Entering MIL-HDBK-217 Inductors
The following table describes the part parameters required for inductors when a MIL-HDBK-217 model is selected for the calculation. MIL-HDBK-217 models support all but the Chip subcategory of inductors.
Parameter
Type
Description
Quality Level
Choice List
The quality screening level used in the manufacturing of the device. The quality screening level used in the manufacturing of the device. Choices vary by subcategory. For more information, see MIL-HBDK-217 Quality Levels.
Type
Choice List [Parts Count also]
The type of device. Choices vary by subcategory.
Max Rated Temp
Choice List [FN1 only]
The maximum rated temperature of the device. Information about maximum rated temperatures for insulation classes follows this table.
Temp Rise to Hot Spot
Real (Degrees C)
The temperature rise from the subassembly to the hot spot temperature.
Hot Spot Temperature
Real (Degrees C)
Generally, this field is left at #.# so that the hot spot temperature is calculated as follows:
Hot Spot Temperature = Subassembly Temperature + Temperature Rise to Hot Spot
If you enter a value for this parameter, this value is used in place of a calculated hot spot temperature.
[Derating Parameters]
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For more information, see Derating Parameters.
Maximum Rated Temperatures
The following table provides the maximum rated temperatures for insulation classes for various specifications.
Specification
Insulation Class
MIL-T-27
Q
R
S
V
T
U
MIL-T-21038
Q
R
S
T
U
V
MIL-T-55631
O
A
B
C
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Max Rated Temp. (Degrees C)
85
105
130
155
170
170