GORE® MEMS Protective Vents Style 100
GORE® MEMS Protective Vents Style 100 (part number VP1001MPX) are oleophobic ePTFE membrane adhesive vent components designed for installation on printed circuit boards over MEMS microphone sound inlets. Delivered in reel format at 2,000 pieces per reel for high-speed SMT pick-and-place installation, these vents provide filtration efficiency capable of preventing particles ≥1 μm from reaching the microphone during PCB assembly and reflow soldering operations. The vent outer diameter is 3.6 mm with a 1.6 mm inner diameter and a typical thickness of 0.15 mm.
The vent delivers minimum airflow of 7.5 L/H at 70 mBar and uses a silicone-based adhesive with temperature resistance up to 260 °C for 3 minutes — compatible with standard reflow soldering profiles. The white ePTFE membrane is oleophobic and breathable, maintaining acoustic test compatibility after installation. The reel pitch is 6.55 mm with a plastic core inner diameter of 15.24 cm (6″), and a protective plate outer diameter of ≤ 240 mm.
Key Properties
- Particle Filtration: Can prevent ≥1 μm particles
- Minimum Airflow: 7.5 L/H @ 70 mBar
- Adhesive Temperature Resistance: Max. 260 °C for 3 minutes
- Vent Outer / Inner Diameter: 3.6 mm / 1.6 mm
- Typical Thickness: 0.15 mm
- Membrane Type / Characteristic: ePTFE / Oleophobic
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Product Performance Characteristics
| Property | Value | Test Method |
| Part number | VP1001MPX | — |
| Membrane type | ePTFE | — |
| Membrane characteristic | Oleophobic | — |
| Membrane color | White | — |
| Particle filtration | Can prevent ≥1 μm particles | — |
| Minimum airflow | 7.5 L/H @ 70 mBar | — |
| Adhesive type | Silicone based | — |
| Adhesive temperature resistance | Max. 260 °C for 3 minutes | — |
Vent Dimensions
| Property | Value | Test Method |
| Outer diameter | 3.6 mm | Tolerance ±0.1 mm |
| Inner diameter | 1.6 mm | Tolerance ±0.1 mm |
| Typical thickness | 0.15 mm | — |
Reel Dimensions
| Property | Value | Test Method |
| Pitch (distance between each vent on liner) | 6.55 mm | — |
| Reel width | 8.00 ± 0.2 mm | — |
| Blank leader (start of reel) | 200 mm | — |
| Protective plate outer diameter | ≤ 240 mm | — |
| Plastic core inner diameter | 15.24 cm (6″) / 152.4 mm | — |
| Quantity per reel | 2,000 pieces | — |
- PCB-level MEMS microphone sound inlet protection during SMT assembly and reflow soldering operations
- Particle contamination prevention at microphone ports in high-volume consumer electronics PCB manufacturing
- Reflow-compatible breathable protection for top-port and bottom-port MEMS microphone configurations
- Defect rate reduction in SMT/FATP manufacturing operations handling MEMS microphone-equipped circuit boards
- Acoustic-test-compatible vent integration enabling post-reflow microphone performance verification without vent removal
Common industries: Consumer electronics, mobile devices, PCB assembly, SMT manufacturing, MEMS microphone supply chain.
GORE® MEMS Protective Vents Style 100 address contamination risk at MEMS microphone sound inlets during PCB assembly operations. MEMS microphones are vulnerable to environmental particles and solder residue during reflow soldering, which can cause performance degradation, manufacturing defects, yield loss, and field returns.
Style 100 vents are installed directly on the circuit board over the microphone sound inlet prior to assembly and reflow, providing a breathable filtration barrier that reduces defect rates from a range of 1,000–10,000 PPM down to below 10 PPM.
The reel packaging format with 2,000 pieces per reel and 6.55 mm pitch is compatible with high-speed SMT pick-and-place machines. Installation is automated: the reel feeds through the feeder releasing one vent at a time onto the platform; an infrared sensor stops the feeder at the correct position; a vacuum nozzle picks up the vent; and the nozzle automatically moves into position and attaches the vent to the microphone port.
The vent is compatible with both top-port and bottom-port MEMS microphone configurations. After reflow soldering and assembly, the vent remains in place and is compatible for acoustic testing.
What differentiates GORE® MEMS Protective Vents Style 100 from conventional PCB assembly protection methods?
Style 100 vents provide particle filtration at ≥1 μm with an oleophobic ePTFE membrane that remains breathable — preserving acoustic test compatibility after installation. This allows manufacturers to test microphone performance through the vent without removal. The reel format with 6.55 mm pitch enables seamless integration with existing high-speed SMT pick-and-place equipment, making Style 100 a drop-in addition to standard PCB assembly processes without requiring dedicated protective tooling or manual handling steps.
Why does filtration efficiency matter at the MEMS microphone sound inlet during PCB assembly?
MEMS microphone sound inlets are directly exposed to environmental particles and solder flux residue during reflow soldering. Even sub-10-micron particles that enter the sound inlet can mechanically interfere with the microphone's sensor element, causing performance degradation or outright failure. Contamination-related defects in high-volume PCB assembly operations can drive defect rates of 1,000–10,000 PPM, with associated costs in rework, field returns, and warranty claims. Style 100 vents reduce this to below 10 PPM by providing a pre-installed filtration barrier rated to ≥1 μm.
What is the adhesive temperature resistance for GORE® MEMS Protective Vents Style 100?
The silicone-based adhesive resists temperatures up to 260 °C for 3 minutes, which is compatible with standard reflow soldering profiles.
Are GORE® MEMS Protective Vents Style 100 suitable for regulated manufacturing environments?
No compliance standards are specified on the manufacturer's TDS for this material. The vent is designated for industrial use only and is not for use in food, drug, cosmetic, or medical device manufacturing, processing, or packaging operations.
How should GORE® MEMS Protective Vents Style 100 be specified?
Specify part number VP1001MPX, microphone port configuration (top port or bottom port), reel quantity (2,000 pieces per reel), and confirm compatibility with the pick-and-place machine feed system using the reel pitch (6.55 mm) and core inner diameter (152.4 mm / 6") specifications provided in the installation guideline.
