How long does the delivery take?

Standard products take 10-15 working days. New customizations require an additional 5-7 days for samples. Large orders may take 15-30 days.

Can samples be provided and how are they charged?

Samples are available for serious customers. A sample fee is usually required but can be refunded or deducted after placing a bulk order. Lead time is 3-5 days.

What are possible reasons for transformer failure and is there a warranty?

Failures are often caused by overload, short circuits, or harsh environments. We provide a 1-year warranty and will repair or replace free for quality issues.

12 Volt Ee16 SMPS Copper Wire Power Ferrite Core Low High Frequency Flyback Transformer

Name: 12 Volt Ee16 SMPS Copper Wire Power Ferrite Core Low High Frequency Flyback Transformer
Brand: Hangzhou Udwells Technology Co., Ltd.
SKU: 2238055005

Zhejiang, ChinaHangzhou Udwells Technology Co., Ltd.

US$0.50-1.50

500 Pieces

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio

Phase

Single

Model NO.

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Multi-winding Transformer

Certification

ISO9001

Usage

Single-phase Transformer

Frequency Characteristics

Low Frequency

Shape of Core

Operating Temperature

-40ºCTO +125ºC

Storage Temperature

-25ºCTO+85ºC

Customize

Yes

Type

Ei/Toroidal

Installation Method

Vertical/Horizontal/with a Base/with a Cover

Transport Package

Export Standard Carton and Strong Pallet

Specification

EI Series Low Frequency Transformer

Origin

Zhejiang

Production Capacity

200000 PCS/Month

Key features

Wide Power Range: Output power spans from 0.3VA to 2000VA covering diverse application needs.

EI and Toroidal Cores: Available in EI-type and Toroidal core shapes for different efficiency requirements.

Customizable Design: Full customization available including type, installation method, and operating temperature.

ISO9001 Certified: Manufacturing process certified under ISO9001 quality management standards.

Pure Copper Winding: Uses 100% pure copper wire ensuring high conductivity and durability.

100% Factory Testing: All units undergo Hi-Pot, inter-winding, and load tests before shipment.

Shielding Option: Optional copper foil shielding layer available to suppress electromagnetic interference.

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: ≤2.75h

AI-Powered supplier vetting

SummaryHANGZHOU UDWELLS TECHNOLOGY CO. Ltd. is a combined company with a strong technological base and significant production capacity. It offers OEM services for popular brands and operates more than 10 production lines. However, there are gaps in R&D documentation and service capability procedures. The company does not hold SDKs for development, nor does it have overseas facilities or participate in trade shows. Its primary export market is Europe, and it has proximity to major ports in China.

Supplier typeThe supplier is identified as a 'Combined' type company, indicating a diverse business scope.

After-Sales capabilityThe supplier provides technical support for production and after-sales service but lacks documented procedures for service capability and customer complaint handling.

R&D capabilityThe company lacks R&D audit documentation and SDK availability, indicating limitations in software development and innovation processes.

Production capacityThe supplier operates 27 production lines, indicating robust manufacturing capacity. Its annual production output ranges from US$1 Million to US$2.5 Million.

Customization capabilityThe supplier provides OEM services for well-known brands, demonstrating its ability to customize production.

Product Q&A

Q:What specifications are needed for a 220V to 12V step down transformer?

Please provide Input Voltage, Output Voltage and Current, Rated Power (VA/W), Frequency (50Hz/60Hz), Construction type (Toroidal/EI/R), Installation method, and Insulation Grade.

Q:Which should I choose: Toroidal or traditional EI transformer?

Toroidal offers high efficiency and low interference but is larger and costlier. EI is smaller, lighter, cheaper, and easier to maintain, suitable for general industrial use.

Q:Is there a shielding layer in transformers and what is it used for?

Yes, a copper foil shielding layer can be added between primary and secondary coils to suppress high-frequency interference and enhance EMI resistance.

Q:How do you ensure the quality and service life of the transformer?

We use high-grade silicon steel and pure copper, apply VPI process for moisture resistance, and conduct 100% factory tests including Hi-Pot and load tests.

Q:What is the price and minimum order quantity (MOQ)?

Price depends on specifications and quantity. MOQ is typically 100pcs for standard specs and 500-1000pcs for fully custom specs requiring mold opening.