Customization: | Available |
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Type: | Rigid Circuit Board |
Dielectric: | FR-4 |
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PCB Material: | Composite of Ceramic, hydrocarbon and thermoset polymer |
Designator: | TMM4 |
Dielectric constant: | 4.5 ±0.045 (process); 4.7 (design) |
Layer count: | Single Sided, Double Sided, Multi-layer, Hybrid designs |
Copper weight: | 1oz (35µm), 2oz (70µm) |
Laminate thickness: | 15mil (0.381mm), 25mil (0.635mm), 30mil (0.762mm), 50mil (1.270mm), 60mil (1.524mm), 75mil (1.905mm), 100mil (2.540mm), 125mil (3.175mm), 150mil (3.810mm), 200mil (5.08mm), 250mil (6.35mm), 500mil (12.7mm) |
PCB size: | ≤400mm X 500mm |
Solder mask: | Green, Black, Blue, Yellow, Red etc. |
Surface finish: | Bare copper, HASL, ENIG, Immersion tin, Immersion Silver, Pure gold (no nickle under gold), OSP, ENEPIG |
TMM4 Typical Value | ||||||
Property | TMM4 | Direction | Units | Condition | Test Method | |
Dielectric Constant,εProcess | 4.5±0.045 | Z | 10 GHz | IPC-TM-650 2.5.5.5 | ||
Dielectric Constant,εDesign | 4.7 | - | - | 8GHz to 40 GHz | Differential Phase Length Method | |
Dissipation Factor (process) | 0.002 | Z | - | 10 GHz | IPC-TM-650 2.5.5.5 | |
Thermal Coefficient of dielectric constant | +15 | - | ppm/°K | -55ºC-125ºC | IPC-TM-650 2.5.5.5 | |
Insulation Resistance | >2000 | - | Gohm | C/96/60/95 | ASTM D257 | |
Volume Resistivity | 6 x 108 | - | Mohm.cm | - | ASTM D257 | |
Surface Resistivity | 1 x 109 | - | Mohm | - | ASTM D257 | |
Electrical Strength(dielectric strength) | 371 | Z | V/mil | - | IPC-TM-650 method 2.5.6.2 | |
Thermal Properties | ||||||
Decompositioin Temperature(Td) | 425 | 425 | ºCTGA | - | ASTM D3850 | |
Coefficient of Thermal Expansion - X | 16 | X | ppm/K | 0 to 140 ºC | ASTM E 831 IPC-TM-650, 2.4.41 | |
Coefficient of Thermal Expansion - Y | 16 | Y | ppm/K | 0 to 140 ºC | ASTM E 831 IPC-TM-650, 2.4.41 | |
Coefficient of Thermal Expansion - Z | 21 | Z | ppm/K | 0 to 140 ºC | ASTM E 831 IPC-TM-650, 2.4.41 | |
Thermal Conductivity | 0.7 | Z | W/m/K | 80 ºC | ASTM C518 | |
Mechanical Properties | ||||||
Copper Peel Strength after Thermal Stress | 5.7 (1.0) | X,Y | lb/inch (N/mm) | after solder float 1 oz. EDC | IPC-TM-650 Method 2.4.8 | |
Flexural Strength (MD/CMD) | 15.91 | X,Y | kpsi | A | ASTM D790 | |
Flexural Modulus (MD/CMD) | 1.76 | X,Y | Mpsi | A | ASTM D790 | |
Physical Properties | ||||||
Moisture Absorption (2X2) | 1.27mm (0.050") | 0.07 | - | % | D/24/23 | ASTM D570 |
3.18mm (0.125") | 0.18 | |||||
Specific Gravity | 2.07 | - | - | A | ASTM D792 | |
Specific Heat Capacity | 0.83 | - | J/g/K | A | Calculated | |
Lead-Free Process Compatible | YES | - | - | - | - |