MILPRF19500/624E
Temprature-Power derating curve
2N7370
120
100
80
(See note 1)
60
(See note 2)
40
(See note 3)
(See note 4)
20
(See note 4)
0
25
50
75
100
125
150
175
200
225
(Case)
Tsink (ºC)
DC Operation
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 graph for device type 2N7370.
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