Bourns 適合RS-485接口的氣體放電管
Bourns氣體放電管(GDT)適合RS-485接口，專為符合RS-485接口界面的行業標準而設計，可在高雜訊和嚴格的電氣環境下提供電路保護。對於可能出現大量和快速的瞬衝電流，而又不容許出現故障的外露線，建議使用三段式Bourns保護系統。此系統包括TVS二極管 ()、TBU™裝置()以及一個或以上的GDT。每個裝置都提供獨特的保護功能。經採用此分層式保護方案後，TVS陣列獲得TBU裝置的全面保護，而TBU裝置則完全受到快速的GDT保護。 浪湧保護的限制僅在於GDT本身的性能。Bourns GDT適合RS-485接口，能承受極高電流，並與TBU裝置協調合作來提供極快的電壓保護，同時也保護TBU裝置在觸發後免受過高電壓破壞。
It consists of TVS Diodes (CDSOT23-SM712), TBU™ Devices (TBU-CA065-100-WH), and one or more GDTs. Each device contributes a unique protection function. Due to the layered protection scheme, the TVS array is fully protected by the TBU device and the TBU device is fully protected by the fast GDT. The limits of surge protection are then those of the GDT itself. The Bourns GDT for RS-485 Ports handles extremely high currents and coordinates with the TBU device to provide extremely fast voltage protection, as well as protection the TBU device from excessive voltage after it triggers.
特點
- Meets industry standards for RS-485 port interfaces
- SMD
- Three-stage Bourns protection system
應用
- RS-485 Systems
- Process control architectures
- Closed-loop systems
- Noisy, harsh electrical environments
Block Diagram
Schematic
Additional Resource
影片
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