Filter Bag RS-485 Profibus EMC

Order Code 829485

Filter Bag RS-485 Profibus EMC

Characteristics

  • RS-485 filter circuit with all important components
  • Prevention of negative influence on the operating behavior due to interference emissions, electrostatic discharges (ESD) and fast transients (burst)
  • Straightforward design implementation through BOM and layout files

Applications

  • RS-485 applications with 9-pin D-SUB connectors and pin assignment according to PROFIBUS definition.

PCB layout files

The RS-485 EMC and ESD solution can be easily integrated into designs. PCB layout files (Gerber) can be downloaded here.

Download Gerber File here

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
Samples
WE-SL2 SMT Common Mode Line Filter
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
WE-VE ESD Suppressor
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-VE ESD Suppressor
WCAP-CSGP MLCCs 10 V(DC)
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
WCAP-CSGP MLCCs 6.3 V(DC)
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
WR-DSUB PCB
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-DSUB PCB
WR-DSUB PCB
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-DSUB PCB
WE-TMSB Tiny Multilayer Suppression Bead
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.

Ready to implement

Ready to implement

Due to the steadily growing number of applications that are based on networked communication through data lines, it is becoming increasingly importan to ensure trouble-free operation and protection of electrical systems and devices.

To avoid reduced integrity of the data transfer due to interference and to pass EMC tests, components matched to the data lines are necessary. Implementation is greatly simplified by the filter bags, which contain filter components specially selected for the respective application.

RS485 Diagramm

Filter Performance

Pi-Filter VCC Line Noise Suppression
  • Attenuation up to 95 dB due to pi-filter
  • Protection of high frequency voltages
Data Line Common Mode Attenuation

High common mode attenuation over wide frequency range due to common mode choke (WE-SL2) and Y-capacitors (WCAP-CSGP)

Data Line Differential Mode Attenuation

High differential mode attenuation from 6 MHz due to X-capacitor (WCAP-CSGP)

No influence on the data signal according to RS-485 standard