Product Information

RS-485EVALBOARD2

RS-485EVALBOARD2 electronic component of Bourns

Datasheet
Other Development Tools TVS/TBU/MOV Eval Board
Manufacturer: Bourns
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 18.1785 ea
Line Total: USD 18.18

25 - Global Stock
Ships to you between
Fri. 10 May to Tue. 14 May
MOQ: 1  Multiples: 1
Pack Size: 1

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9 - Warehouse 1


Ships to you between Fri. 10 May to Tue. 14 May

MOQ : 1
Multiples : 1
1 : USD 17.2551

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Manufacturer
Product Category
RoHS - XON
Icon ROHS
Product
Type
Tool Is For Evaluation Of
Packaging
Description/Function
Dimensions
Brand
Interface Type
Cnhts
Hts Code
Mxhts
Product Type
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Additional Infomation About Product

RS-485 Port Protection Evaluation Board 2 Introduction This evaluation board serves as an aid in Line A Unprotected 40 mils traceProtected Load A 2 1 2 2 evaluating circuit protection on RS-485 1 III 1 1 TBU HSP 1 serial device port solutions using Bourns 3 NU J1 J3 TVS1 TVS3 MOV1 GDT1 TISP1 2 I II TBU High-Speed Protector (HSP), MOV TVS5 1 3 3 and TVS products to meet the required GDT3 2 II I industry standards on RS-485 port 2 3 NU TVS2 TVS4 MOV2 GDT2 TISP2 interfaces. The recommended Bourns 1 II I 1 1 TBU HSP 2 TBU HSP solution oerff s enhanced 12 2 2 Line B Unprotected 40 mils traceProtected Load B performance features over competing J2 J4 technologies, which can help the design Figure 1 RS-485 Evaluation Board 2 Schematic engineer to increase the surge & transient protection level on RS-485 ports and place the entire circuit protection solution into a smaller PCB area. Bourns has developed a RS-485 evaluation board (measuring 50 mm x 25 mm x 1.2 mm) manufactured using FR4 PCB with nickel gold plating on top and bottom sides. How to Connect the Evaluation Board for Test Set-up Connect J1 and J2 to the exposed lines. Connect J3 and J4 to the RS-485 IC device. Figure 2 RS-485 Evaluation Board 2 Top Side Layout* * In addition to the two TBU HSPs, the default Table 1 RS-485 Evaluation Board 2 Bill of Materials congfi uration of this board uses two MOVs (MOV1, MOV2) and a single TVS diode array (TVS5). The board allows dierff ent congfi urations: No. Part Number Qty. Description Reference 2 MOVs (MOV1 and MOV2) may be replaced by a) 2 single 2031 GDTs (GDT1 and GDT2) 1 TBU-CA065-300-WH 2 TBU Single Bidirectional Line 650 V 300 mA TBU HSP 1, TBU HSP 2 or b) a dual 2030 GDT (GDT3, not yet released) 1 TVS diode array (TVS3) may be replaced with 2 MOV-10D201K 2 Single Line 10 mm MOV 200 V MOV1, MOV2 a) 2 SMB TVS diodes (TVS1, TVS2) or b) 2 SOT23 TVS diodes (TVS3, TVS4) or c) 2 SOT23-5 thyristor 3 CDSOT23-SM712 2 Dual Bidirectional Line 7 V / 12 V TVS5 devices (TISP1, TISP2) 5/11 FU1107 1 2 21 21 12 21RS-485 Port Protection Evaluation Board 2 Performance Graphs Run T Trig PreVu T Trig T T Ch1 Max Ch1 Max 545 V 329 V Ch1 Min Ch1 Min 1 1 4 4 -20.5 V -390 V Ch4 Max Ch4 Max 11.3 mA 1.98 A Ch4 Min Ch4 Min -81.1 mA -2.55 A Ch1 500 V MA10.0 ns Ch1 -380 V Ch1 200 V MA400 ns Ch1 116 V Ch4 5.00 A Ch4 1.00 A T 20.40 % T 31.60 % Ch 1: input voltage / surge / fault to TBU HSP Ch 1: input voltage / surge / fault to TBU HSP The ohm unit following the current units The ohm unit following the current units Ch 4: TBU HSP current Ch 4: TBU HSP current shown for Channel 4 (i.e. AOhm) shown for Channel 4 (i.e. AOhm) indicates that a 50 ohm termination was indicates that a 50 ohm termination was used internal to the oscilloscope used internal to the oscilloscope Figure 3 ESD +8 KV Contact Discharge (IEC-61000-4-2) Figure 4 Surge 1.2/50 5 KV Run T Trigd Run T Trigd T T Ch1 Max Ch1 Max 124.4 V 28.3 V 1 Ch4 Max 1 Ch4 Max 4 4 365.4 mA 451.8 mA Ch4 Min Ch4 Min -322.4 mA -395.7 mA Ch1 100 V MA4.00 ms Line 116 V Ch1 20.0 V MA4.00 ms Line 116 V Ch4 200 mA Ch4 200 mA T 20.20 % T 20.20 % Ch 1: input voltage / surge / fault to TBU HSP Ch 1: input voltage / surge / fault to TBU HSP The ohm unit following the current units The ohm unit following the current units Ch 4: TBU HSP current Ch 4: TBU HSP current shown for Channel 4 (i.e. AOhm) shown for Channel 4 (i.e. AOhm) indicates that a 50 ohm termination was indicates that a 50 ohm termination was used internal to the oscilloscope used internal to the oscilloscope Figure 5 120 V Figure 6 28 V rms rms Reference For more information on implementing advanced circuit protection technologies for RS-485 ports, please review the Bourns RS-485 application note:

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8543.70.00 Other machines and apparatus Free
13 Signal processors (graphic equalisers, crossovers etc.) 91 Other Free

9027.10.00 Instruments and apparatus for physical or chemical analysis (eg, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes Free

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9030.31.00 Oscilloscopes, spectrum analysers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, x-ray, cosmic or other ionising radiations.
Other instruments and apparatus, for measuring or checking voltage, current, resistance or power Multimeters without a recording device Free

8473.30.00 Parts and accessories of the machines of 8471 AUTOMATIC DATA PROCESSING MACHINES AND UNITS THEREOF; MAGNETIC OR OPTICAL READERS, MACHINES FOR TRANSCRIBING DATA ONTO DATA MEDIA IN CODED FORM AND MACHINES FOR PROCESSING SUCH DATA, NOT ELSEWHERE SPECIFIED OR INCLUDED:
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8538 PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE APPARATUS OF 8535, 8536 OR 8537:
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Bourns may also be referenced as

BOURNS
Bourns Inc.
BOURNS JW MILLER
BR4
J.W. Miller
JW Miller

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