BD676, BD676A, BD678, BD678A, BD680, BD680A, BD682, BD682T
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2
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ELECTRICAL CHARACTERISTICS (TC = 25_C unless otherwise noted)
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Characteristic
Symbol
Min
Max
Unit
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OFF CHARACTERISTICS
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Collector−Emitter Breakdown Voltage (Note 1) BD676, 676A
(IC = 50 mAdc, IB = 0) BD678, 678A
BD680, 680A
BD682
BVCEO
45
60
80
100
−
−
−
−
Vdc
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Collector Cutoff Current (VCE = Half Rated VCEO, IB = 0)
ICEO
−
500
mAdc
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Collector Cutoff Current
(VCB = Rated BVCEO, IE = 0)
(VCB = Rated BVCEO. IE = 0, TC = 100°C)
ICBO
−
−
0.2
2.0
mAdc
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Emitter Cutoff Current (VBE = 5.0 Vdc, IC = 0)
IEBO
−
2.0
mAdc
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ON CHARACTERISTICS
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DC Current Gain (Note 1)
(IC = 1.5 Adc, VCE = 3.0 Vdc) BD676, 678, 680, 682
(IC = 2.0 Adc, VCE = 3.0 Vdc) BD676A, 678A, 680A
hFE
750
750
−
−
−
−
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Collector−Emitter Saturation Voltage (Note 1)
(IC = 1.5 Adc, IB = 30 mAdc) BD678, 680, 682
(IC = 2.0 Adc, IB = 40 mAdc) BD676A, 678A, 680A
VCE(sat)
−
−
2.5
2.8
Vdc
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Base−Emitter On Voltage (Note 1)
(IC = 1.5 Adc, VCE = 3.0 Vdc) BD678, 680, 682
(IC = 2.0 Adc, VCE = 3.0 Vdc) BD676A, 678A, 680A
VBE(on)
−
−
2.5
2.5
Vdc
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DYNAMIC CHARACTERISTICS
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Small−Signal Current Gain (IC = 1.5 Adc, VCE = 3.0 Vdc, f = 1.0 MHz)
hfe
1.0
−
−
1. Pulse Test: Pulse Width v 300 ms, Duty Cycle v 2.0%.
50
40
10
5.0
015 30 45 60 75 105 135 150 165
Figure 1. Power Temperature Derating
TC, CASE TEMPERATURE (°C)
PD, POWER DISSIPATION (WATTS)
12090
45
20
15
30
25
35
Figure 2. DC Safe Operating Area
5.0
1.0
VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS)
2.0
1.0
0.5
0.05 2.0 5.0 10 50 100
BONDING WIRE LIMIT
THERMAL LIMIT at TC = 25°C
SECONDARY BREAKDOWN LIMIT
0.2
0.1
IC, COLLECTOR CURRENT (AMP)
TC = 25°C
BD676, 676A
BD678, 678A
BD680, 680A
BD682
20
There are two limitations on the power handling ability of
a transistor average junction temperature and secondary
breakdown. Safe operating area curves indicate IC − VCE
limits of the transistor that must be observed for reliable
operation; e.g., the transistor must not be subjected to greater
dissipation than the curves indicate.
At high case temperatures, thermal limitations will reduce
the power that can be handled to values less than the
limitations imposed by secondary breakdown.