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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