Ratings Symbol 2N6249 2N6250 2N6251 Units
Collector - Emitter Voltage VCEO 200 275 350 Vdc
Collector - Base Voltage VCBO 300 375 450 Vdc
Emitter - Base Voltage VEBO 6.0 Vdc
Collector Current IC10 Adc
Base Current IB5.0 Adc
Total Power Dissipation @ TA= +25 °C (1) PT6.0 W
@ TA= +25 °C (2) 175 W
Operating & Storage Temperature Range TOP, Tstg -65 to +200 °C
Revision Date: 8/5/2012
1
NPN High Power Silicon Transistors
2N6249, 2N6250, 2N6251
Maximum Ratings
Features
• Available in JAN, JANTX, and JANTXV
per MIL-PRF-19500/371
• TO-3 (TO-204AA) Package
Electrical Characteristics
OFF Characteristics Symbol Mimimum Maximum Units
Collector-Emitter Breakdown Voltage
IC= 20 mAdc, L = 42 mH, f = 30-60 GHz 2N6249 I(BR)CEO - - - 200 Vdc
(See Figure 10 of MIL-PRF-19500/510) 2N6250 275
2N6251 350
Collector-Emitter Breakdown Voltage
IC= 200 mAdc, L = 14 mH, f = 30-60 GHz 2N6249 I(BR)CER - - - 225 Vdc
(See Figure 10 of MIL-PRF-19500/510) 2N6250 300
2N6251 375
Emitter-Base Cutoff Current
VEB = 6.0 Vdc IEBO - - - 100 μAdc
Collector-Emitter Cutoff Current
VCE = 150 Vdc 2N6249
VCE = 225 Vdc 2N6250 ICEO - - - 1.0 mAdc
VCE = 225 Vdc 2N6251
Collector-Emitter Cutoff Current
VCE = 225 Vdc, VBE = -1.5 Vdc 2N6249
VCE = 300 Vdc, VBE = -1.5 Vdc 2N6250 ICEX - - - 100 μAdc
VCE = 375 Vdc, VBE = -1.5 Vdc 2N6251
Thermal Characteristics
Characteristics Symbol Maximum Units
Thermal Resistance, Junction-to-Case RθJC 1.25 °C/W
1) Derate linearly @ 34.2 mW/°C for TA > +25°C
2) Derate linearly @ 1.0 mW/°C for TC > +75°C
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Revision Date: 8/5/2012
2
Electrical Characteristics -con’t
OFF Characteristics (con’t) Symbol Minimum Maximum Unit
Collector-Base Cutoff Current
VCE = 300 Vdc 2N6249
VCE = 325 Vdc 2N6250 ICBO - - - 1.0 mAdc
VCE = 450 Vdc 2N6251
ON Characteristics (2)
Forward Current Transfer Ratio
IC= 10 Adc, VCE = 3.0 Vdc 2N6249 10 50
2N6250 HFE 850
2N6251 6 50
Collector - Emitter Sustaining Voltage
IC= 10 Adc, IB= 1.0 Adc 2N6249
IC= 10 Adc, IB= 1.25 Adc 2N6250 VCE(sat) - - - 1.5 Vdc
IC= 10 Adc, IB= 1.67 Adc 2N6251
Base-Emitter Saturation Voltage
IC= 10 Adc, IB= 1.0 Adc 2N6249
IC= 10 Adc, IB= 1.25 Adc 2N6250 VBE(sat) - - - 2.25 Vdc
IC= 10 Adc, IB= 1.67 Adc 2N6251
DYNAMIC Characteristic
Small-Signal Short-Circuit Forward Current Transfer Ratio
IC = 1.0 Adc, VCE= 10 Vdc, f = 1 MHz | hfe | 2.5 15
Output Capacitance
VCB = 10 Vdc, IE= 0, 100 kHz ≤f ≤1.0 MHz Cobo - - - 500 pF
Switching Characteristic
Turn-On Time
VCC =200 Vdc, IC= 1.0 Adc,
IB1 = 1.0 Adc 2N6249
IB1 = 1.25Adc 2N6250 ton - - - 2.0 μs
IB1 = 1.67 Adc 2N6251
Tum-Off Time
VCC =200 Vdc, IC= 1.0 Adc,
IB1 = 1.0 Adc 2N6249
IB1 = 1.25Adc 2N6250 toff - - - 4.5 μs
IB1 = 1.67 Adc 2N6251
SAFE OPERATING AREA
DC Tests: TC= +25 °C, 1 Cycle, t = 1.0 s (See Figure 12 of MIL-PRF-19500/371)
Test 1: VCE = 17.5 Vdc, IC= 10 Adc
Test 2: VCE = 30 Vdc, IC= 5.8 Adc
TEST 3: VCE = 100 Vdc, IC= 0.3 Adc
TEST 4: VCE = 200 Vdc, IC= 0.13 Adc (For 2N6249 only)
TEST 5: VCE = 275 Vdc, IC= 0.09 Adc (For 2N6250 only)
TEST 6: VCE = 350 Vdc, IC= 0.09 Adc (For 2N6251 only)
(2) Pulse Test: Pulse Width = 300 μs, Duty Cycle ≤2.0%.
2N6249 & 2N6250
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Revision Date: 8/5/2012
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Sales: 888-641-SEMI (7364)
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2N6249 & 2N6250
Outline Drawing