In the field of electronic circuit protection, plug-in varistors have become indispensable components due to their excellent overvoltage absorption ability and fast response characteristics. Faced with the diverse and complex models in the market, a comprehensive list of plug-in varistor models is a key basis for engineers to efficiently select. This article will outline the mainstream series models and their application scenarios for you.
Overview of mainstream plug-in varistor model series
MYG series: This is one of the most widely used universal plug-in varistor models. We offer multiple diameters (such as 07D, 10D, 11D, 20D) and voltage specifications, with core parameters being voltage sensitivity and current carrying capacity. Suitable for basic overvoltage protection such as power inlet and AC/DC circuits. For example, MYG10D471K represents a diameter of 10mm, a pressure-sensitive voltage of 470V, and an error of ± 10%.
MYH series: designed for scenarios that require higher current capacity and stronger surge resistance, it belongs to high-energy plug-in varistors. Common models include MYH14DXXXK. Commonly used in harsh environments such as lightning protection modules and industrial equipment power ports.
14D series/20D series: Universal plug-in varistor models directly named after standard diameters, such as 14D471K and 20D681K. The numbers “14” and “20” represent the diameter of the component body (in millimeters), and subsequent letters and numbers represent electrical parameters. This type of plug-in varistor model is widely popular due to its standardized size and rich parameter selection.
07D/10D series: Representative models of miniaturized plug-in varistors, suitable for circuit board designs with limited space, such as consumer electronics products and low-power power adapters.
Application scenario analysis of plug-in varistor models
The selection of suitable plug-in varistor models should be closely combined with application requirements:
Power protection: The AC/DC power input port is the core application area of plug-in varistors. MYG series, 11D series, and 20D series are common choices, and the models need to match the power supply voltage (such as MYG14D431K for primary protection of 220V AC power supply).
Home appliance control board: Space and cost considerations need to be taken into account, and miniaturized 07D, 10D series or standard 11D series plug-in varistor models are often used.
Industrial equipment and lightning protection: Faced with stronger surge impacts (such as lightning induction), high-energy MYH series plug-in varistors (such as MYH20DXXXK) or large-sized 20D series are more reliable choices.
Key parameters for selection and a comprehensive list of varistor models for plugins, including their value
When consulting the complete list of plug-in varistor models, pay special attention to:
Voltage sensitive (V1mA): It must be higher than the peak voltage of the normal operating voltage of the circuit.
Maximum continuous operating voltage: Ensure long-term stability.
Current capacity (8/20 μ s): determines the ability to absorb surge energy, with significant differences among different models.
Package size: such as 07D, 10D, 11D, 20D, etc., must meet the PCB space requirements.
A comprehensive list of plug-in varistor models can help you quickly compare the electrical parameters and physical specifications of different series (such as MYG, MYH, 11D, 20D, 07D, 10D), making it an efficient tool for optimizing circuit protection design and improving product reliability. Based on actual voltage, surge level, and space limitations, accurately match the model to provide the best overvoltage protection barrier for your electronic devices.
