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Arlon 44N is a high resin content multifunctional (175°C) epoxy prepreg system with a proprietary micordisperse ceramic filler system. 44N is engineered for the filling of clearance holes in thin Metal cores such as 0.006" Copperinvar- Copper or via holes in sequentially laminated MLB designs. Based on Arlon's 45N, the 44N system is compatible with conventional epoxy lamination and fabrication.

Polymer Name: Epoxy Resins & Compounds

Processing Methods: Injection Molding

End Uses: Automotive Under The Hood, Computer Components, Electrical/Electronic Applications, Laminates

Technical Data Sheet
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Properties

Physical Form
Mechanical Properties
ValueUnitsTest Method / Conditions
Peel Strength to Copper (1 oz/35 micron) After Thermal Stress8lb/in (N/mm)IPC TM-650 2.4.8
Peel Strength to Copper (1 oz/35 micron) at Elevated Temperatures8lb/in (N/mm)IPC TM-650 2.4.8.2
Peel Strength to Copper (1 oz/35 micron) After Process Solutions8lb/in (N/mm)IPC TM-650 2.4.8
Young's Modulus2.8Mpsi (GPa)IPC TM-650 2.4.18.3
Poisson's Ratio0.15-ASTM D-3039
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.85-ASTM D 792
Water Absorption (0.062)0.1%IPC TM-650 2.6.2.1
Thermal Properties
ValueUnitsTest Method / Conditions
Glass Transition Temperature (Tg) - DSC175°CIPC TM-650 2.4.25
Coefficient of Thermal Expansion (X,Y)14 - 16ppm/°CIPC TM-650 2.4.41
Coefficient of Thermal Expansion (Z) - Below Tg55ppm/°CIPC TM-650 2.4.24
Coefficient of Thermal Expansion (Z) - Above Tg200ppm/°CIPC TM-650 2.4.24
z-axis Expansion (50-260oC)2.4%IPC TM-650 2.4.24
Thermal Conductivity0.3W/m/K
Electrical Properties
ValueUnitsTest Method / Conditions
Electrical Strength1500Volts/mil (kV/mm)IPC TM-650 2.5.6.2
Dielectric Constant (1 MHz)4.2 to 4.6-IPC TM-650 2.5.5.3
Dissipation Factor (1 MHz)0.025-IEC 60250
Volume Resistivity (C96/35/90)2.6 x 10^7MΩ-cmIPC TM-650 2.5.17.1
Volume Resistivity (E24/125)3.3 x 10^7MΩ-cmIPC TM-650 2.5.17.1
Surface Resistivity (C96/35/90)4.0 x 10^4IPC TM-650 2.5.17.1
Surface Resistivity (E24/125)2.9 x 10^7IPC TM-650 2.5.17.1
Arc Resistance65sASTM D 495
Flammability
ValueUnitsTest Method / Conditions
FlammabilityV0classUL-94

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