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Application scenarios of signal SPDs in series and parallel connection Series connection Jan 06 , 2026
Series connection This mode connects the SPD directly in series with the signal transmission channel, so that the surge current and signal flow share the same path. Its core value lies in ensuring the integrity of high-speed signals: Applicable scenarios: High-bandwidth systems such as Gigabit Ethernet (≥1Gbps), USB 3.0+, HDMI 2.0, 3G-SDI video, and radio frequency (RF). These scenarios require im...
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When a thunderstorm occurs, is it better to stay as far away from large trees as possible in open areas outdoors? Jan 14 , 2026
Most people know that you shouldn't stand under a large tree during a thunderstorm. Searching online for similar questions often yields answers like "stay away from isolated large trees" or "the farther away from trees, the better," as these types of accidents are most common. However, these statements are not entirely accurate and are somewhat one-sided. In open areas, isolated large trees act li...
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What are the differences between Single-port SPD and two-port SPD? Jan 22 , 2026
The distinction between single-port and two-port surge protective devices (SPDs) is essentially a professional classification based on their circuit topology and connection method within the circuit. A single-port SPD exhibits a parallel connection structure in its electrical configuration, with all its external terminals directly connected in parallel to the protected power or signal lines. The i...
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- ac surge protection device
- dc surge protector
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