Parameter
|
Type
|
Description
|
---|---|---|
Foreign
|
Checkbox [Parts Count also]
|
Indicates whether the device is made in China. If this checkbox is selected, the failure rate of the part is calculated based on Appendix A for the 299C Parts Count or Parts Stress model chosen.
|
Quality Level
|
Choice List [Parts Count also]
|
Not required by the Trimmer, Var NonWW (RJ, RJR) subcategory unless Foreign is selected.
The appropriate quality screening level of the device. Accepted quality levels and values for variable resistors follow. For the quality value assigned to a specific variable resistor, see Chinese Standard GJB/z 299C.
• A1 = 0.10
• A2 = 0.30 or 0.40
• B1 = 0.50 or 0.60
• B2 = 1.00
• C = 4.00 or 6.00
|
Resistance
|
Real
|
Not required by the Trimmer, Var NonWW (RJ, RJR) subcategory unless Foreign is selected.
The resistance value of the device. This parameter is used in conjunction with Units to enter the resistance value.
|
Units
|
Choice List
|
Not required by the Trimmer, Var NonWW (RJ, RJR) subcategory unless Foreign is selected.
The units for the Resistance value. Choices are:
• ohm
• Kohm (ohm * 1000)
• Mohm (ohm * 1E6)
|
Type
|
Choice List
|
Not required by the following subcategories of variable resistors: Lead Screw, Var WW (RT, RTR) and Trimmer, Var NonWW (RJ, RJR). Also not required when Foreign is selected.
Identifies the type of variable resistor. The choices vary by subcategory.
|
Construction Type
|
Choice List
|
Not required by the following subcategories of variable resistors: Glass Glazed, Var; Lead Screw, Var WW (RT, RTR); Precision, Var NonWW (RQ); Semiprec, Var WW (RA, RK); and Trimmer, Var NonWW (RJ, RJR). Also not required when Foreign is selected.
The construction class of the resistor. Choices are:
• Non-Seal
• Seal
|
Number of Taps
|
Integer
|
Not required by the Trimmer, Var NonWW (RJ, RJR) subcategory. Also not required when Foreign is selected.
The number of potentiometer connections, including the wiper and end termination.
|
[Power Parameters]
|
Real (Watts)
|
Not required by the Trimmer, Var NonWW (RJ, RJR) subcategory.
For more information, see Power Parameters.
|
[Temperature Parameters)
|
Real (Degrees C)
|
Not required by the Trimmer, Var NonWW (RJ, RJR) subcategory.
For more information, see Basic Temperature Parameters.
|
[Derating Parameters]
|
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|
For more information, see Derating Parameters.
|