F4BME-1/2: Advanced Microwave PCB Laminate

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.

Especificaciones técnicas

Apariencia & Compliance

• Meets: National and Military Standards for microwave PCB laminates.

Types Available

• F4BME217, F4BME220, F4BME245, F4BME255, F4BME265, F4BME275, F4BME285, F4BME295, F4BME300, F4BME320, F4BME338.

Dimensiones & Personalización

• Standard sizes range from 300x250mm to 1500x1000mm.
• Custom sizes: Available upon request.

Espesor & Tolerancia

• Ranges from 0.25mm to 12.0mm, inclusive of copper thickness.
• Tolerances vary from ±0.025mm to ±0.20mm based on thickness.

Mechanical Properties

• Urdimbre: Dependent on thickness, max warp varies from 0.010mm to 0.050mm.
• Fuerza de corte/punzonado: No burrs for <1mm thick boards; delamination-free punching holes spaced min 0.55mm for <1milímetros, 1.10mm for >1mm thick boards.
• Fuerza de pelado: Under normal conditions ≥16N/cm; after environmental stress testing, ≥12N/cm.

Chemical Resistance

• 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.
• Densidad: 2.1-2.35 gramos/cm³.
• Absorción de humedad: ≤0.08% after 24hrs in distilled water at 20±2°C.
• Operating Temperature Range: -50°C to +260°C.
• Conductividad térmica: 0.3-0.5 W/mK.
• Coeficiente de expansión térmica (CTE): Varies with dielectric constant and temperature range.
• Factor de contracción: ≤0.0002% in boiling water for 2hrs.
• Surface & Resistividad de volumen: High under both normal and controlled humidity/temperature conditions.
• Constante dieléctrica & Factor de disipación: Detailed values provided for various frequencies and types.
• PIMD (Passive Intermodulation Distortion): -158 dBc @ 2.5GHz.

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