NI PXIe-4143 Power SMU – Multi‑channel source/measure for PXI Express production and characterization

The NI PXIe-4143 is a PXI Express source measure unit (SMU) designed for multi-channel device power, IV sweeps, and automated production test. From my experience, it’s the kind of module you pick when you need clean, precise sourcing and measurement with compact channel density—typically four-quadrant operation that can both source and sink current—while keeping everything synchronized over the PXI backplane. You might notice that its footprint per channel is especially friendly for multi-site test setups where cabinet space is tight and throughput matters.

Company’s Order Placement Process and Guarantees

• – Warranty: 365 days after delivery

• – Delivery: 1 week if in stock; no more than one month at the latest

• – Payment: 50% advance payment; full payment prior to delivery

– Express options: FedEx, UPS, DHL

Key Features

• Multi-channel SMU in a 3U PXI Express form factor – Ideal for parallel device power and multi-site test to improve throughput.
• Four-quadrant operation – Source and sink voltage/current with programmable compliance to protect sensitive DUTs.
• Precision sourcing and measurement – Stable output and low-noise readings for IV characterization, leakage checks, and parametric test.
• 4-wire (Kelvin) measurement support – Remote sense wiring minimizes lead drops for more accurate voltage measurements at the DUT.
• Fast sequencing and on-board setpoint control – In many cases you can step through waveform-like profiles without taxing the host CPU.
• Backplane synchronization – PXI trigger lines and timing features help align sweeps and measurements across instruments.
• Integrated safety features – Current/voltage limits, output enable/disable, and fault handling to safeguard devices under test.
• Software-ready – Works with NI-DCPower drivers and Soft Front Panel; commonly used in LabVIEW, TestStand, and C/.NET flows.

Technical Specifications

Related or Supporting Products

• NI PXIe-4141 / PXIe-4142 – Same family SMUs with different channel counts and ranges; suitable when you need fewer channels with similar precision.
• NI PXIe-4145 – In many cases used when higher dynamic performance or different output ranges are required for fast device power profiles.
• NI PXIe-4135 / PXIe-4139 – High-performance SMUs favored for faster transients or higher power envelopes; a good fit for demanding IV sweeps.
• NI PXIe-1071 / PXIe-1085 – PXI Express chassis options; pick slot count and bandwidth based on how many instruments you plan to run.
• NI PXIe-8880 – Embedded controller for Windows-based automated test; pairs well with NI-DCPower and TestStand.
• Shielded 68‑pin cable + NI terminal block – Used to break out Force/Sense connections; typically chosen for the 414x series to maintain low noise and accurate Kelvin routing.

Installation & Maintenance

• Cabinet and ventilation – Install the PXIe-4143 in a PXI Express chassis with unobstructed airflow. Keep intake/exhaust clear and, in most cases, allow a few centimeters of clearance at the front and rear.
• Wiring – Use shielded, low-EMF cabling and 4-wire (Kelvin) connections for accurate load regulation at the DUT. Keep high-current returns short and routed away from sensitive sense leads.
• Safety – Set current/voltage limits before enabling outputs. De-energize outputs prior to re-cabling. For capacitive loads, consider output slew settings and allow for discharge paths.
• Calibration – Perform self-calibration via NI-DCPower (and schedule external calibration per your QA policy). Typically, annual intervals work well in production environments.
• Firmware & drivers – Keep NI-DCPower and firmware up to date through NI MAX to ensure stability and access to the latest features.
• Cleaning – Periodically remove dust from the chassis filters and front panel using dry, oil-free air to maintain cooling performance.

Quality & Certifications

• Certifications: CE (EMC/LVD), RoHS compliant; manufacturer operates under ISO 9001 quality systems.
• Warranty: 365-day coverage provided as part of our supply commitment.