To calculate the failure rate and MTBF of a resistor using the MIL-HDBK-217F failure model, thermistor or variable resistor, enter its parameters in the following table.
(1) Established reliability styles are failure rate graded (S, R, P, M) based on life testing defined in the applicable military device specification. This category applies only to three-letter styles with an "R" suffix, such as RCR or RLR. Also see the quality table.
(2) Resistor Case Temperature. Can be approximated as ambient component temperature for low power dissipation non-power type resistors.
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Which sampling plans are you using for attribute data?
A batch is a collection of items from which a sample will be drawn, for deciding on its conformance to the acceptance inspection. A batch should include items of the same type, size, etc. and that were produced under the same production conditions and time.
The batch size is the number of items in a lot or a batch.
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