TECHNICAL DATA
NPN MEDIUM POWER SILICON TRANSISTOR
Qualified per MIL-PRF-19500/581
Devices Qualified Level
2N4237 2N4238 2N4239
JANTX
JANTXV
MAXIMUM RATINGS (TA = 250C Unless Otherwise noted)
Ratings Symbol
2N4237
2N4238
2N4239
Units
Collector-Emitter Voltage VCEO 40 60 80 Vdc
Collector-Base Voltage VCBO 50 80 100 Vdc
Emitter-Base Voltage VEBO 6.0 Vdc
Collector Current IC 1.0 Adc
Base Current IB 0.5 Adc
Total Power Dissipation @ TA = +250C(1)
@ TC = +250C(2) PT 1.0
6.0 W
W
Operating & Storage Temperature Range Top, Tstg
-65 to +200 °C
THERMAL CHARACTERISTICS
Characteristics Symbol
Max. Unit
Thermal Resistance, Junction-to-Case RθJC 29 0C/W
1) Derate linearly 5.7 mW/0C for TA > +250C
2) Derate linearly 34 mW/0C for TC > +250C
*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 = 100 mAdc 2N4237
2N4238
2N4239
V(BR)CEO 50
80
100
Vdc
Emitter-Base Cutoff Current
VEB = 6.0 Vdc IEBO 0.5 mAdc
Collector-Emitter Cutoff Current
VCE = 90 Vdc, VBE = 1.5 Vdc
VCE = 50 Vdc 2N4237
VCE = 80 Vdc 2N4238
VCE = 10 Vdc 2N4239
ICEX
100
100
100
nAdc
Collector-Base Cutoff Current
VCE = 50 Vdc 2N4237
VCE = 80 Vdc 2N4238
VCE = 10 Vdc 2N4239
ICBO 100
100
100
nAdc
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803
120101
Page 1 of 2
TO-39*
2N4237, 4238, 4239 JAN, JANTX, JANTXV
ELECTRICAL CHARACTERISTICS (con’t)
Characteristics Symbol Min. Max. Unit
ON CHARACTERISTICS (3)
Forward Current Transfer Ratio
IC = 250 mAdc, VCE = 1.0 Vdc
IC = 500 mAdc, VCE = 1.0 Vdc hFE
30
30
150
Collector-Emitter Saturation Voltage
IC = 500 Adc, IB = 50 Adc
IC = 1.0 Adc, IB = 0.1 Adc
VCE(sat)
0.3
0.6 Vdc
Base-Emitter Saturation Voltage
IC = 500 Adc, IB = 50 Adc
IC = 1.0 Adc, IB = 0.1 Adc
VBE(sat)
1.0
1.5 Vdc
DYNAMIC CHARACTERISTICS
Magnitude of Common Emitter Small-Signal
Short Circuit Forward-Current Transfer Ratio
IC = 100 mAdc, VCE = 10 Vdc, f = 10 MHz
hfe 3.0
Output Capacitance
VCB = 10 Vdc, IE = 0, f = 100 kHz Cobo 100 pF
SAFE OPERATING AREA
DC Tests
TC = +250C, 1 Cycle, t ≥ 0.5 s
Test 1
VCE = 6.0 Vdc, IC = 1.0 Adc
Test 2
VCE = 12 Vdc, IC = 500 mAdc
Test 3
VCE = 30 Vdc, IC = 166 mAdc 2N4237
VCE = 50 Vdc, IC = 100 mAdc 2N4238
VCE = 70 Vdc, IC = 71 mAdc 2N4239
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803
120101
Page 2 of 2
