RJ45 connector features and applications!

RJ45 connector features: lightning surge protection standard IEC 61000-4-5, surge protection capacity of 10/700US-5/320us combined wave difference mode 4 kv, common mode 6 kv, ESD protection standard IEC 61000-4-2, it meets the requirements of 1500V AC & 2250V DC 6s 1mA voltage withstand test, high reliability, high temperature 85 ° C test, low clamp voltage and fast response (< 1ns) Small size, more complex than the original network port protection and application circuit can minimize the occupation of PCB board space;

Application of RJ45 connector: Industrial Control Automation Communication, security products PC, Smart TV smart home intelligent instrument new energy control system (solar, wind, etc.) Internet of things, Smart city control systemWith the rapid development of science and technology, the trend of everything connected to the Internet has become inevitable, and network ports are also appearing more and more on electronic products, the network port needs to achieve certain lightning surge protection ability because of its long-distance transmission and the outdoor and electromagnetic environment, the conventional network protection scheme is to add a 1:1 isolating transformer between RJ45 connector and PHY chip to protect the differential mode surge and enhance the signal However, the PHY chip is easily damaged by the pulse peak voltage coupled to the secondary by the network transformer without protective devices There are many applications in the field because of the consideration of cost, layout space and other factors do not join the common-mode protection, common-mode voltage and easy to cause back-end chip damage and system restart, crash and other phenomena, this kind of situation inevitably brings certain hidden trouble to the stability and reliability of follow-up products.