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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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2031-23T-SM-RPLF датащи(PDF) 1 Page - Bourns Electronic Solutions |
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2031-23T-SM-RPLF датащи(HTML) 1 Page - Bourns Electronic Solutions |
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1 / 2 page  RS-485 Port Protection Evaluation Board 1 10/12 • FU1213 RS-485 Evaluation Board Bill of Materials Table 1 No. Part Number Qty. Description Reference 1 TBU-CA065-200-WH 2 TBU® Single Bidirectional Line 650 V 200 mA TBU® HSP 1, TBU® HSP 2 2 2031-23T-SM-RPLF 2 Single Line Fast-acting GDT 650 V GDT1, GDT2 3 SMBJ12CA 2 Single Bidirectional Line TVS 12 V SMB TVS1, TVS2 Introduction This Evaluation Board serves as an aid in evaluating circuit protection on RS-485 serial device ports, using two Bourns® TBU® High-Speed Protectors (HSP), two fast-acting GDTs and two TVS diodes to meet the required industry standards on RS-485 port interfaces. The recommended Bourns® TBU® device solution, with a low capacitance GDT, offers enhanced high-speed performance features over competing technologies, which can help the design engineer increase the surge and transient protection level on RS-485 ports and place the entire circuit protection solution into a smaller reduced PCB area. Bourns has developed an RS-485 Evaluation Board (measuring 45 mm x 21 mm x 1.2 mm) manufactured using FR4 PCB with nickel gold plating on the top and bottom sides. How to Connect the Evaluation Board for Test Set-up • Connect IN1 and IN2 to the exposed lines. • Connect OUT1 and OUT2 to the RS-485 IC device. * The default configuration of this board uses 2 GDTs (GDT1, GDT2) and discrete SMB TVS diodes (TVS1,TVS2). The board allows different configurations: • 2 single 2031 GDTs (GDT1 and GDT2) may be replaced by a dual 2030 GDT (GDT3) • 2 SMB TVS diodes (TVS1 and TVS2) may be replaced with a) 2 SOT23 TVS diodes (TVS3, TVS4) or b) a single TVS diode array (TVS5) RS-485 Evaluation Board Top Side Layout* RS-485 Evaluation Board Schematic Figure 2 Figure 1 1 TBU® HSP 1 IN1 IN2 GND OUT1 OUT2 GND TVS5 TVS3 TVS4 TVS1 TVS2 GDT3 GDT1 GDT2 TBU® HSP 2 1 1 3 2 1 3 2 1 3 3 2 1 12 1 11 2 1 |
Аналогичный номер детали - 2031-23T-SM-RPLF |
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Аналогичное описание - 2031-23T-SM-RPLF |
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ссылки URL |
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