Ceramic & Polymer Film Dielectric Breakdown Testing
Technical Specifications & Test Capabilities
| Parameter / Metric | Specification Range & Accuracy | Operational Notes |
|---|---|---|
| DC Breakdown Voltage | 0 to 50 kV (Ramp rate ≤ 1000 V/s) | Programmable ramp and step-stress modes |
| AC Breakdown Voltage | 0 to 10 kV (50/60 Hz) | High-voltage transformer with rapid arc cut-off |
| Testing Medium & Temp | High-dielectric silicone oil, RT to 180°C | Eliminates air surface flashover |
| Trip Current Sensitivity | Adjustable from 0.1 mA to 10 mA | Sub-millisecond arc detection |
Specimen Geometry & Preparation Guide
| Material Form | Recommended Dimensions | Dimensional Limits | Electrode & Poling Notes |
|---|---|---|---|
| Dielectric Thin Films | Symmetric sputtered electrodes Ø3–5 mm | Film area significantly larger than electrode | Prevents edge creepage flashover across borders |
| Electronic Ceramic Substrates | Diameter 35 ± 5 mm, thickness 1 ± 0.1 mm | Center printed electrode Ø8 ± 0.2 mm | Guards against boundary field concentration |
Testing Function
Dielectric breakdown strength (Eb) establishes the ultimate operating voltage limit and reliability safety margin for electrical insulating ceramics, power capacitor films, and high-voltage packaging substrates. Submerged in high-grade dielectric silicone oil up to 180°C, our system applies controlled voltage ramps up to 50 kV DC or 10 kV AC until puncture, capturing precise trip voltage, current surge transients, and statistical Weibull distributions.
Testing Conditions
Primary Instruments: VBT-50KV (DC), AC10KV System
Standard Turnaround: Within 5 working days
Key Standards: GB/T 1408.1-2016 Test Methods for Electrical Strength of Solid Insulating Materials; ASTM D149 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength; IEC 60243-1 Electric Strength of Insulating Materials - Test Methods
Sample Requirements
Please review the detailed specimen dimensions, electrode requirements, and poling conditions in the table above. Custom dimensions and special sample geometry can be accommodated upon technical consultation.
Testing Standards
- GB/T 1408.1-2016 Test Methods for Electrical Strength of Solid Insulating Materials
- ASTM D149 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength
- IEC 60243-1 Electric Strength of Insulating Materials - Test Methods
Test Results
Clients receive comprehensive test reports with raw exported ASCII/txt data files, high-resolution curve plots (temperature spectra, impedance plots, or hysteresis loops), and experimental condition parameters stamped by our CMA accredited testing center.
Turnkey Equipment for Your Own Laboratory
Prefer in-house characterization? Every test in our laboratory is performed using MatMeas turnkey instruments. Verify measurement quality with sample testing before capital procurement.
Request High-Precision Testing Solutions
Get expert guidance and customized instruments for your functional materials project.