High-Frequency TP450 2-Layer PCB with 2.6mm Thickness for Aerospace Applications
1.Introduction
TP450 is a unique high-frequency thermoplastic material composed of ceramic-filled polyphenylene oxide (PPO) resin without fiberglass reinforcement. This innovative formulation allows precise adjustment of dielectric constant (Dk) between 3 to 25 to meet specific circuit requirements, with TP450 optimized for Dk 4.5±0.2 at 10GHz.
Key advantages include:
Ultra-low dissipation factor (0.0010 at 10GHz) for high-frequency efficiency.
Exceptional thermal stability with low TCDk (-50 ppm/°C) and balanced CTE (50/50/60 ppm/°C).
Moisture resistance (0.01% absorption) and UL 94-V0 flammability rating for harsh environments.
Unlike traditional laminates, TP series materials offer smooth surfaces without fiberglass weave, reducing signal loss and enabling consistent RF performance. The absence of reinforcement also simplifies machining for complex aerospace and defense applications.
2.Features (TP450)
| Property | Specification |
|---|---|
| Dielectric Constant (Dk) | 4.5±0.2 at 10GHz |
| Dissipation Factor (Df) | 0.0010 at 10GHz |
| TCDk | -50 ppm/°C (-55°C to 150°C) |
| CTE (X/Y/Z) | 50/50/60 ppm/°C |
| Thermal Conductivity | 0.44 W/mK |
| Moisture Absorption | 0.01% |
| Flammability Rating | UL 94-V0 |
3.PCB Specifications at a Glance
| Parameter | Specification |
|---|---|
| Base Material | TP450 |
| Layer Count | 2 (Double Sided) |
| Board Dimensions | 121mm × 125mm (±0.15mm) |
| Minimum Trace/Space | 6/4 mils |
| Minimum Hole Size | 0.5mm |
| Via Type | Through-hole only (No Blind Vias) |
| Finished Thickness | 2.6mm |
| Copper Weight | 1oz (35μm) outer layers |
| Via Plating Thickness | 20μm |
| Surface Finish | ENIG (Electroless Nickel Immersion Gold) |
| Silkscreen | None (Top & Bottom) |
| Solder Mask | None (Top & Bottom) |
| Electrical Testing | 100% tested prior to shipment |
4.PCB Stackup: 2-layer rigid PCB
Copper_layer_1 - 35 μm TP450 Core - 2.54 mm (100mil) Copper_layer_2 - 35 μm
5.PCB Statistics:
Components: 23
Total Pads: 80
Thru Hole Pads: 56
Top SMT Pads: 24
Bottom SMT Pads: 0
Vias: 93
Nets: 2
6.Typical Applications
Satellite navigation systems
Missile guidance and fuzes
Miniaturized high-frequency antennas
Aerospace radar and communication
7.Quality Assurance
IPC-Class 2 compliant
100% electrical tested
Global availability
Gerber RS-274X support
This TP450 PCB combines customizable dielectric properties with rugged reliability, making it ideal for mission-critical RF and microwave systems.