Import Choke Coils — Buy in Bulk from Supplier in China

These choke coils are engineered for high-current applications with low DC resistance, optimized for use in power supplies, audio amplifiers, and communication equipment. The design prioritizes efficient current handling with minimal energy loss, using windings that reduce resistive heating under sustained load. The component is intended for circuits requiring stable impedance and common-mode noise filtering without significant core saturation.

The coils are typically constructed with copper wire of 16 AWG to 22 AWG, wound on toroidal or E-core ferrite or powdered iron substrates. Typical inductance ranges from 10 µH to 1 mH, with saturation currents between 2 A and 30 A. The compact profile allows integration into dense PCB layouts, and the low resistance design aligns with industry standards for efficiency-critical applications in consumer and industrial electronics.

Buyers in power supply manufacturing, LED driver design, and audio equipment assembly commonly source these coils for both new product development and repair markets. Packaging is in bulk reels or trays for pick-and-place compatibility. Trade terms are typically FOB or CIF, with MOQs negotiable depending on coil size and winding complexity. Buyers should request thermal rise data under load and confirm compliance with applicable electromagnetic compatibility standards.

Hefei Shirui Electronic Technology Co., Ltd. is located in Hefei, Anhui Province, China, at Unit D, Building 2, Shengang Digital Ind. The supplier is classified as imported and holds harbor trust tier status, indicating verified business registration. No public information confirms manufacturing capability, workforce size, or client references. The listing describes the company as a supplier of choke coils for electronic circuits, with no mention of certifications, R&D, or production volume.

The supplier’s profile suggests a trading or assembly role rather than full vertical integration. There are no claims regarding proprietary designs, testing equipment, or quality control processes. Response rate and response time are recorded as zero, indicating no active engagement on the platform. Buyers must treat all technical specifications as unverified and request supporting documentation before procurement.