Coupling Decoupling Networks (CDN's)

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The EMC Shop stocks coupling decoupling networks (CDN's) for most power and data line configurations. CDN's are quintessential for performing EMC testing. In short, conducted immunity coupling networks ensure electrical transients are sent down the path of the line to the EUT. Decoupling that signal from entering the rest of the network is done in different ways. In radiated immunity, you are coupling wireless signals over the air through the antenna. It may be appropriate to use a decoupling clamp on lines as they exit the test chamber.

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Coupling/Decoupling networks are built in to most current generators for single phase power EUT. Coupling networks are typically easy to set up for conducted immunity (surge, EFT, PQF). RF conduted immunity requires an assortment of couplers and without proper setup, are easy to blow up.

Type's of Coupling Decoupling Networks

  • CDN's for Surge/EFT Immunity: Power Lines and Data Lines
  • RF CDN's for Conducted Immunity: Power Lines and Data Lines: Used for just decoupling as well
  • EM Clamps: Inject and decouple RF disturbances
  • Absorbing Clamps: Just for decoupling RF disturbances on cables (Needed for BCI Testing)
  • Bulk Current Injection Probes: Used for just coupling RF noise

Coupling/decoupling networks for RF conducted immunity have a port top-side where your inject the RF signal, an EUT side where the RF disturbances are directed to power or data lines. The decoupling path exit the AE Side and is generally safe from disturbances.

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Coupling Decoupling Networks (CDN's) Categories

Telecom Surge CDN's
Telecom Surge CDN's
3-Phase Surge CDN's
3-Phase Surge CDN's
RF Power Line CDN's
RF Power Line CDN's
RF Data Line CDN's
RF Data Line CDN's
Injection Transformers
Injection Transformers
Capacitors
Capacitors

Coupling Decoupling Networks (CDN's) Test Equipment, Systems & Solutions

  • Teseq CDN S Series Coupling Network for Screened or Coaxial Cables

    Teseq CDN S Series Coupling Network for Screened or Coaxial Cables

    SKU: 4255

    Application/Test Type: Coupling / decoupling network (CDN) for screened data/telcom lines or coaxial cables
    Common Mode Impedance: 150 kHz to 26 MHz: 150 Ω ±20 Ω; 26 MHz to 230 MHz: 150 Ω +60 Ω / -45 Ω
    Current Rating: 250 mA (CDN ST08 1 Amp)
    Decoupling of Common Mode Disturbance: 150 kHz: Over 60 dB; 1.5 MHz: Over 60 dB; 30 MHz: Over 50 dB; 230 MHz: Over 40 dB (refer to data sheet for some exceptions)
    Frequency Range: 10 kHz to 80 MHz or 150 kHz to 230 MHz
    Mains & EUT Connections: BNC 50 Ω, N 50 Ω, BNC 75 Ω, N 75 Ω, XLR 3 pins, DIN 5 pins, RJ45, D-Sub 9 pins, D-Sub 15 pins, D-Sub 25 pins, HDMI (refer to data sheet for exact model specifications)
    RF Connector: BNC 50 Ω
    RF Input Voltage: 20 Volts Max
    Standards Met: IEC 61000-4-6, CISPR 22, IEC 60601-1-2
    Voltage Division Factor: 9.5 dB to 10 dB ±1 dB (refer to data sheet for some exceptions)
    Voltage Rating: AC max. voltage (line to ground): 100 V - 250V; DC max. voltage (line to ground): 150 V - 400 V; Test voltage: 200 V - 750 V DC, 2 sec (refer to data sheet for exact model specifications)
    $710.00 - $2,110.00
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  • Teseq CDN M416 4-Line Coupling/Decoupling Network

    Teseq CDN M416 4-Line Coupling/Decoupling Network

    SKU: sku-225

    Weight: 700 grams (1.5 LB.'s)
    Application/Test Type: 3 power lines, (L+N+PE), (2L+PE), (Optional L+L+L)
    Common Mode Impedance: 150 Ω +10/-20 Ω
    Current Rating: 10 Amps Maximum
    Decoupling of Common Mode Disturbance: Greater than 30 dB
    Dimensions: 4.1 x 3 x 5 inches (10.5 x 7.5 x 12.5 cm)
    Frequency Range: 150 kHz to 230 MHz (Optional 10 kHz - 80 MHz)
    Insertion Loss: Greater than 0.1 dB
    Mains & EUT Connections: 4 mm, safety (Optional IEC 320 16A)
    RF Connector: BNC, 50 Ω
    RF Input Voltage: Less than 30 V
    Standards Met: IEC 61000-4-6, CISPR 16-1-2, CISPR 16-2-1 and CISPR 15
    Voltage Division Factor: 20 dB ±1.5 dB
    Voltage Rating: AC max. voltage (line to ground) / (line to line): 250 V / 433 V (CDN M216-1000V: 500 V / 1000 V); DC max. voltage (line to ground) / (line to line): 400 V / 800 V (CDN M216-1000V: 1000 V / 2000 V); Test voltage: 3 kV DC, 2 sec
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  • Teseq CDN M210B Coupling Network with CEE 7/17 EUT Port & IEC 60320 C14 AE Port

    Teseq CDN M210B Coupling Network with CEE 7/17 EUT Port & IEC 60320 C14 AE Port

    SKU: sku-223

    Weight: 3.3 Lbs (1.5 kg)
    Application/Test Type: switchable 2 or 3 power lines, (L+N or L+N+PE)
    Common Mode Impedance: 150 kHz to 26 MHz: 150 Ω ±20 Ω 26 MHz to 230 MHz: 150 Ω +60 Ω / -45 Ω
    Current Rating: 10 Amps
    Decoupling of Common Mode Disturbance: 150 kHz: Greater than 30 dB 1.5 MHz: Greater than 60 dB 30 MHz: Greater than 40 dB 230 MHz: Greater than 20 dB
    Dimensions: 3.9" x 3.9" x 9.5" (100 mm x 100 mm x 240 mm)
    Frequency Range: 150 kHz to 230 MHz
    Insertion Loss: Less than 0.1 dB
    Mains & EUT Connections: AE Euro: IEC 60320 C14 EUT-socket 2lines: CEE 7/17;
    RF Connector: BNC 50 Ω
    RF Input Voltage: 30 Volts Max
    Standards Met: IEC/EN 61000-4-6
    Voltage Division Factor: 150 kHz to 80 MHz: 9.5 dB ±1 dB 80 MHz to 230 MHz: 9.5 dB +3 dB / -2 dB
    Voltage Rating: AC max. voltage (line to ground): 250 V DC max. voltage (line to ground): 400 V; 3 kV DC, 2 sec
    $1,020.00 - $1,445.00
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  • Teseq CDN 3083-Surge 620 Volt, 100-200 Amp Manual Coupler

    Teseq CDN 3083-Surge 620 Volt, 100-200 Amp Manual Coupler

    SKU: sku-220

    Weight: 80 kg (176 LB's)
    Application/Test Type: Manual Surge Testing for EUT up to 100Amps, 620 VAC; Three phase (5 wire); Two phase (4 wire); Single phase (3 wire)
    Current Rating: 100 Amp or 200 Amp continous depending on model
    Dimensions: 850 x 520 x 345 mm
    Mains & EUT Connections: Fischer 105 series; Screw terminals, rated for 230 A
    RF Input Voltage: Max. 8 kV / 4 kA
    Standards Met: IEC / EN 61000-4-5:2005, ANSI C62.45 standard, in IEC / EN 61000-4-12:2006 and ANSI C62.41
    Voltage Rating: 620 VAC RMS L-to-L (max. 440 V for NSG 3040 and Modula); 620 VAC RMS L-to-PE (max. 440 V for NSG 3040 and Modula); 620 VDC
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  • Com-Power CDN-M325E 150 kHz - 230 MHz 3-Line RF Coupling Decoupling Network - The EMC Shop

    Com-Power CDN-M325E 150 kHz - 230 MHz 3-Line RF Coupling Decoupling Network

    SKU: 4845

    EMC Standard: IEC/EN 61000-4-6
    Application/Test Type: Three conductor power cable
    Associated Equipment: RF Conducted Immunity Test Systems
    Current Rating: 25 Amps AC / 17 Amps DC (Max)
    Decoupling of Common Mode Disturbance: ≥ 40dB (EUT/AE)
    Dimensions: 6 x 6 x 13 inches 15.2 x 15.2 x 33 cm
    Frequency Range: 150 kHz to 230 MHz
    Mains & EUT Connections: 4 mm shrouded banana sockets
    RF Connector: 50 Ω BNC (Female)
    RF Input Voltage: 40 V (Max)
    Standards Met: IEC 61000-4-6
    Voltage Division Factor: 9.5 dB +4 / -1
    Voltage Rating: 250 V AC / 350 V DC (Line to Ground)
    Typically In Stock
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  • Teseq CDNE M310 Coupling/Decoupling Network for Emission Measurement, 10 A, 30 to 300 MHz

    Teseq CDNE M310 Coupling/Decoupling Network for Emission Measurement, 10 A, 30 to 300 MHz

    SKU: sku-87

    Weight: 700 grams (1.5 LB.'s)
    Application/Test Type: Emission measurement (CDNE) to measure disturbance voltages in the 30 to 300 MHz frequency range
    Common Mode Impedance: Common mode impedance (EUT port): 150 Ω +10/-20 Ω
    Current Rating: 10 Amps
    Decoupling of Common Mode Disturbance: Greater than 30 dB
    Dimensions: 4.1 x 3 x 5 inches (10.5 x 7.5 x 12.5 cm)
    Frequency Range: 30 MHz to 300 MHz
    Insertion Loss: Greater than 0.1 dB
    Mains & EUT Connections: 4 mm, safety
    RF Connector: BNC, 50 Ω
    RF Input Voltage: Less than 10 Volts
    Standards Met: CISPR 16-2-1 edition 3.0, CISPR 16-2-1, CISPR 15 and IEC 61000-4-6
    Voltage Division Factor: 20 dB ±1.5 dB
    Voltage Rating: C max. voltage (line to ground): 300 V; AC max. voltage (line to line): 520 V; DC max. voltage: 300 V; Tes Voltage: 2000 V AC, 2 s
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  • Teseq CDN M216 1kV CDN for CISPR 16-1-2, CISPR 16-2-1 and CISPR 15

    Teseq CDN M216 1kV CDN for CISPR 16-1-2, CISPR 16-2-1 and CISPR 15

    SKU: sku-86

    Weight: 700 grams (1.5 LB.'s)
    Application/Test Type: Emission measurement (CDNE) to measure disturbance voltages in the 30 to 300 MHz frequency range.
    Common Mode Impedance: 150 Ω +10/-20 Ω
    Current Rating: 10 Amps Maximum
    Decoupling of Common Mode Disturbance: Greater than 30 dB
    Dimensions: 4.1 x 3 x 5 inches (10.5 x 7.5 x 12.5 cm)
    Frequency Range: 150 kHz to 230 MHz (Optional 10 kHz - 80 MHz)
    Insertion Loss: Greater than 0.1 dB
    Mains & EUT Connections: 4 mm, safety
    RF Connector: BNC, 50 Ω
    RF Input Voltage: Less than 30 V
    Standards Met: IEC 61000-4-6, CISPR 16-1-2, CISPR 16-2-1 and CISPR 15
    Voltage Division Factor: 20 dB ±1.5 dB
    Voltage Rating: AC max. voltage (line to ground) / (line to line): 250 V / 433 V (CDN M216-1000V: 500 V / 1000 V); DC max. voltage (line to ground) / (line to line): 400 V / 800 V (CDN M216-1000V: 1000 V / 2000 V); Test voltage: 3 kV DC, 2 sec
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  • Com-Power CDN-M225E Coupling Decoupling Network for Unscreened Power Supply Lines

    Com-Power CDN-M225E Coupling Decoupling Network for Unscreened Power Supply Lines

    SKU: sku-54

    Weight: 5 lbs. 2.3 kg
    Application/Test Type: two conductor power cable
    Common Mode Impedance: 150 kHz - 26 MHz: 150Ω ± 20Ω 26 MHz - 80 MHz: 150Ω + 60Ω / – 45Ω 80 MHz - 230 MHz: 150Ω + 60Ω / – 60Ω
    Current Rating: 25 Amps AC / 17 Amps DC (Max)
    Decoupling of Common Mode Disturbance: ≥ 40dB (EUT/AE)
    Dimensions: 6 x 6 x 13 inches 15.2 x 15.2 x 33 cm
    Frequency Range: 150 kHz to 230 MHz
    Mains & EUT Connections: 4 mm shrouded banana sockets
    RF Connector: 50 Ω BNC (Female)
    RF Input Voltage: 40 V (Max)
    Standards Met: IEC / EN 61000-4-6
    Voltage Division Factor: 9.5 dB +4 / -1
    Voltage Rating: 250 V AC / 350 V DC (Line to Ground)
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  • Schwarzbeck CDN M4PE 32A Coupling Decoupling Network - The EMC Shop

    Schwarzbeck CDN M4PE 32A Coupling Decoupling Network

    SKU: 6657

    Frequency Range: 150 kHz to 230 MHz
    Common Mode Impedance: 150 kHz – 24 MHz: 150 Ω ±20 Ω, 24 MHz–80 MHz: 150 Ω +60 Ω/-45 Ω, 80 MHz–230 MHz: 150 Ω ±60 Ω
    Max. RF Test Voltage: 30 V
    RF Input Power: 6 W
    Input voltage EuT (AE): Line to ground / line to line: 500 VAC / 1000 VDC, 1000 VAC / 2000 VDC
    EUT, AE Connectors: 4 mm safety banana (f)
    Test Standards: IEC 61000-4-6
    $295.00 - $3,095.00
    Typically In Stock
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