MIL-PRF-19500/408K
Temperature-Power Derating Curve
TC=25°C 2N3715, 2N3716
140
120
100
80
60
40
20
0
25
50
75
100
125
150
175
200
225
DC Operation
Tc (ºC) (Case)
Thermal Resistance Junction to Case = 1.5ºC/W
Note: Max Finish-Alloy Temp = 175.0ºC
NOTES:
1. All devices are capable of operating at ≤ TJ specified on this curve. Any parallel line to this curve will
intersect the appropriate power for the desired maximum TJ allowed.
2. Derate design curve constrained by the maximum junction temperature (TJ ≤ +200°C) and power rating
specified. (See 1.3 herein.)
3. Derate design curve chosen at TJ ≤ +150°C, where the maximum temperature of electrical test is
performed.
4. Derate design curves, chosen at TJ ≤ +125°C and 110°C to show power rating where most users want to
limit TJ in their application.
FIGURE 2. Temperature-power derating graphs for device types 2N3715 and 2N3716.
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