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.

Coupling Decoupling Networks (CDN's) Categories

Injection Transformers

Capacitors

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

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

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$1,020.00 - $1,445.00

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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

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)

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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

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

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

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)

Applications: RF Conducted Immunity Testing

Test Standards: IEC 61000-4-6

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$295.00 - $3,095.00

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CDN 418CAN Data & Control Line Coupling Decoupling Network

SKU: 55116

Coupled Waveform: Damping oscillation wave at 100 kHz/1 MHz

Pulse Voltage: ≥3 kV

Coupling Mode: CAN H+CAN L simultaneous ground/LIN ground

Communication Frequency: <5 MHz

Data Rate: CAN 10MBit/s, LIN 100 KBit/s

Working Voltage: ≤12 V DC

Working Current: Maximum 2 A

EMC Standard: EN/IEC 61000-4-18

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EM Test CN 508S1 Surge CDN for Data Lines

SKU: 6923

Applications: Data lines Unshielded, Unsymmetrical Surge Immunity

Test Standards: IEC 61000-4-5

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Haefely FP-SURGE 100M 100 Amp Surge Immunity System

SKU: 8061

Test Capabilities: Combination Wave Surge Immunity

Standards Met: IEC/EN 61000-4-5 ANSI standards C62.41 and C62.45

Applications: CE Marking, Medical Devices, Industrial Machinery, Electronics & IT

Max EUT AC Voltage: 690 Volts

Max EUT Current: 100 Amps

Impulse Voltage: 8 kV

Impulse Current: 4 kA

RENTAL ONLY

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Teseq CDN 118 Telecom Coupling Decoupling Network

SKU: 8867

Max. Operating Voltage: 250 V, AC and DC

Max. Operating Current: 0.5 A

Ohmic Resistance Per Path: 3 Ω

Decoupling Chokes 1 kHz: 20 mH nominal

Pulse: 1.2/50 μs and 10/700 μs pulse

Max. Pulse Voltage: 6.6 kV line to ground, 3 kV line to line

Applications: Surge Immunity Testing

Test Standards: IEC 61000-4-5

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$395.00

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KeyTek CM-3CD-32 Coupler/Decoupler, 3 Phase

SKU: 8936

EFT Waveform: 5/50 ns

Surge Waveform: Combination wave: 1.2/50µs open-circuit voltage, 8/20µs short-circuit current

Max. Surge Voltage and Current: 6.6 kV, 3.3k A

Max. EFT Voltage: 4.4 kV

Coupler/Decoupler AC Voltage: 50 to 250V, 50/60Hz line to ground, 50 to 433V line to line

Coupler/Decoupler AC Current: 32A/phase continuous

Minimum System Requirements: KeyTek EMCPro PLUS or any simulator with EFT test capability

Applications: EFT/Burst immunity testing, Conducted Immunity/Susceptibility Test Setup

Test Standards: IEC 61000-4-4, IEC 61000-4-5

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