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

CDN M2/M3-16 Coupling Decoupling Network

SKU: 8696

Frequency Range: 150 kHz - 230 MHz

Max RF Test Voltage: 30 V

RF Input Power: 6 W (continuous)

RF Input Connector: 50 Ω BNC female

Input Voltage EuT (AE): 250 VAC, 400 VDC

Standards Met: IEC 61000-4-6

Applications: Conducted Immunity

Current Rating: 16 Amps

Associated Equipment: RF Conducted Immunity Test Systems

Cost New:

Was:

Price Now:

$390.00 - $3,900.00

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3cTest SEPN 38100T Surge/EFT 3 Phase Coupling Network

SKU: 7271

EUT Load Capacity (AC): 380V, 100 A, 50 Hz/60 Hz three-phase-five-wire

EUT Load Capacity (DC): 450 V, 100 A

Fuse: 6 A

Max Power Consumption: 200 W

Dimensions: 600 x 800 x 1830 mm (W x D x H) 23.6 x 31.5 x 72 in

Weight: 288 kg / 635 lbs

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

Applications: Conducted Immunity

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Teseq CDN ST08 Coupling Decoupling Network

SKU: 8413

Frequency Range: 10 kHz to 80 MHz

Application: CDN for screened eight lines with RJ45 connector

Current Rating: 1000 mA

EUT Connector: BNC 50 Ω

Common mode impedance (EUT Port) 10 kHz to 26 MHz: 150 Ω ±20 Ω

Common mode impedance (EUT Port) 26 MHz to 80 MHz: 150 Ω +60 Ω /-45 Ω

RF Voltage: <20 V

Cost New:

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Price Now:

$1,600.00

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AE Techron CR 600 Chattering Relay for DO-160 Section 19

SKU: sku-CR600

Coil Voltage: 24 V DC

Coil Current: 84 mA

Contact Rating: 30 A

Typical Pulse Voltage: > 700 Vpp

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3ctest CDN 405AF4 Surge Coupler for Unshielded Unsymmetric Lines

SKU: 3CT-CDN405AF4

Test Standards: EN/IEC 61000-4-5

Applications: Data lines Unshielded, Unsymmetrical Surge Immunity

Data Rate: 100 Kbit/s

Surge Voltage Handling: 6kV (10kV Available)

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AE Techron T1000 Magnetic Field Susceptibility Transformer

SKU: 8537

Applications: Magnetic Susceptibility

Test Standards: DO-160 Section 19

Current Handling: 100 Amps RMS

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3ctest TPT-7637-4C100 Coupling Transformer ISO 7637-4 Pulse B

SKU: 8736

Frequency Range: 1 kHz – 300 kHz

Max Unsaturated Voltage: 100 @ f ≥ 1 kHz

Max Current: 32

EUT Max Current: 100

Applications: EMC Testing on EV - Electric Vehicles, Batteries, and Charging Stations

Test Standards: ISO 7637-4

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CDN-M3-32A-HV AC + DC 1000V RF Coupling/Decoupling Network

SKU: 12165

1 review

Application/Test Type: unscreened supply lines (mains) AC + DC, RF Conducted Disturbances

Current Rating: up to 32 Amps

Max Voltage: up to 1,000 Volts

Frequency Range: 150 kHz to 230 MHz

Mains & EUT Connections: banana sockets

RF Connector: 50 Ω BNC (Female)

Standards Met: IEC / EN 61000-4-6

Associated Equipment: RF Conducted Immunity Test Systems

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Teseq CDN M532 5-Line/32 Amp RF Coupling/Decoupling Network

SKU: 12093

Associated Equipment: RF Conducted Immunity Test Systems

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: 32 Amps Maximum

Decoupling of Common Mode Disturbance: Greater than 30 dB

Dimensions: 6.3 x 6.3 x 20 inches (16.0 cm x 16.0 cm x 50.0 cm)

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

Voltage Division Factor: 10 dB +3 dB / -1 dB

EMC Test Standard: IEC/EN 61000-4-6

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Schwarzbeck CDN S19 HDMI Coupling Decoupling Network

SKU: 8418

Frequency Range: 150 kHz - 230 MHz

Max. RF Test Voltage: 30 V

Max. RF Input Power: 6 W (continuous)

RF Input Connector: 50 Ω BNC female

EuT, AE Connectors: HDMI female

Test Standards: IEC/EN 61000-4-6

Associated Equipment: RF Conducted Immunity Test Systems

Cost New:

Was:

Price Now:

$230.00 - $2,295.00

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Schloder CDN M4-32_10 10 kHz – 230 MHz Coupling Network

SKU: 11766

Associated Equipment: RF Conducted Immunity Test Systems

EMC Standard: IEC/EN 61000-4-6

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3ctest DCP-100P 100pF Coupling Capacitor

SKU: sku-1735

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