WRR-441 WRR-442 WRR-443 WRR-520 WRR-521 type B thermocouples
WRR-441 WRR-442 WRR-443 WRR-520 WRR-521 type B thermocouples, resistor reliability, reliability is an important indicator of resistors. With the development of cutting-edge technology, some complex systems require a large number of resistors, so the reliability of resistors is an important factor to ensure the normal operation of the system.
l Technical performance and reliability:
Product technical performance and reliability are two different concepts. Technical performance refers to the ability to perform specific functions. For example, resistors have basic characteristics such as rated power consumption, resistance accuracy, and temperature characteristics. Reliability refers to the degree to which the technical performance is achieved or reached. It should be considered as such. ; Regardless of the reliability of the product, its technical indicators can not be talked about. The reliability index of the product has important differences from the technical index of the product. The technical indicators can be checked by instrument testing, and the reliability of the product cannot be checked by instrument. It is only available after a long period of testing on a large number of products.
The meaning of reliability:
The ability of a product to perform a specified function under specified conditions and within a specified time is called reliability. The so-called specified conditions refer to the environmental and working conditions of the product. The reliability of the same product under different conditions is also different. Environmental conditions include climatic conditions. Mechanical environment (shock, vibration, centrifugation, etc.). Working conditions include load size and working conditions. Mode (continuous work or intermittent work).
l Failure rate:
After a product works to a certain moment, the probability of failure in unit time is called failure rate.