Import Custom-Made Pcb Toroidal Transformer — Buy in wholesale FOB from Supplier in China

The Custom‑Made PCB Toroidal Transformer supplied by Tianjin Grewin Technology Co., Ltd. is manufactured under ISO 9001:2015, CE, SGS and IEC approvals, confirming conformity with international safety and performance standards. The unit incorporates a self‑developed toroidal core with a thermal conductivity of 0.9 W kg‑¹, which contributes to low power loss and reduced temperature rise. Pin count and winding layout are fully configurable, allowing the number of pins to be increased or decreased according to the customer’s schematic. The transformer body is moisture‑proof and mould‑prevention treated, suitable for harsh operating environments.

In the transformer market, typical specifications for low‑profile toroidal units include a power rating between 5 W and 500 W, a nominal voltage range of 110 V‑240 V and a frequency of 50 Hz or 60 Hz. Efficiency is commonly above 95 % and temperature rise is limited to less than 50 °C at full load, which matches the performance claims of this design. Standard insulation class is B, providing a dielectric strength of around 10 kV, and the winding material is copper with a typical resistance of 0.02 Ω per turn. Physical dimensions usually fall within an outer diameter of 50 mm to 200 mm and a thickness of 20 mm to 80 mm, but exact size is defined by the custom winding configuration.

The transformers are employed in audio equipment, telecommunications, electric control panels, renewable‑energy converters and cable‑TV distribution networks, where compact size and low electromagnetic interference are valued. Buyers such as OEMs, system integrators and contract manufacturers specify these units to achieve high efficiency and space‑saving designs. Tianjin Grewin Technology Co., Ltd. indicates that order quantities are adjusted per project and that shipping can be organised on FOB or CIF terms after the design is finalised. Payment conditions and lead times are negotiated directly with the supplier and should be confirmed before production commences.

Tianjin Grewin Technology Co., Ltd. is located at 2# Meinian Plaza No.16 Dongting Road, Tianjin, 300222, China. The company carries a harbour‑level trust tier, indicating that its business credentials have been verified by the marketplace. Its public profile records a response rate of 0 % and no average response time, showing that no replies have been logged to date.

The supplier’s listing highlights its capability to produce custom‑made PCB toroidal transformers for a range of applications, but it does not disclose details such as annual production capacity, year of establishment or client references. Prospective buyers should therefore confirm manufacturing lead times, quality‑control procedures and any additional certifications directly with Tianjin Grewin Technology Co., Ltd.