application background
1 Global warming, more thunderstorms.
2 Network equipment is easily damaged by lightning, which is extremely harmful.
3 The maintenance cost of network equipment after being damaged by lightning is high
4 Network equipment with high surge protection capability has become an industry trend
Program description and precautions
1 In this solution, GDT is used for common-mode (eight-wire) surge protection at the front end of the transformer.
2 The low-junction capacitance TVS removes the differential mode energy at the back end of the transformer, while TVS is used for electrostatic protection, and the response time is fast
3 Complies with 802.11 electrical standards.
4 Satisfy IEC61000-4-5, GBT17626.5 and other surge test standards.
5 Meet static test standards such as IEC61000-4-2 and GBT17626.2.
application
1 Industrial/home computer/laptop
2 Switch/router
3 Network printer
4 Set-top box
5 Intelligent transportation system
6 Other electronic equipment with Ethernet port
Protection circuit diagram
PulseTake Protector
GDT: PSA201N: 200V±30%, 0.5KA, < 0.5pF, 1GΩ.
GDT: PTC151N: 150V±20%, 2.0KA, 0.8pF, 1GΩ.
TVS1/TVS2/TVS3/TVS4: PT3C031L: Vb: 4.0V, Vrwm: 3.0V, 1.2pF, SOD-323
