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Low Frequency Step up 12V to 220V 50Hz 60Hz Ei Step Down Transformer
US$0.50-1.50
500 Pieces
Product profile
Customization
AvailableApplication
Power, Electronic, Instrument, Lighting, Rectifier, AudioPhase
SingleModel NO.
EICore
Core-type TransformerCooling Method
Dry-type TransformerWinding Type
Multi-winding TransformerCertification
ISO9001Usage
Single-phase TransformerFrequency Characteristics
Low FrequencyShape of Core
EIOperating Temperature
-40ºCTO +125ºCStorage Temperature
-25ºCTO+85ºCCustomize
YesType
Ei/ToroidalInstallation Method
Vertical/Horizontal/with a Base/with a CoverTransport Package
Export Standard Carton and Strong PalletSpecification
EI Series Low Frequency TransformerOrigin
ZhejiangProduction Capacity
200000 PCS/MonthKey features
Wide Power Range: Available from 0.3VA to 2000VA with various EI core sizes.
Customizable Design: Offers full customization including voltage, frequency, and installation methods.
High-Quality Materials: Uses new high-grade silicon steel sheets and 100% pure copper wire.
Strict Quality Testing: 100% inspection including Hi-Pot, inter-winding, and load tests before shipment.
ISO9001 Certified: Manufacturing process meets international quality management standards.
Multiple Core Types: Provides both EI-type and Toroidal transformer options for different needs.
Shielding Option: Optional copper foil shielding layer to suppress electromagnetic interference.
Company profile
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: ≤3.73h
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?
A:
Please provide Input Voltage with fluctuation range, Output Voltage and Current, Rated Power (VA/W), Frequency (50Hz/60Hz), Construction type (Toroidal/EI/R), Installation method, and Insulation Grade.
Q:What is the difference between VA and W, and how should I choose?
A:
VA approximates W for resistive loads. For inductive loads like motors, W is less than VA. Select based on apparent power (VA) and leave a 20%-30% safety margin.
Q:Should I choose a Toroidal or traditional EI transformer?
A:
Toroidal transformers offer higher efficiency and less interference but are larger and costlier. EI transformers are smaller, lighter, cheaper, and easier to maintain for general industrial use.
Q:Is there a shielding layer in transformers and what is it used for?
A:
Yes, a copper foil shielding layer can be added between primary and secondary coils to suppress high-frequency interference and enhance EMI resistance, essential for audio and measuring instruments.
Q:How do you ensure the quality and service life of the transformer?
A:
We use high-grade silicon steel and pure copper wire, apply vacuum impregnation (VPI) for moisture resistance, and conduct 100% factory tests including Hi-Pot and load tests.
Send Inquiry
*To:
Hangzhou Udwells Technology Co., Ltd.
Hangzhou Udwells Technology Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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