MIL-PRF-39015 Revision E Amendment 4 (all previous amendments incorporated):2019
Current
The latest, up-to-date edition.
Resistor, Variable, Wirewound, (Lead Screw Actuated), Nonestablished Reliability, and Established Reliability, General Specification for
English
08-08-2019
This specification covers the general requirements for nonestablished reliability (non-ER) and established reliability (ER), lead screw actuated; wire wound variable resistors with a contact bearing uniformly over the surface of the entire resistive element, wound linearly, when positioned by a multiturn lead screw actuator. These resistors are capable of full load operation (when the maximum resistance is engaged), at a maximum temperature of 85ºC and are capable for continuous operation, when properly derated, at maximum temperature of 150ºC (see 3.6), with a resistance tolerance of ±5 percent. The ER resistors have life failure rate (FR) levels ranging from 1.0 percent to 0.001 percent per 1,000 hours (see 1.2.1.4). These FR levels are established at a 60 percent confidence level on the basis of life tests.
| DocumentType |
Standard
|
| Pages |
36
|
| ProductNote |
THIS STANDARD IS ALSO REFER TO SAE-EIA-554-1,SAE-EIA-557
|
| PublisherName |
US Military Specs/Standards/Handbooks
|
| Status |
Current
|
| Supersedes |
This specification covers the general requirements for nonestablished reliability (non-ER) and established reliability (ER), lead screw actuated; wire wound variable resistors with a contact bearing uniformly over the surface of the entire resistive element, wound linearly, when positioned by a multiturn lead screw actuator. These resistors are capable of full load operation (when the maximum resistance is engaged), at a maximum temperature of 85ºC and are capable for continuous operation, when properly derated, at maximum temperature of 150ºC (see 3.6), with a resistance tolerance of ±5 percent. The ER resistors have life failure rate (FR) levels ranging from 1.0 percent to 0.001 percent per 1,000 hours (see 1.2.1.4). These FR levels are established at a 60 percent confidence level on the basis of life tests.
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