Onlitex Electronic Holding Ltd.

Onlitex Electronic Holding Ltd. is based in China and lists nine active products in its catalogue. The portfolio focuses on printed circuit board (PCB) technologies, covering both rigid and flexible formats. Items include an aluminum material base circuit board, flexible PCB (OEM), printed circuit board, flexible printed circuit board (FPC), rigid‑flexible printed circuit board, Teflon circuit board, membrane switch, metal dome, and a standard printed circuit board. Each entry is classified under the PCB category without additional HS‑code details in the source data. The supplier is marked as an imported tier with a harbor trust level.

The listed products span a range of substrate materials such as aluminum, Teflon, and flexible polymers, which are common in high‑frequency and thermal management applications. Flexible printed circuit boards (FPC) and rigid‑flex designs enable multilayer interconnections for compact electronic devices. Membrane switches and metal domes are electromechanical components often integrated with PCB assemblies for user‑interface functions. Although the source data does not include HS codes, these items generally fall under HS chapter 85, which covers electronic components. The nine‑product set reflects a focused offering within the broader PCB market.

Onlitex’s catalogue includes aluminum‑base circuit boards, which are typically used for power electronics and LED modules where heat dissipation is critical. Standard specifications for aluminum PCBs involve a copper thickness of 1 oz/ft² (35 µm) on a 1 mm aluminum core, with a dielectric layer of epoxy resin. Flexible PCBs listed as OEM or FPC are usually fabricated from polyimide or polyester films, offering bend radii as low as 1 mm and copper thicknesses from 0.5 oz to 2 oz. Rigid‑flex boards combine a rigid FR‑4 core with flexible polyimide layers, allowing mixed‑technology assemblies in aerospace and medical devices. Teflon circuit boards provide low dielectric constant (≈2.1) and low loss for microwave frequencies, commonly manufactured to IPC‑6012 Class 3 standards.

The membrane switch and metal dome components are typically produced in silicone or polyester substrates, with contact ratings up to 50 mA and operating temperatures from - 40 °C to +85 °C. Printed circuit board offerings without a specified substrate generally follow FR‑4 material with standard 1.6 mm thickness, copper weight 1 oz, and IPC‑2221 design rules. Industry buyers frequently request RoHS compliance, UL 94 flammability ratings, and IPC‑A‑600 visual inspection standards for these products. Typical HS code for printed circuit boards is 8534.00, while flexible boards may be classified under 8542.39.