What is IEC 60738-2-9:2018?

IEC 60738-2-9:2018 is an international standard published by the International Electrotechnical Commission (IEC). It sets forth specifications and requirements for quartz crystal resonators of assessed quality for use in electronic devices. This standard covers a range of technical aspects, including electrical, mechanical, and environmental characteristics of these resonators.

Electrical Characteristics

The standard defines various electrical characteristics that must be met by quartz crystal resonators to ensure reliable performance in electronic devices. These include frequency tolerance, frequency stability, frequency aging, equivalent series resistance, load capacitance, and insulation resistance. These parameters play a crucial role in determining the overall accuracy and reliability of the crystal resonators.

Mechanical Characteristics

In addition to electrical requirements, IEC 60738-2-9:2018 specifies several mechanical characteristics for quartz crystal resonators. These include dimensions, lead spacing, lead length, and mounting conditions. The aim is to ensure compatibility with different electronic device designs and provide guidelines for proper installation and handling of the resonators.

Environmental Testing

The standard also outlines specific environmental tests to assess the robustness of quartz crystal resonators. These tests subject the resonators to various challenging conditions such as temperature cycling, mechanical shock, vibration, humidity, and soldering heat resistance. By undergoing these tests, the resonators can demonstrate their ability to withstand harsh operating environments without compromising their performance.

Overall, complying with IEC 60738-2-9:2018 ensures that quartz crystal resonators meet the necessary quality standards and perform optimally in electronic devices. Manufacturers, engineers, and designers rely on this standard to select and implement quartz crystal resonators that meet their device's requirements and deliver accurate and reliable performance over time.