NI 782431-01 – Genuine NI Replacement Assembly for Lab and Production Test Systems

The NI 782431-01 is a factory-coded National Instruments spare/assembly, typically ordered as a like-for-like replacement using the exact part number printed on your existing unit or BOM. From my experience, maintenance teams use this code to keep PXI/PXIe, CompactDAQ, or controller-based test platforms running without requalifying an alternative. You might notice that NI marks these assemblies with unique serial/lot identifiers, which helps traceability and keeps audits clean.

If you’re dealing with a down test cell or a flaky channel in an NI-based rack, this is usually the fastest route back to stable operation—swap the assembly, verify with NI Self-Test or MAX, and you’re back on schedule.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL
• Pre-shipment checks: Visual inspection, basic functional verification (where applicable), ESD-safe packaging

Key Features

• Original NI part number (782431-01) – Ensures drop-in compatibility with the specific NI module or chassis revision on your BOM.
• Backplane/host powered – No external PSU required; integrates into the existing NI system power architecture.
• Traceable manufacturing – Lot/serial tracking supports quality systems and maintenance records.
• Service-friendly – Typically field-replaceable following NI service manuals and standard ESD procedures.
• Stable supply – Sourced against the exact NI code to avoid mismatched revisions or unofficial substitutes.

Technical Specifications

Application Fields

This part is commonly used to service NI-based systems in:

• Automated test equipment (ATE) in production lines (PXI/PXIe test racks)
• R&D labs and validation benches using CompactDAQ or controller-based DAQ
• Service depots recovering failed channels or timing/sync paths
• Field repair for long-life test stations where requalification time is tight

A device manufacturer recently shared that swapping the 782431-01 against the exact BOM line shortened their downtime to a single shift—no code changes, just a post-repair self-test in NI MAX and a quick run-off.

Advantages & Value

• Risk control: Exact-code replacement reduces integration risk compared with “equivalent” third-party parts.
• Lifecycle continuity: Keeps existing test sequences, drivers, and calibration data intact in most cases.
• Downtime reduction: Faster than redesigning or requalifying an alternative assembly.
• Traceability & compliance: Supports ISO/AS quality systems with clear part numbers and lot IDs.
• Technical backing: We can cross-check revisions against your chassis or module P/N before shipping.

Installation & Maintenance

• Environment: Install in a clean, dry cabinet or NI chassis with adequate ventilation; follow NI’s airflow guidelines.
• ESD handling: Wear grounded wrist straps, use ESD mats, and keep the assembly in its antistatic packaging until the moment of install.
• Wiring/backplane: Power off the system, reseat connectors carefully, and torque any fasteners to NI’s specified values.
• Post-repair checks: Run NI Self-Test/NI MAX, verify slot recognition, then perform a short functional check of the original signal path.
• Upkeep: Periodic dust removal with dry air (low pressure); update firmware/drivers on the host as recommended by NI.

Quality & Certifications

• Manufacturer quality system: ISO 9001 (NI global manufacturing, typically)
• Compliance: CE and RoHS for the applicable end product; the assembly follows the product’s compliance envelope
• Warranty: 365 days from delivery
• Traceability: NI part/serial identifiers retained for audits and service records

If you can share a photo of the module label or the host chassis model, we can verify revision compatibility for NI 782431-01 before you place the order. That small step usually prevents mix-ups between close part variants.