Signal surge protective device (SPD) is actually a signal lightning arrester, which is installed in series in the signal transmission line, usually at the front end of the equipment, to protect the subsequent equipment-all kinds of signal lines and equipment, and prevent lightning waves from influencing the signal line and damaging the equipment.
The main functions of signal surge protective device:
Limit the transient overvoltage caused by the induced lightning in the signal line. According to surveys, more than 80% of lightning strikes in electronic systems are caused by induced lightning. Therefore, the wide application of microelectronic equipment in modern society should strengthen the lightning protection of electronic systems and install suitable signal surge protectors.
Limit the surge caused by the start and stop of the electronic system. In addition to the lightning induction caused by the surge in the signal line, the most important reason is the start and stop of the electronic equipment. This kind of surge is widespread. The installation of a suitable signal surge protector on the line can effectively suppress the surge caused by the operation of the electronic system, and can effectively reduce the deterioration and failure of electronic sensitive components, and ensure the signal line The stability, prolong the service life of electronic equipment.
Signal surge protectors can be divided into network signal surge protectors, monitoring signal surge protectors, control signal surge protectors, video signal surge protectors, telephone signal surge protectors according to different types of protected lines, explosion-proof signal surge protectors and many other types, each type has many models, parameters and different appearances.
As a well-known surge protection supplier, we provide you with all models and first-class quality products. In addition, if you are interested, you can learn about our other series of products, such as power supply protection devices, lightning protection box, etc
Signal lightning arresters enhance data integrity by shielding communication lines and equipment from voltage spikes. They help in the following ways:
Preventing Data Corruption: They absorb or divert electrical surges, protecting data lines from voltage spikes that could corrupt or lose data.
Maintaining Signal Quality: By filtering out noise and stabilizing voltage levels, they ensure that the data being transmitted remains accurate and reliable.
Protecting Equipment: They prevent damage to sensitive equipment, reducing the risk of data loss or system downtime.
Ensuring Consistent Data Flow: By preventing surges, they reduce interruptions and errors in data transmission, ensuring a continuous and error-free flow of information.
Know the Signal: Identify the type and voltage level of the signal you need to protect (e.g., Ethernet, coaxial).
Assess the Environment: Consider how exposed your location is to surges (e.g., lightning-prone areas) and whether the SPD will be installed indoors or outdoors.
Check Response Time: Look for a fast-acting SPD to protect your system quickly.
Clamping Voltage: Ensure the SPD’s clamping voltage is suitable—high enough to avoid false triggers but low enough to protect your equipment.
Surge Capacity: Choose an SPD with a high peak surge current rating to handle large surges.
Maintain Signal Quality: Make sure the SPD doesn’t degrade your signal.
Compliance: Verify that the SPD meets industry standards for safety and performance.
Ease of Maintenance: Consider SPDs with status indicators or monitoring features.
Choose a Trusted manufacturer: Go with reputable manufacturers that offer warranties and good customer support.
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