Ratings Symbol 2N6676 2N6678 Units
Collector - Emitter Voltage VCEO 300 400 Vdc
Collector - Base Voltage VCBO 450 650 Vdc
Collector - Base Voltage VCBX 450 650 Vdc
Emitter - Base Voltage VEBO 8.0 Vdc
Base Current IB5.0 Adc
Collector Current IC15 Adc
Total Power Dissipation @ TA= +25 °C (1) PT6.0(2) 3.0(3) W
@ TA= +25 °C 175 175 W
Operating & Storage Temperature Range Top, Tstg -65 to +200 °C
Revision Date: 8/5/2012
1
NPN High Power Silicon Transistors
2N6676 & 2N6678
Maximum Ratings
Features
• Available in JAN, JANTX, and JANTXV
per MIL-PRF-19500/538
• TO-3 (TO-204AA) Package
Electrical Characteristics
OFF Characteristics Symbol Mimimum Maximum Units
Collector - Emitter Breakdown Voltage
IC= 200 mAdc 2N6676 V(BR)CEO 300 - - - Vdc
2N6678 400
Collector - Emitter Cutoff Current
VCE = 450 Vdc, VBE = -1.5 Vdc 2N6676 ICEX - - - 0.1 Adc
VCE = 650 Vdc, VBE = -1.5 Vdc 2N6678 0.1
Emitter - Base Cutoff Current
VEB = 7.0 Vdc IEBO - - - 2.0 mAdc
Collector - Base Cutoff Current
VCB = 450 Vdc 2N6676 ICBO - - - 1.0 mAdc
VCB = 650 Vdc 2N6678 - - - 1.0
Thermal Characteristics
Characteristics Symbol Maximum Units
Thermal Resistance, Junction-to-Case RθJC 1.0 °C/W
1) Derate linearly @ 1.0 mW/°C for TA > +25°C
2) Derate linearly @ 34.2 mW/°C for TA > +25°C
3) Derate linearly @ 17.1 mW/°C for TA > +25°C
603-641-3800 • 888-641--SEMI (7364) • metelics-sales@aeroflex.com • www.aeroflex.com/metelics
Revision Date: 8/5/2012
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Electrical Characteristics -con’t
ON Characteristics (2) Symbol Minimum Maximum Unit
Forward Current Transfer Ratio
IC= 1.0 Adc, VCE = 3.0 Vdc HFE 15 40
IC= 15.0 Adc, VCE = 3.0 Vdc 8 20
Collector - Emitter Saturation Voltage
IC= 15.0 Adc, IB = 3.0 Adc VCE(sat) - - - 1.0 Vdc
Base - Emitter Saturation Voltage
IC= 15.0 Adc, IB= 3.0 Vdc VBE(sat) - - - 1.5 Vdc
DYNAMIC Characteristic
Small-Signal Short-Circuit Forward Current Transfer Ratio
IC= 1.0 Adc, VCE = 10 Vdc, f= 5.0 kHz | hfe | 3.0 10
Output Capacitance
VCB = 10 Vdc, IE= 0, 100 kHz ≤f ≤1.0 MHz Cobo 150 500 pF
Switching Characteristic
Delay Time td0.1μs
Rise Time tr0.6μs
Storage Time See Figure 3 of MIL-PRF-19500/538 ts2.5μs
Fall Time tf0.5μs
Cross-Over Time tc0.5μs
SAFE OPERATING AREA
DC Tests: TC= +25 °C, 1 Cycle, t = 1.0 s (See Figure 4 of MIL-PRF-19500/537)
Test 1: VCE = 11.7 Vdc, IC= 15 Adc
Test 2: VCE = 30 Vdc, IC= 5.9 Adc
TEST 3: VCE = 100 Vdc, IC= 0.25 Adc
TEST 4: VCE = 25 Vdc, IC= 7.0 Adc
TEST 5: VCE = 300 Vdc, IC= 20 mAdc 2N6676
VCE = 400 Vdc, IC= 10 mAdc 2N6678
Clamped Switching
TA= 25 °C, VCC = 15 Vdc
IC= 15 Adc, Clamp Voltage = 350 2N6676
IC= 15 Adc, Clamp Voltage = 450 2N6678
(2) Pulse Test: Pulse Width = 300 μs, Duty Cycle ≤2.0%.
2N6676 & 2N6678
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Revision Date: 8/5/2012
Aeroflex / Metelics, Inc.
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Tel: (408) 737-8181 Tel: (603) 641-3800
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Sales: 888-641-SEMI (7364)
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Tel: (603) 641-3800
Fax: (978) 683-3264
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herein at any time without notice. Consult Aeroflex or an authorized sales representative to
verify that the information in this data sheet is current before using this product. Aeroflex
does not assume any responsibility or liability arising out of the application or use of any
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2N6676 & 2N6678
Outline Drawing