Reliability Testing refers to simulating the actual usage, transportation and storage environments of products throughout their full life cycle, to test the capability of a product to perform specified functions under prescribed conditions within a specified period. Its core is to verify the stability, durability and failure resistance of products. It is widely applied in industries such as electrical and electronics, automotive, aerospace, semiconductors and medical devices.

Core Objectives:

1. Early Defect Identification: Discover potential defects in design, materials and processes during product R&D or before mass production, so as to avoid large-scale failures after mass launch.

2. Performance Compliance Verification: Confirm whether products meet reliability requirements specified in industry standards, internal corporate standards or customer technical agreements.

3. Product Design Optimization: Guide design improvements using test data to extend product service life and enhance environmental adaptability.

4. Market Access Support: For products in certain industries (automotive, medical, military, etc.), reliability test reports are required as supporting documents for product certification and market access.

Main Test Categories:

Based on simulated environments and testing purposes, reliability testing can be divided into the following categories:

1. Environmental Reliability Testing

• Simulate impacts of natural environments such as temperature & humidity, air pressure, salt spray, mold and sand & dust on products.

• Common items: Temperature Cycling Test, Temperature-Humidity Alternating Test, Salt Spray Corrosion Test, Water Spray & Dust Proof Test, Low Air Pressure Test.

2. Mechanical Reliability Testing

• Simulate mechanical stress including vibration, shock, drop and collision during transportation, installation and operation.

• Common items: Random Vibration Test, Sine Vibration Test, Shock Test, Drop Test, Plugging & Unplugging Endurance Test.

3. Electrical Reliability Testing

• Verify product stability under electrical stress, applicable to electronic components, circuit boards, power supplies and other products.

• Common items: High-Low Voltage Surge Test, Insulation Resistance Test, Withstand Voltage Test, Electromagnetic Compatibility (EMC) Test, Cyclic Aging Test.

4. Lifetime Reliability Testing

• Rapidly evaluate product service life via accelerated aging methods.

• Common items: Accelerated Life Test (ALT), Constant Stress Test, Step Stress Test, Fatigue Life Test.