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12-Layer IT-180 PCB with Impedance Control – 1.6mm Through Holes PCB with Matt Red Solder Mask
12-Layer IT-180 PCB with Impedance Control – 1.6mm Through Holes PCB with Matt Red Solder Mask
Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.
Overview of This Type of PCB
This 12-layer printed circuit board (PCB) is built on IT-180A FR-4 base material with a glass transition temperature (Tg) of 170°C, designed to meet IPC-Class 2 quality standards. It has a total thickness of 1.6mm (±10%) and dimensions of 80.15mm x 76.6mm (1 piece per panel). Key features include matt red solder mask on both sides, white silkscreen on the top layer, and Electroless Nickel Immersion Gold (ENIG) surface finish.
12-Layer 1.6mm IT-180A and FR-4 PCB supports plated through holes (L1-L12), blind vias (L1-L5, L7-L10, L7-L12), and buried vias (L1-L5, L7-L10, L7-L12), with all 0.2mm and 0.3mm vias filled and capped per IPC 4761 Type VII. The PCB includes impedance control for differential pairs (50Ω, 90Ω, 100Ω) across the top layer, layer 3, layer 5, and layer 8, with trace/gap sizes ranging from 4mil/4mil to 7mil/6mil. It also requires printing of a series number and is available for worldwide shipping, with artwork supplied in Gerber RS-274-X format.
PCB Construction Details
Layer Type |
Layer No. |
Thickness (μm) |
Specification |
Copper |
1 |
45 |
18μm base copper + 25μm plating |
FR-4 |
PP |
150 |
IPC-4101/24 |
Copper |
2 |
17 |
— |
FR-4 IT-180 |
Core |
135 |
IPC-4101/24 |
Copper |
3 |
17 |
— |
FR-4 |
PP |
153 |
IPC-4101/24 |
Copper |
4 |
17 |
— |
FR-4 IT-180 |
Core |
115 |
IPC-4101/24 |
Copper |
5 |
17 |
— |
FR-4 |
PP |
94 |
IPC-4101/24 |
Copper |
6 |
17 |
— |
FR-4 IT-180 |
Core |
115 |
IPC-4101/24 |
Copper |
7 |
17 |
— |
FR-4 |
PP |
94 |
IPC-4101/24 |
Copper |
8 |
17 |
— |
FR-4 IT-180 |
Core |
115 |
IPC-4101/24 |
Copper |
9 |
17 |
— |
FR-4 |
PP |
150 |
IPC-4101/24 |
Copper |
10 |
17 |
— |
FR-4 IT-180 |
Core |
135 |
IPC-4101/24 |
Copper |
11 |
17 |
— |
FR-4 |
PP |
150 |
IPC-4101/24 |
Copper |
12 |
45 |
18μm base copper + 25μm plating |
Key Parameters |
— |
— |
Minimum hole size: 0.2mm; Solder mask thickness: 10μm; Minimum dielectric thickness: 100μm; Minimum trace width: 120μm; Minimum spacing: 125μm |
Additional Components & Features
This PCB supports 240 components, with 482 total pads (234 thru-hole pads, 138 top SMT pads, 110 bottom SMT pads) and 256 vias across 10 nets. It is engineered for lead-free assembly (260℃) and includes strict impedance control to ensure signal integrity for high-frequency applications.
Material Advantages (IT-180ATC)
IT-180ATC, the base material of this PCB, is a high-Tg (＞175℃ by DSC) filled epoxy with excellent performance:
Dielectric constant (DK): 4.1 at 10GHz; Dissipation factor: 0.017 at 10GHz
Thermal resistance: T260 ＞60 minutes, T288 ＞20 minutes
Minimum peel strength: 8 lbs/inch (standard ED copper)
CTE matched to copper (X: 11-13ppm/℃, Y: 13-15ppm/℃; Z-axis: 45ppm/℃)
Low moisture absorption (0.1%) and UL 94-V0 flammability rating
High thermal reliability and CAF resistance
Typical Applications
Ideal for demanding industries, including automotive (engine room ECU), backplanes, data storage, servers & networking, and telecommunications.
Why Choose This PCB?
This 12-layer PCB combines IT-180A FR-4’s thermal stability and CAF resistance with precise impedance control, reliable via filling, and lead-free compatibility—making it a durable choice for high-performance electronic systems. Its compliance with IPC-Class 2 standards and worldwide availability further ensure consistent quality and accessibility for global projects.
Order Now for Automotive, Server & Telecommunications Applications!
IT-180A FR-4 12-layer PCB delivers the stability and performance needed for automotive engine room ECUs, servers, and telecom equipment—order now to meet your high-reliability electronic project requirements.