Magnalytix Offers Surface Insulation Resistance Testing Service for Electronics Reliability Validation

https://cdn.pcbdirectory.com/news/Untitled_design_7__639148598579997312.webp712370

Magnalytix, a provider of electronics reliability testing systems and services, provides Surface Insulation Resistance (SIR) testing services for evaluating the long-term reliability of electronic materials, assembly processes, and manufacturing chemistries under controlled environmental and electrical conditions. The company’s testing evaluates production process materials including solder masks, flux, paste, and wire, as well as assembly methods such as reflow, SMT parameters, cleaning methods, thru-hole soldering, wave soldering, selective soldering, and manual soldering.

The company conducts SIR testing by exposing circuits to controlled temperature, humidity, and electrical bias to identify potential electrochemical failure mechanisms. High-temperature and humidity aging tests are used to simulate long-term service conditions and assess material integrity, insulation resistance, and assembly durability.

Magnalytix uses SIR test board designs that represent current production hardware. The company offers test boards as kits with required assembly components, and standard designs are available for delivery upon order receipt. The test boards are designed for qualifying and validating assembly processes using leadless and bottom-terminated components.

The SIR testing process includes sample preparation in controlled environmental conditions, exposure to elevated temperature and humidity, and continuous monitoring of electrical resistance between conductors to detect leakage currents and potential failures.

Testing is conducted using the Magnalytix SIR System for automated real-time resistance measurements and environmental chambers designed to maintain controlled temperature and humidity conditions during testing. Magnalytix also provides standard SIR test cards for testing applications.

The company states that SIR testing supports product reliability evaluation, insulation resistance validation, material and process comparisons, manufacturing quality control, and long-term performance prediction. The testing also supports manufacturing qualification activities aligned with IPC J-STD-001J Section 8 cleanliness requirements.

Magnalytix provides detailed test reports containing resistance trends, environmental conditions, and failure detection data, along with graphical data interpretation and consultation related to test results and process analysis. Standard turnaround time for SIR testing is listed as 10 to 20 business days.

Customization options include custom voltage and humidity settings, extended duration testing, specialized test coupon designs, failure mode analysis with cross-sectional imaging, and comparative studies for process optimization.

The company states that SIR testing can be used to assess leakage current from ionic or active residues, detect electrochemical dendritic growth across conductors of opposite polarity, identify assembly residues that lower insulation resistance, validate manufacturing processes, investigate process-related failures, and evaluate process changes involving flux, cleaning agents, suppliers, and solder alloys.

Magnalytix supports SIR testing applications across aerospace and defense, automotive electronics, medical devices, telecommunications, consumer electronics, industrial equipment, advanced packaging, and artificial intelligence systems.

Click here to learn more about the SIR testing services.