TECHNICAL DATA
NPN SILICON SWITCHING TRANSISTOR
Qualified per MIL-PRF-19500/255
Devices
Qualified Level
2N2221A
2N2221AL
2N2221AUA
2N2221AUB
2N2222A
2N2222AL
2N2222AUA
2N2222AUB
JAN
JANTX
JANTXV
JANS
JANHC
MAXIMUM RATINGS
Ratings
Symbol
All Types
Unit
Collector-Emitter Voltage
V
CEO
50
Vdc
Collector-Base Voltage
V
CBO
75
Vdc
Emitter-Base Voltage
V
EBO
6.0
Vdc
Collector Current
I
C
800
mAdc
Total Power Dissipation @ T
A
= +25
0
C
2N2221A, L; 2N2222A, L
(1)
2N2221AUA; 2N2222AUA
(2)
2N2221AUB; 2N2222AUB
(1)
P
T
0.5
0.65
0.50
W
Operating & Storage Junction Temperature Range
T
op,
T
stg
-65 to +200
0
C
THERMAL CHARACTERISTICS
Characteristics
Symbol
Max.
Unit
Thermal Resistance, Junction-to-Ambient
2N2221A, L; 2N2222A, L
2N2221AUA; 2N2222AUA
2N2221AUB; 2N2222AUB
R
JA
325
210
325
0
C/W
1) Derate linearly 3.08 mW/
0
C above T
A
> +37.5
0
C
2) Derate linearly 4.76 mW/
0
C above T
A
> +63.5
0
C
TO-18* (TO-206AA)
2N2221A, 2N2222A
4 PIN*
2N2221AUA,
2N2222AUA
3 PIN*
2N2221AUB, 2N2222AUB
*See appendix A for package
outline
ELECTRICAL CHARACTERISTICS (T
A
= 25
0
C unless otherwise noted)
Characteristics
Symbol
Min.
Max.
Unit
OFF CHARACTERISTICS
Collector-Emitter Breakdown Voltage
I
C
= 10 mAdc
V
(BR)CEO
50
Vdc
Collector-Base Cutoff Current
V
CB
= 75 Vdc
V
CB
= 60 Vdc
I
CBO
10
10
Adc
Adc
Emitter-Base Cutoff Current
V
EB
= 6.0 Vdc
V
EB
= 4.0 Vdc
I
EBO
10
10
Adc
Adc
Collector-Base Cutoff Current
V
CE
= 50 Vdc
I
CES
50
Adc
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803
120101
Page 1 of 2
2N2221A, 2N2221AUA, 2N2221AUB, 2N2222A, 2N2222AUA, 2N2222AUB JAN SERIES
ELECTRICAL CHARACTERISTICS (con't)
Characteristics
Symbol
Min.
Max.
Unit
ON CHARACTERISTICS
(3)
Forward-Current Transfer Ratio
I
C
= 0.1 mAdc, V
CE
= 10 Vdc 2N2221A, L, UA, UB
2N2222A, L, UA, UB
I
C
= 1.0 mAdc, V
CE
= 10 Vdc 2N2221A, L, UA, UB
2N2222A, L, UA, UB
I
C
= 10 mAdc, V
CE
= 10 Vdc 2N2221A, L, UA, UB
2N2222A, L, UA, UB
I
C
= 150 mAdc, V
CE
= 10 Vdc 2N2221A, L, UA, UB
2N2222A, L, UA, UB
I
C
= 500 mAdc, V
CE
= 10 Vdc 2N2221A, L, UA, UB
2N2222A, L, UA, UB
h
FE
30
50
35
75
40
100
40
100
20
30
150
325
120
300
Collector-Emitter Saturation Voltage
I
C
= 150 mAdc, I
B
= 15 mAdc
I
C
= 500 mAdc, I
B
= 50 mAdc
V
CE(sat)
0.3
1.0
Vdc
Base-Emitter Voltage
I
C
= 150 mAdc, I
B
= 15 mAdc
I
C
= 500 mAdc, I
B
= 50 mAdc
V
BE(sat)
0.6
1.2
2.0
Vdc
DYNAMIC CHARACTERISTICS
Small-Signal Short-Circuit Forward Current Transfer Ratio
I
C
= 1.0 mAdc, V
CE
= 10 Vdc, f = 1.0 kHz 2N2221A, L, UA, UB
2N2222A, L, UA, UB
h
fe
30
50
Magnitude of Small-Signal Short-Circuit
Forward Current Transfer Ratio
I
C
= 20 mAdc, V
CE
= 20 Vdc, f = 100 MHz
h
fe
2.5
Output Capacitance
V
CB
= 10 Vdc, I
E
= 0, 100 kHz
f
1.0 MHz
C
obo
8.0
pF
Input Capacitance
V
EB
= 0.5 Vdc, I
C
= 0, 100 kHz
f
1.0 MHz
C
ibo
25
pF
SWITCHING CHARACTERISTICS
Turn-On Time
See Figure 8 of MIL-PRF-19500/255
t
on
35
s
Turn-Off Time
See Figure 9 of MIL-PRF-19500/255
t
off
300
s
(3) Pulse Test: Pulse Width = 300
s, 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
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