What does electronic product reliability test include? What are the tests?

Date：2022-06-06 15:43:00Views：1137

Reliability test is an activity to evaluate the functional reliability of products in the specified service life and all environments (such as expected use, transportation or storage). It refers to exposing products to natural or artificial environmental and economic conditions to undergo their effects, so as to evaluate the performance of enterprise products under the environmental conditions of actual use, transportation and storage, and analyze problems to study the impact of environmental factors and their important mechanism.

Reliability test mainly includes:

1. climatic environment test: high and low temperature test, high and low temperature alternating test, rapid temperature change test, low pressure test and protection grade test;

2. salt spray test: neutral salt spray, acid salt spray, copper accelerated salt spray and circulating salt spray.

3. mechanical test: vibration test (random vibration, sweep frequency vibration), mechanical impact test and drop test.

4. mechanical system performance test: tensile performance, bending performance, compression production performance, pendulum impact.

5. thermal performance test: thermal deformation temperature, Vicat softening point and melting index.

6. electrical system performance: dielectric strength, insulation material resistance, contact resistance, grounding influence resistance, voltage drop.

7. material test: Xenon lamp aging test, fluorescent lamp aging test, material shore hardness, pencil hardness, chemical resistance, color difference, gloss, adhesion and adhesion.

Classification method of reliability test:

1. if divided by environmental development conditions, it can be divided into simulation system test and field test under various stress conditions;

2. the test items can be divided into environmental test, life test, accelerated test and various special tests

3. if it is divided according to the purpose of test research, it can be divided into screening test, identification system test and acceptance pass test;

4. according to the nature of the test, it can also be divided into destructive test and non-destructive test.

Reliability test standard

Reliability test

1. lower temperature limit operation testThe test sample shall be powered on to run the test procedure for preliminary test. Under the condition that the test sample does not work, gradually reduce the temperature in the box to 0 ℃. After the temperature is stable, power on and run the test procedure for 5h. The function and operation of the test sample should be normal. After the test, take out the sample after the box temperature returns to room temperature and recover for 2h under normal atmospheric pressure.

Recommended inspection standard: the function and operation of the tested sample shall be normal without obvious deviation in appearance.

2. low temperature storage testPut the sample into the low-temperature box to reduce the box temperature to -20 ℃, store it for 16h under the condition that the test sample does not work, take out the sample to return to room temperature, and then restore it for 2h, power on and run the test procedure for inspection. The function and operation of the test sample should be normal without obvious deviation in appearance. In order to prevent the test sample from frosting and condensation during the test, the test sample is allowed to be sealed with polyethylene film before the test. If necessary, the moisture absorbing agent can also be installed in the sealing sleeve.

Recommended inspection standard: the function and operation of the tested sample shall be normal without obvious deviation in appearance.

3. upper temperature limit operation testThe test sample shall be subject to preliminary test first. When the test sample is not working, gradually raise the temperature of the box to 40 ℃. After the temperature is stable, power on and run the system diagnostic program for 5h. The function and operation of the test sample should be normal. After the test, when the box temperature returns to room temperature, take out the sample and recover for 2h under normal atmospheric pressure.

Recommended inspection standard: the function and operation of the tested sample shall be normal without obvious deviation in appearance.

4. high temperature storage testPut the sample into the high-temperature box to raise the box temperature to 55 ℃, store it for 16h under the condition that the test sample is not working, take out the sample and return to room temperature for 2h.

Recommended inspection standard: the function and operation of the tested sample shall be normal without obvious deviation in appearance.

The above contents are related to the reliability test of electronic products compiled by the creative core testing team. I hope they can help you. Chuangxin testing is a professional testing organization for electronic components. At present, it mainly provides testing services for integrated circuits such as capacitors, resistors, connectors, MCU, CPLD, FPGA, DSP, etc. Specialized in functional testing of electronic components, incoming appearance testing of electronic components, anatomical testing of electronic components, acetone testing, X-ray scanning testing of electronic components, and RoHS component analysis testing. Welcome to call, we will serve you wholeheartedly!