The Schaffner CDN-150-150 is a Coupling/Decoupling Network (CDN) for conducted immunity testing per IEC/EN 61000-4-6 and related standards. It injects common mode disturbance signals into unscreened, unbalanced control lines, supporting equipment powered by DC or AC supplies up to 150 A per line and 250 V DC. The device operates across 150 kHz to 230 MHz, delivering precise RF coupling and decoupling attenuation to simulate real-world electromagnetic interference while maintaining signal integrity for the equipment under test (EUT).
Technical Specifications
• Frequency Range: 150 kHz to 230 MHz
• DC Maximum Voltage (Line to Ground): 250 V
• Test Voltage: 400 V DC for 2 seconds
• EUT Current Rating: Up to 150 A per line
• Common Mode Impedance (EUT Port): 150 Ω ±20 Ω (150 kHz to 26 MHz); 150 Ω +60 Ω / −45 Ω (26 MHz to 230 MHz)
• RF Input Connector: BNC 50 Ω; RF voltage 20 kHz (sinusoidal)
• Decoupling Attenuation (RF Port to AE): > 30 dB at 150 kHz; > 60 dB at 1.5 MHz; > 50 dB at 30 MHz; > 30 dB at 230 MHz
• Operating Temperature: 5 to 40 °C
• Cable Type: Unscreened, unbalanced
– Key Features
• Supports both DC and AC powered equipment testing
• Compliant with IEC/EN 61000-4-6, CISPR 15, CISPR 22, CISPR 24, EN 61000-6-1, EN 61000-6-2, IEC 60533, IEC 60601-1-2, and IEC 61326
• High current handling capacity (150 A per line)
• Wideband RF coupling from 150 kHz to 230 MHz
• Controlled common mode impedance across frequency ranges
• Superior decoupling performance (30–60 dB range)
– Typical Applications
• Conducted immunity testing for industrial and consumer electronics
• EMC compliance verification per international standards
• RF disturbance injection on power and signal lines
• Equipment emission testing and susceptibility assessment
– Compatibility & Integration
The CDN-150-150 couples RF signals via a 50 Ω BNC connector and interfaces with EUT and auxiliary equipment (AE) ports. It accommodates unscreened, unbalanced control lines typical of industrial installations and laboratory test environments.
