JY-SEMICON

The P/N junction area of ESD (TVS) devices is larger than that of Zener diodes, resulting in ESD (TVS) devices not only having stronger high-voltage tolerance, but also greatly reducing the voltage cut-off rate . ESD (TVS) devices have a better effect on the safety protection of low operating voltage circuits of handheld devices. Comparison of TVS and ceramic capacitors: surface mount ceramic capacitors can also be used for ESD protection, which is cheap and simple; but the high voltage withstand capacity of ceramic capacitors is weak, 5kV high voltage can make 10% of ceramic capacitors invalid; 10kV high voltage can make 60% Ceramic capacitors fail. According to the IEC61000-4-2 standard, for the use of general handheld devices, each connector must withstand a contact impulse voltage greater than 8kV. Since ESD (TVS) can withstand a voltage of 15kV, ESD (TVS) is more suitable for handheld devices, effectively ensuring the pass rate and reliability of the final product. Comparison of T...

1. Can TVS be used in series? Theoretically speaking, when the Vrwm of a single TVS device cannot be satisfied, it can be used in series. The Vrwm and Vbr of the whole circuit are respectively equal to the sum of the corresponding parameters of the two TVS devices. While Ipp and Pppm did not change much.   However, in practical applications, due to the large parameter range of TVS devices, the transient action time of TVS devices is not necessarily the same. Even if the same type of TVS devices are used in series, it may be difficult to guarantee their Parameter consistency, theoretical voltage superposition may not be possible in practice, and it is usually not recommended to use in series. 2. Can TVS be used in parallel? It is very rare to use TVS devices in parallel. In principle, parallel connection can increase the protection Ipp and Pppm, but in fact it is used in combination with TVS devices and other protective devices (such as pressure sensitive or gas discharge tubes); us...

 September brings a constant stream of new product releases in the smartphone market, putting the spotlight on the indispensable ESD protection components for phones. Interested in an ESD component selection guide? Look no further! September's smartphone arena is buzzing with excitement. First, the Huawei Mate 60 Pro made a thunderous entrance, selling out in a flash and announcing its not to sell overseas. Next up, the iPhone 15 series is slated to launch on September 13th, featuring the power-efficient A17 chip, low power consumption, and the shift to USB-C connectors for both phone charging and headphones. Currently, this series has seen a price increase. Some users have voiced a preference for a slightly smaller screen on the Huawei Mate 60 Pro, making it more pocket-friendly. Don't worry, on August 29th, OPPO unveiled the Find N3 Flip pocket-sized smartphone – it's lightweight, user-friendly, and perfect for capturing stunning shots on the go. Equipped with the MediaTe...