signal Forward Current Transfer Ratio
I
C
= 1.0 mAdc, V
CE
= 6.0Vdc, f = 1.0 MHz
2N2944A
2N2945A
2N2946A
Output Capacitance
V
CB
= 6.0 Vdc, I
E
= 0, 100 kHz
≤
f
≤
1.0 MHz
Input Capacitance
V
EB
= 6.0 Vdc, I
C
= 0, 100 kHz
≤
f
≤
1.0 MHz
(2) Pulse Test: Pulse Width = 300µs, Duty Cycle
≤
2.0%.
Emitter-Collector On-State Resistance
I
B
= 100
µAdc,
I
E
= 0, I
e
= 100
µAdc
(rms)
f = 1.0 kHz
10
12
14
4.0
6.0
8.0
15
10
5.0
55
55
55
10
6.0
pF
pF
r
ec
(on)
Ω
h
fe
C
obo
C
ibo
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803
120101
Page 2 of 2
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