F4BME-1/2: Advanced Microwave PCB Laminate Overview
F4BME-1/2 is a high-performance microwave circuit board laminate crafted by laminating varnished glass cloth with Teflon (Ptfe) resina, following stringent scientific formulations and technology processes. This product offers significant enhancements over the F4BM series in terms of electrical performance and passive intermodulation indicators.
Specifiche tecniche
Aspetto & Compliance
- Meets: National and Military Standards for microwave PCB laminates.
Types Available
- F4BME217, F4BME220, F4BME245, F4BME255, F4BME265, F4BME275, F4BME285, F4BME295, F4BME300, F4BME320, F4BME338.
Dimensioni & Customization
- Standard sizes range from 300x250mm to 1500x1000mm.
- Custom sizes: Available upon request.
Spessore & Tolleranza
- Ranges from 0.25mm to 12.0mm, inclusive of copper thickness.
- Tolerances vary from ±0.025mm to ±0.20mm based on thickness.
Proprietà meccaniche
- Warp: Dependent on thickness, max warp varies from 0.010mm to 0.050mm.
- Forza di taglio/punzonatura: No burrs for <1mm thick boards; delamination-free punching holes spaced min 0.55mm for <1mm, 1.10mm for >1mm thick boards.
- Forza della pelatura: Under normal conditions ≥16N/cm; after environmental stress testing, ≥12N/cm.
Resistenza chimica
- Suitable for standard PCB etching methods without altering dielectric properties.
- Requires sodium or plasma treatment for plating through holes.
- Hot Air Level temperature must not exceed 253°C and cannot be repeated.
- Densità: 2.1-2.35 g/cm³.
- Assorbimento di umidità: ≤0.08% after 24hrs in distilled water at 20±2°C.
- Operating Temperature Range: -50°C to +260°C.
- Conducibilità termica: 0.3-0.5 W/mK.
- Coefficiente di dilatazione termica (Cte): Varies with dielectric constant and temperature range.
- Fattore di restringimento: ≤0.0002% in boiling water for 2hrs.
- Surface & Resistività al volume: High under both normal and controlled humidity/temperature conditions.
- Costante dielettrica & Fattore di dissipazione: Detailed values provided for various frequencies and types.
- PIMD (Passive Intermodulation Distortion): -158 dBc @ 2.5GHz.
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