ESD Shielding Bags from China Suppliers: Factory-Direct Protection for Sensitive Electronics against EMI and Static Discharge
Core Product Advantages
Integrates static dissipation and EMI shielding functions. The outer and inner electrostatic dissipative layers quickly release accumulated charges, keeping surface voltage below 100V; the middle aluminum metallization layer adopts Faraday cage principle, with a resistance of less than 100Ω (meeting international standards), effectively blocking 70% of external electromagnetic waves and reducing interference intensity to 1/1000.
Adopts multi-layer composite structure (PET + Aluminum Metallization + CPP/CPE + Anti-static Coating). PET layer enhances durability and puncture resistance, CPP/CPE layer ensures strong heat sealing and flexibility, and the overall design achieves excellent tensile strength (>18 lbs/inch) and moisture barrier performance (<0.2 g/100 sq.in/24h).
Silver-gray translucent appearance allows easy identification of internal items and barcode scanning without opening the bag. Available in flat bags, self-sealing bags, and zipper bags, with customizable thickness (75μm-120μm) to meet different packaging needs.
Fully complies with ROHS standards and passes strict international tests (ASTM D257, EIA 541, etc.). Static decay time is less than 0.03 seconds, and shielding effectiveness is less than 15 nJ, ensuring stable protection for sensitive components.
Key Technical Specifications
| Performance Indicator | Unit | Standard/Result | Test Method |
|---|---|---|---|
| Metal Layer Resistivity | Ω/sq | <1.0×10² | ASTM D257 |
| Inner/Outer Surface Resistance | Ω/sq | 10⁸ - 10¹⁰ | ASTM D257 |
| Static Decay Time | Second | <0.03 | FTMS 101 MTH 4046 |
| Friction Voltage | Volt | <100 | EIA 541 |
| Thickness | μm | 76±10% / 120±10% | Micrometer Measurement |
| Moisture Vapor Transmission Rate (MVTR) | g/100 sq.in/24h | <0.2 | ASTM E96 |
Wide Application Fields
Electronics & Semiconductors
PCBs, IC chips, semiconductors, hard drives, optical drives, and graphics cards.
Communication Equipment
Mobile phone motherboards, communication modules, and signal components.
Aerospace & Medical
Precision aerospace electronic parts and sensitive electronic components in medical devices.
LED & Optoelectronics
LED light strips, patches, lamp beads, and other optoelectronic components.
Why Choose Our ESD Shielding Bags?
Frequently Asked Questions
How do ESD shielding bags provide dual protection?
They combine static dissipative layers to quickly release charges (keeping surface voltage below 100V) with a middle aluminum metallization layer that forms a Faraday cage, blocking 70% of external electromagnetic waves.
What materials make up the structure of the bags?
The bags feature a multi-layer composite structure including PET (for durability and puncture resistance), Aluminum Metallization (for EMI shielding), CPP/CPE (for heat sealing and flexibility), and an Anti-static Coating.
Can I scan barcodes through these ESD shielding bags?
Yes. The bags have a silver-gray translucent appearance, which allows for easy identification of internal contents and direct barcode scanning without opening the package.
What test standards do these shielding bags comply with?
Our ESD shielding bags are fully compliant with ROHS standards and pass rigorous international tests, including ASTM D257 (for surface resistance) and EIA 541 (for static shielding).
What is the static decay time and moisture barrier performance?
The static decay time is exceptionally fast at less than 0.03 seconds. The moisture vapor transmission rate (MVTR) is less than 0.2 g/100 sq.in/24h, offering excellent moisture protection.