The NI 184351-01 is a 12V DC power adapter engineered to supply stable, regulated power to compatible National Instruments test and measurement devices. This compact external power supply converts wide-range AC input into a precisely regulated 12V DC output, delivering up to 1 A of continuous current with exceptional efficiency and low standby power consumption.
Technical Specifications
Input and Output
• Input voltage range: 90V AC to 264V AC
• Rated input voltage: 100V AC to 240V AC
• Input frequency: 47 Hz to 63 Hz (47–63 Hz operating range); 50/60 Hz rated
• Output voltage: +12V DC
• Maximum load current: 1 A
• Rated output power: 12W
Power Quality and Regulation
• Load regulation: 11.4V to 12.6V
• Unload output voltage: 11.4V to 12.6V
• Ripple and noise: 120 mVp-p maximum (20 MHz bandwidth oscilloscope measurement)
• Input current: 0.4 A maximum at rated input voltage and output load
• In-rush current: 60 A maximum (cold start at 240V AC, rated load, 25°C ambient)
• AC leakage current: 0.25 mA maximum @ 240V AC input
Efficiency and Thermal Performance
• Average efficiency: ≥82.96% at 115V AC and 230V AC input with rated load
• Unload standby power: 0.1W maximum
Transient Response
• Turn-on delay time: 3 seconds maximum @ 100V AC input and maximum load
• Rise time: 100 ms maximum @ 100V AC input and maximum load
• Hold-up time: 5 ms minimum @ 100V AC input and maximum load
• Overshoot: 10% maximum during power supply on or power-down
Environmental Ratings
• Operating temperature: 0°C to +40°C (full load)
• Storage temperature: −10°C to +55°C
• Relative humidity: 5% to 90% at 40°C for 72 hours (full load operation)
• Operating vibration: IEC 721-3-3 3M3; 5–9 Hz
– Key Features
• Wide AC input acceptance: 90–264V AC for global deployment
• Tight output regulation across full load range
• Low leakage current for safety-critical applications
• Minimal standby power draw
• Controlled in-rush transients
• Compact form factor designed for integration into NI hardware systems
– Typical Applications
Field instruments, portable measurement systems, and laboratory equipment requiring isolated 12V DC power from standard AC mains. Ideal for environments with variable AC supply voltages and frequency variation.
– Compatibility & Integration
Designed for National Instruments devices and systems requiring 12V DC regulated power. Verify connector compatibility and power requirements with target NI hardware specifications.
