MIL-PRF-19500/420M
1.3.2 Maximum ratings. Continued.
(1)
Barometric pressure reduced:
1N5550, 1N5551, 1N5552: 8 mm Hg (100,000 feet);
1N5553, 1N5554: 33 mm Hg (70,000 feet).
Derate linearly at 22.2 m/A /°C from +55°C +100°C
(2)
For the 3A rating at 55°C ambient and the 2A rating at 100°C ambient, these IO ratings are for a thermally
(3)
(PC boards or other) mounting methods where the lead or end-cap temperatures cannot be maintained as
shown in col. 3 and where thermal resistance from mounting point to ambient is still sufficiently controlled
where TJ(MAX) in 1.3.1 is not exceeded. This equates to RθJX ≤ 47ºC/W in col. 9. Also see application notes
in 6.5.1.
Derate linearly at 26.7mA/°C above TL= +100°C to +175°C ambient.
(4)
See figure 8.
* (5)
* (6)
See figure 9.
1.4 Primary electrical characteristics. Unless otherwise specified, TA = +25°C.
IR2 at TA = +125°C,
IR1,
pulsed VR ≤ 20 ms
VF1 at IF = 9.0 A(pk)
Type
pulsed VR ≤ 20 ms
1 percent duty cycle,
8.3 ms max pulse width
µA dc (max) at VR (V dc)
µA dc (max) at VR (V dc)
Min V(pk)
Max V(pk)
0.6
1.2
1.0
200
60
200
1N5550, US
0.6
1.2
1.0
400
60
400
1N5551, US
0.6
1.2
1.0
600
60
600
1N5552, US
0.6
1.3
1.0
800
60
800
1N5553, US
1N5554, US
0.6
1.3
1.0
1,000
60
1,000
2
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