What is the average lead time?

The average lead time is within 15 workdays for both peak and off-season.

Wholesale Air Winding Coil Common Mode Choke Model Gtc4339 20mh 4A

Name: Wholesale Air Winding Coil Common Mode Choke Model Gtc4339 20mh 4A
Brand: Suzhou Gujing Electronics Co., Ltd.
SKU: 2265438575

Jiangsu, ChinaSuzhou Gujing Electronics Co., Ltd.

US$0.50

100-999 Pieces

US$0.30

1,000-9,999 Pieces

US$0.10

10,000+ Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Gtc

Structure

Customized

Model NO.

GTC4339

Working Frequency

Customized

Structure of Winding

Customized

Nature of Operation

Customized

Structure of Magnetizer

Customized

Range of Application

Customized

Packaging Form

Power Coils

Brand

Gujing

Inductor Value

Customized

Supplier Type

Factory

Modelnumber

Gtc

Tolerance

Min

Rated Power

Customized

Mounting Type

Surface Mount

Operating

-40c~+125c Temperature

Cross Reference

Customized

Transport Package

Export Standard Package/Carton

Specification

CE, RoHs, UL certified

Trademark

Gujing

Origin

Jiangsu, China

Key features

Deep Customization: Excels at non-standard specs with full customization from samples or designs.

Fast Prototyping: Vertical integration enables quick sample production for rapid validation.

Expert Engineering Support: Provides comprehensive support from initial design to EMC solutions.

High Reliability: Consistent performance proven in demanding industrial and automotive applications.

High-Temp Materials: Uses high-grade iron silicon aluminum or specialty ferrites for stability.

Robust Construction: Features high-temp enamel wire and vacuum impregnation to prevent loosening.

100% Inspection: Every finished product undergoes visual and functional inspection.

Company profile

Importers and ExportersCooperated with Fortune 500Full CustomizationManagement Certification

Suzhou Gujing Electronics Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤5.63h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier offering 3D software design, ODM, OEM, and multiple customization options. It has documented procedures for service assessment, corrective and preventive actions, complaint handling, and finished-product inspection, with records indicating implementation. Innovation evidence includes new products within the past year, but no SDK is available. Production information shows one production line, five experienced export-trade staff, and no continuous quantity reconciliation for each batch or mass production. Financial figures are not assessed here because financial data is excluded. The supplier reports no overseas warehouse, showroom, agents or branches, and no participation in offline trade shows. No certification information, specific customer cases, or clearly documented after-sales service evidence is provided.

Supplier typeThe supplier explicitly identifies itself as a professional technical supplier and provides 3D software design services. It also offers ODM services and OEM services for popular brands, indicating design-and-manufacturing capability rather than only basic trading activity.

After-Sales capabilityThe supplier has a clear procedure and followed records for handling customer complaints effectively. This supports a documented complaint-handling process, although the slices do not describe response times, service outcomes, warranty coverage, or other broader after-sales provisions.

R&D capabilityThe supplier reports that it had new products during the past year and provides ODM services, supporting active product development capability. However, it explicitly has no available SDK, so the evidence supports product innovation but not SDK-based development capability.

Production capacityThe supplier has uniformly followed finished-product inspection instructions and documented procedures for service assessment and corrective/preventive actions. It reports one production line and five experienced export-trade staff, but does not continuously reconcile quantities for every batch or mass production, indicating a documented quality process with a stated production-control weakness.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. It also provides 3D software design services, giving direct evidence of broad customization and design-support capability.

Product Q&A

Q:What toroidal inductor series does Gujing offer and their applications?

GuJing's toroidal inductors mainly include: Power Toroidal Inductors: Made with iron silicon aluminum, iron powder, or high-performance ferrite cores. Used in switching power supplies (UPS, telecom, industrial) for PFC circuits, output filtering, and energy storage chokes. Features: high saturation current, low loss.

Q:What are Gujing's key advantages in toroidal inductors?

Core strengths: Deep customization (excels at non-standard specs), fast prototyping (vertical integration for quick samples), expert engineering support (from design to EMC solutions), and proven reliability (consistent performance for industrial/auto applications).

Q:How to efficiently work with Gujing for custom toroidal inductors in a pilot project?

Follow these steps: Prepare a spec sheet covering: Electrical: L value, test freq, Isat, Irms DCR Mechanical: max dimensions, pin type/spacing Environmental: temp range, certifications (UL/AEC-Q200) Application context (e.g., 'PFC inductor for 48V telecom power supply') Prioritize requirements (must-have vs. negotiable) Contact official sales/engineering channels directly Request samples for validation once specs are confirmed

Q:What is the minimum order quantity?

The minimum order quantity is 1000 Pcs.

Q:What are the payment terms?

Payment terms include LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.