Do you provide after-sales service?

Yes, we provide perfect after-sales service and timely delivery.

What is the quality inspection process?

We perform 100% inspection on finished products, including visual and function checks.

High Frequency ED2021 Vertical Pin5+4 Ferrite Core Bobbin

Name: High Frequency ED2021 Vertical Pin5+4 Ferrite Core Bobbin
Brand: Hangzhou Udwells Technology Co., Ltd.
SKU: 2234120875

Zhejiang, ChinaHangzhou Udwells Technology Co., Ltd.

US$0.01-0.80

1,000 Pieces

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio

Phase

Single

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Multi-winding Transformer

Certification

ISO9001

Usage

Single-phase Transformer

Frequency Characteristics

High Frequency

Shape of Core

Material

Phenolic

Transport Package

Export Standard Carton and Strong Pallet

Specification

EF Series Transformer Bobbin

Origin

Zhejiang

Production Capacity

100000 Pieces/Month

Key features

Custom Design Capability: Offers full customization, flexible customization, and minor customization based on samples or designs.

Wide Bobbin Range: Supplies EE, EEL, EI, EC/ER, EF, EFD, ETD, POT, PQ, RM, UU/UF, GU shapes with matching cores.

Competitive Pricing: Provides the most competitive mainland China prices for high-frequency bobbins.

High Stability Material: Made of thermosetting material (Bakelite/Plastic) that is resistant to deformation.

Smooth Surface Finish: Features a smooth surface ideal for transformers requiring high temperature resistance.

OEM and ODM Services: Available OEM and ODM services with 1 R&D engineer for product development.

100% Quality Inspection: All finished products undergo 100% visual and function inspection before delivery.

Company profile

High Repeat Buyers ChoiceFast DeliveryPrivate MoldQuality Assurance

Hangzhou Udwells Technology Co., Ltd.

Zhejiang, 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: 3 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤4.41h

AI-Powered supplier vetting

SummaryHANGZHOU UDWELLS TECHNOLOGY CO. Ltd. was founded in 2008 and reports a self-built plant exceeding 15,000 square meters, more than 10 production lines, Europe as a primary export market, and peak-season order fulfillment within 15 working days. It provides multiple customization options, ODM services, and has launched new products within the past year. The supplier also reports OEM service for well-known brands and quality assurance in its quality-control processes. However, no R&D audit documentation, SDK, approved-supplier list, written service procedures, corrective/preventive-action procedures, or complaint-handling procedures were available. Overseas warehouses, showrooms, agents or branches, and offline trade-show participation were not reported. Financial information is insufficient for a credibility judgment, and sustainability-related fire-drill and environmental-assessment status is unknown.

After-Sales capabilityTechnology engineers are responsible for technical support during production and after-sales service, but the supplier has no written procedures or records for effective service assessment, corrective and preventive actions, or customer complaint handling. It also has no overseas warehouse, showroom, agent, or branch, limiting evidence of structured or localized after-sales support.

R&D capabilityThe supplier reports new products within the past year, ODM capability, customization-related R&D services, and use of PS and CAD. It also reports OEM service for well-known brands. Countervailing evidence includes only one year of total R&D engineer experience, no available SDK, and no R&D design-input, output, review, verification, or validation documents for audit.

Production capacityThe supplier reports a self-built plant exceeding 15,000 square meters, more than 10 production lines, complete testing facilities, and peak-season order fulfillment within 15 working days. These explicit operating-scale and delivery statements support a production-capability advantage, although the number of quality-control staff is listed as unavailable.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, flexible customization, and minor customization. It also provides ODM services, demonstrating broad stated customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands and identifies Europe as a primary export market. These statements indicate some brand and export experience, but no customer names, project details, order references, or verifiable case documentation are provided.