MIL-PRF-19500/620J
TEMPERATURE-CURRENT DERATING CURVE
Temper1N68re-CXIArent D-MratinEDCurves
atu 64 A ur L LEADe OUNT g
1N6864 Axial Lead Mounted
3.5
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Legend
(Top to Bottom)
3
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Vr=10V
Vr=20V
2.5
Vr=40V
Vr=60V
Vr=80V
2
1.5
1
0.5
0
25
50
75
100
125
150
Sinewave Operation 50% Duty Cycle
Tl ((°C) (Lead 3/8"/) ")
T ēC) (Lead = 3 8
Sinewave Operation 50% Duty Cycle
L
Thermal Resistance Junction to Lead 3/8" = 30.0ēC/W
RθJL = 30.0°C/W
NOTES:
1. This is the true inverse of the worst case thermal resistance value. All devices are capable of operating ≤ TJ
specified on this curve. Any parallel line to this curve will intersect the appropriate power for the desired
maximum TJ allowed.
2. This temperature-current derating curve varies with applied voltage.
FIGURE 6. Temperature current derating for 1N6864.
14
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