Product Information

RS-485EVALBOARD1

RS-485EVALBOARD1 electronic component of Bourns

Datasheet
Other Development Tools TVS/TBU/GDT 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)
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Obsolete

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Availability Price Quantity
0 - WHS 1

MOQ : 1
Multiples : 1
1 : USD 24.1807
10 : USD 23.1753
25 : USD 22.1569
N/A

Obsolete
0 - WHS 2

MOQ : 1
Multiples : 1
1 : USD 95.8025
5 : USD 89.8757
10 : USD 77.531
25 : USD 74.0735
50 : USD 70.123
N/A

Obsolete
0 - WHS 3

MOQ : 1
Multiples : 1
1 : USD 15.6574
N/A

Obsolete
0 - WHS 4

MOQ : 1
Multiples : 1
1 : USD 13.6845
N/A

Obsolete

Read More Specifications

     
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
Factory Pack Quantity :
Subcategory
Taric
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Additional Infomation About Product

RS-485 Port Protection Evaluation Board 1 Introduction This Evaluation Board serves as an aid in TBU HSP 1 evaluating circuit protection on RS-485 1 12 1 OUT1 TVS3 serial device ports, using two Bourns 1 IN1 TVS1 3 GDT1 TVS5 TBU High-Speed Protectors (HSP), two 2 1 1 3 3 1 GDT3 fast-acting GDTs and two TVS diodes to GND 2 2 3 GND meet the required industry standards on GDT2 1 TVS2 RS-485 port interfaces. The recommended TVS4 11 2 1 OUT2 Bourns TBU device solution, with a IN2 TBU HSP 2 low capacitance GDT, oerff s enhanced high-speed performance features over Figure 1 RS-485 Evaluation Board Schematic 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 21mm 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 Figure 2 RS-485 Evaluation Board Top Side Layout* exposed lines. Connect OUT1 and OUT2 to the RS-485 IC device. Table 1 RS-485 Evaluation Board Bill of Materials * The default congfi uration of this board uses 2 GDTs No. Part Number Qty. Description Reference (GDT1, GDT2) and discrete SMB TVS diodes (TVS1,TVS2). The board allows dierff ent congfi urations: 1 TBU-CA065-200-WH 2 TBU Single Bidirectional Line 650 V 200 mA TBU HSP 1, TBU HSP 2 2 single 2031 GDTs (GDT1 and GDT2) may be replaced by a dual 2030 GDT (GDT3, not yet released) 2 2031-23T-SM-RPLF 2 Single Line Fast-acting GDT 650 V GDT1, GDT2 2 SMB TVS diodes (TVS1 and TVS2) may be replaced with a) 2 SOT23 TVS diodes (TVS3, TVS4) 3 SMBJ12CA 2 Single Bidirectional Line TVS 12 V SMB TVS1, TVS2 or b) a single TVS diode array (TVS5) 4/11 FU1106 1 2 21 21 12 21RS-485 Port Protection Evaluation Board 1 Performance Graphs Run T Trigd PreVu T Trig T T 1 Ch1 RMS Ch1 Max 126.7 V 508 V 1 Ch4 Max 2 371.2 mA Ch4 Min Ch4 Max -359.9 mA 1.74 A 4 4 Ch1 200 V Ch2 20.0 V MA2.00 ms Line -3.98 V Ch1 200 V MA200 ns Ch1 -172 V Ch4 200 mA Ch4 1.00 A T 27.20 % T 31.00 % Ch 1: Surge generator Ch 1: AC power generator The ohm unit following the current units The ohm unit following the current units Ch 2: Voltage on protected side of world (downstream Ch 2: Consumed current (TBU HSP Trigger current) shown for Channel 4 (i.e. AOhm) shown for Channel 4 (i.e. AOhm) Note: The noise generated by the GDT when it res of TBU device at SMBJ12CA TVS diode side) indicates that a 50 ohm termination was indicates that a 50 ohm termination was causes a ground bounce and is reected in current Ch 4: Current consumed (TBU HSP trigger current) used internal to the oscilloscope used internal to the oscilloscope measurement at the time the GDT device is triggered. Figure 3 Power Cross 120 V Figure 4 Slew Rate 1 KV/s rms Reference PreVu T T For more information on implementing advanced circuit protection technologies for RS-485 ports, please review the Bourns RS-485 application note: 1 Ch1 Max

HS Compliance

Tariff Desc

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

9031.80.00 MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS Other instruments, appliances and machines Free

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:
.Other 71 No Weighing less than 1kg Free

8537 BOARDS, PANELS, CONSOLES, DESKS, CABINETS AND OTHER BASES, EQUIPPED WITH TWO OR MORE APPARATUS OF 8535 OR 8536, FOR ELECTRIC CONTROL OR THE DISTRIBUTION OF ELECTRICITY, INCLUDING THOSE INCORPORATING INSTRUMENTS OR APPARATUS OF CHAPTER 90, AND NUMERICAL CONTROL APPARATUS, OTHER THAN SWITCHING APPARATUS OF 8517:
8538 PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE APPARATUS OF 8535, 8536 OR 8537:
8538.10.10 22 For programmable controllers Free

Bourns may also be referenced as

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

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