TECHNICAL DATA
PNP SILICON SMALL SIGNAL TRANSISTOR
Qualified per MIL-PRF-19500/382
Devices Qualified Level
2N2944A 2N2945A 2N2946A
JAN
JANTX
JANTV
MAXIMUM RATINGS
Ratings Sym 2N2944A 2N2945A 2N2946A Unit
Collector-Emitter Voltage VCEO 10 20 35 Vdc
Emitter-Collector Voltage VECO 10 20 35 Vdc
Collector-Base Voltage VCBO 15 25 40 Vdc
Emitter-Base Voltage VEBO 15 25 40 Vdc
Collector Current IC 100 mAdc
Total Power Dissipation
@ TA = +250C PT(1) 400 mW
Operating & Storage Junction
Temperature Range TJ, Tstg -65 to +200 0C
1) Derate linearly 2.30 mW/0C above TA = +250C
TO-46*
(TO-206AB)
*See appendix A for
package outline
ELECTRICAL CHARACTERISTICS (TA = 250C unless otherwise noted)
Characteristics Symbol Min. Max. Unit
OFF CHARACTERISTICS
Collector-Emitter Breakdown Voltage
IC = 10 µAdc 2N2944A
2N2945A
2N2946A
V(BR)CEO
10
20
35
Vdc
Emitter-Collector Breakdown Voltage
IE = 10 µAdc 2N2944A
2N2945A
2N2946A
V(BR)ECO
10
20
35
Vdc
Collector-Base Cutoff Current
IC = 10 µAdc, VCB = -15 Vdc 2N2944A
IC = 10 µAdc, VCB = -25 Vdc 2N2945A
IC = 10 µAdc, VCB = -40 Vdc 2N2946A
ICBO
10
10
10
µAdc
µAdc
µAdc
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803
120101
Page 1 of 2
2N2944A, 2N2945A, 2N2946A JAN SERIES
ELECTRICAL CHARACTERISTICS (con’t)
Characteristics Symbol Min. Max. Unit
Emitter-Base Cutoff Current
VEB = 15 Vdc 2N2944A
VEB = 25 Vdc 2N2945A
VEB = 40 Vdc 2N2946A
IEBO
0.1
0.2
0.5 ηAdc
ON CHARACTERISTICS (2)
Forward-Current Transfer Ratio
IC = 1.0 mAdc, VCE = 0.5 Vdc 2N2944A
2N2945A
2N2946A
hFE
100
70
50
Forward-Current Transfer Ratio
IB = 200 µAdc, VEC = -0.5 Vdc 2N2944A
2N2945A
2N2946A
hFE(INV) 50
30
20
Emitter-Collector Offset Voltage
IB = 200 µAdc, IE = 0 2N2944A
2N2945A
2N2946A
IB = 1.0 mAdc, IE = 0 2N2944A
2N2945A
2N2946A
IB = 2.0 mAdc, IE = 0 2N2944A
2N2945A
2N2946A
VEC(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
IB = 100 µAdc, IE = 0, Ie = 100 µAdc (rms) 2N2944A
f = 1.0 kHz 2N2945A
2N2946A
IB = 1.0 mAdc, IE = 0, Ie = 100 µAdc (rms) 2N2944A
f =1.0 kHz 2N2945A
2N2946A
rec(on)
10
12
14
4.0
6.0
8.0
Ω
Magnitude of Small-Signal Forward Current Transfer Ratio
IC = 1.0 mAdc, VCE = 6.0Vdc, f = 1.0 MHz 2N2944A
2N2945A
2N2946A
hfe
15
10
5.0
55
55
55
Output Capacitance
VCB = 6.0 Vdc, IE = 0, 100 kHz ≤ f ≤ 1.0 MHz Cobo 10 pF
Input Capacitance
VEB = 6.0 Vdc, IC = 0, 100 kHz ≤ f ≤ 1.0 MHz Cibo 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
120101
Page 2 of 2
