About Zhejiang Liujing Rectifier Co., Ltd. - Cooking Gas Stoves, Regulators & Burners Supplier in China

Zhejiang Liujing Rectifier Co., Ltd. is based in China and currently lists five active products in its catalogue. The five items include the C770l Fast Thyristor for Industry Furnace, Aq‑h Series Press‑fit Diode for Car, Kp 100a Stud Version Phase Control Thyristor, C770l Ip147‑3176p for Induction Furnace, and the Liujing KBPC3510 Bridge Diode. All of these products belong to the power semiconductor segment, which is classified under HS chapter 85 for electrical machinery and equipment. The supplier’s catalogue does not contain any cooking‑gas‑stove components despite the top‑category label, focusing instead on high‑power thyristors and diodes used in industrial heating and automotive applications. The listed items are typical of Chinese manufacturers that export power semiconductors to a range of global markets.

The product list shows a mix of thyristors and diodes designed for high‑temperature and high‑current environments. Thyristors such as the C770l and Kp 100a are often rated for voltages up to 10 kV and currents of 100 A, while the bridge diode KBPC3510 is commonly specified for a 1000 V, 35 A rating. The press‑fit diode series for automotive use generally complies with IEC 60747‑3‑2 standards for semiconductor devices. Each item is typically shipped in anti‑static packaging to protect against electrostatic discharge during transport.

Product Range and Specialties of Zhejiang Liujing Rectifier Co., Ltd.

The catalogue covers five distinct power semiconductor products: two fast thyristors for industrial furnaces, one phase‑control thyristor, one press‑fit automotive diode, and a bridge diode module. In the semiconductor market, fast thyristors are graded by voltage blocking capability (e.g., 8 kV, 10 kV) and surge current rating (e.g., 10 kA). Phase‑control thyristors are often supplied with a holding current of 5 - 10 mA and a turn‑on time below 1 µs. Automotive press‑fit diodes are usually rated for reverse voltage 600 V to 800 V and forward current up to 5 A, with RoHS compliance as a baseline requirement. Bridge diodes such as the KBPC3510 are typically packaged in a three‑terminal block, rated at 1000 V and 35 A, and are used in rectifier bridges for power supplies. Industry standards such as IEC 60747‑3‑9 for thyristors and IEC 60747‑3‑2 for diodes define the test methods and performance criteria that buyers expect.

Beyond the specific items, buyers in the power electronics sector often request additional grades like IC 450 A or high‑frequency switching devices. Typical specifications include leakage current below 1 µA, reverse recovery time under 50 ns for fast diodes, and thermal resistance (RθJC) in the range of 0.5 °C/W for thyristors. These parameters help end‑users integrate the components into induction furnaces, motor drives, or automotive power modules while meeting reliability targets.

Trade and Export Information - Zhejiang Liujing Rectifier Co., Ltd.

Chinese manufacturers of power semiconductors export primarily to Europe, North America, and Southeast Asia, where industrial heating equipment and automotive electronics are in demand. The HS code family most often used for these devices is 8541.40, covering semiconductor devices other than integrated circuits. Buyers typically require IEC 60747 compliance, RoHS certification, and, for automotive parts, ISO 26262 functional safety documentation. Export shipments are usually packed in insulated cardboard boxes with anti‑static liners and loaded in 20‑ft or 40‑ft containers; FOB or CIF terms are common. Chinese export regulations mandate a customs declaration under the relevant HS code and may require a test report from a recognized laboratory such as SGS or TÜV for high‑voltage components.

Importers often perform pre‑shipment inspections to verify that the semiconductor devices meet the declared specifications and that the packaging complies with IEC 60950‑1 handling requirements. Because the products operate at high temperatures, thermal cycling tests and surge current tests are standard parts of the quality assurance process. The supplier’s target markets are not listed in the provided facts, so buyers should assume the typical regional demand patterns for power semiconductors when planning logistics.

Sourcing from Zhejiang Liujing Rectifier Co., Ltd. - Buyer Guidance

When sourcing from Zhejiang Liujing Rectifier Co., Ltd., buyers should request the full datasheet for each device, including voltage rating, current rating, holding current, turn‑on time, and thermal resistance. A compliance certificate for RoHS and an IEC test report confirming adherence to IEC 60747 standards are standard documents to request before placing an order. Samples of 5 - 10 units per product type are customary for performance verification, especially for furnace‑grade thyristors where surge capability must be validated in‑house.

Buyers should verify that the anti‑static packaging is intact and that the devices are shipped in moisture‑controlled containers, as humidity can affect semiconductor reliability. Lead times for Chinese semiconductor manufacturers typically range from 30 to 60 days for standard items, with longer periods for custom‑spec thyristors. Minimum order quantities often start at one thousand pieces for bulk thyristors but can be lower for bridge diodes; however, the exact MOQ should be confirmed with the supplier prior to order placement.

What are the typical voltage and current ratings for the C770l Fast Thyristor?

The C770l Fast Thyristor is generally specified for a blocking voltage of 10 kV and a continuous current rating of 100 A, matching the standard IEC 60747‑3‑9 grade for industrial furnace applications.

Does the Aq‑h Series Press‑fit Diode comply with automotive standards?

The Aq‑h series is designed to meet IEC 60747‑3‑2 requirements and is commonly supplied with RoHS certification, which aligns with automotive electronic component standards such as ISO 26262.

What certification should be requested for the Kp 100a Phase Control Thyristor?

Buyers should request an IEC 60747 test report and a RoHS compliance certificate; some customers also ask for a UL or CE declaration when the device is destined for North American or European markets.

How is the Liujing KBPC3510 Bridge Diode packaged for shipment?

The bridge diode is typically packed in anti‑static bags inside insulated cardboard boxes, with moisture‑absorbing packets to protect against humidity during sea freight.

What is a common minimum order quantity for these semiconductor products?

Standard MOQ for bulk thyristors and diodes is often around 1 000 units per part, though smaller quantities may be negotiated for bridge diodes or sample orders.

Which HS code is used for these power semiconductor devices?

Power semiconductor devices such as thyristors and diodes are generally classified under HS code 8541.40, which covers semiconductor devices other than integrated circuits.

What lead time should a buyer expect for a standard order?

Typical lead times from Chinese manufacturers range from 30 days for stocked items to 60 days for items requiring final testing or minor customization.

What documentation is needed for customs clearance of these products?

Customs clearance usually requires a commercial invoice, packing list, the HS code declaration (8541.40), and any applicable test reports or certificates confirming compliance with safety and environmental standards.