Black 1MM Thickness Standard Fr4 Copper Clad Sheet PCB Circuit Boards

PCB parameter:

Material: FR4 KB6165F

Brand:ONESEINE

PCB board thickness: 1.0mm

Number of layers: Double sided

Plate size: 79.48 * 35.6mm

Minimum aperture: 0.332mm

Line width/spacing: 0.42 * 0.46mm

Copper foil thickness: 1/1OZ

Surface treatment: HASL

Solder mask/Character: Green oil white silkscreen

ONESEINE'S STANDARD FR-4 MATERIAL PROPERTIES

High Glass Transition Temperature (Tg) (150Tg or 170Tg)

High Decomposition Temperature (Td) (> 345º C)

Low Coefficient of Thermal Expansion (CTE) ((2.5%-3.8%)

Dielectric Constant (@1 GHz): 4.25-4.55

Dissipation Factor (@ 1 GHz): 0.016

UL rated (94V-0, CTI = 3 minimum)

Compatible with standard and lead-free assembly.

Laminate thickness available from 0.005” to 0.125”

Pre-preg thicknesses available (approximate after lamination):

(1080 glass style) 0.0022”

(2116 glass style) 0.0042”

(7628 glass style) 0.0075”

Beyond Green: Why Engineers Are Switching to Black 1mm FR4 PCBs for Elite Performance

Hook:
In a world of emerald-green circuit boards, black FR4 isn’t just a style choice—it’s a silent revolution in signal integrity, stealth, and structural strength. Discover why R&D teams from automotive to aerospace are adopting these 1mm-thick obsidian warriors as their new standard.

The Hidden Cost of "Standard" Green
Picture this: Your sleek new IoT sensor fails EMI testing. Debugging reveals ambient light scattering through the PCB substrate, disrupting optical components. Or worse—a vibration-heavy industrial robot cracks its 0.8mm board after 12 months. These aren’t hypotheticals. They’re daily battles engineers fight because conventional PCBs prioritize cost over context.

Enter the Black 1mm FR4 Cavalry
Our jet-black FR4 copper clad sheets solve what green boards ignore:
✅ Stealth Signal Integrity

Light Absorption: Near-zero reflection (LRV <5%) prevents optical interference in LiDAR/sensor arrays.

EMI Shielding: Carbon-rich resin reduces crosstalk in dense designs.

✅ 1mm Structural Fortress

2X rigidity vs. 0.8mm boards (deflection <0.5mm @ 50N load).

Withstands 20G vibration (MIL-STD-202G).

Ideal for edge-mounted connectors & heavy components.

✅ FR4’s Uncompromised Value

Tg 140°C thermal resilience at 40% lower cost than exotic laminates.

1oz/2oz copper options (35μm/70μm) for power-hungry designs.

Real-World Wins:
A drone maker cut optical sensor errors by 68% after switching to black PCBs.

An automotive tier-1 supplier eliminated dashboard PCB warping with 1mm boards.

Medical device teams passed FDA EMI tests on first attempt using light-absorbing substrates.

Where Black FR4 Shines:
Optoelectronic Systems: LiDAR, IR sensors, endoscopic cameras

Consumer Tech: Premium wearables, gaming hardware, AR/VR

Auto & Aerospace: Cockpit displays, flight control modules

Industrial: Robotics control boards, HMI panels

Engineer’s Corner:
“We used black 1mm FR4 for a military comms device—not just for stealth. The thickness handled shock tests green boards failed, saving 6 weeks of redesign.”
– Senior RF Designer, Defense Contractor