How long does delivery take?

Standard/small orders 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 the common reasons for transformer failure?

Common causes include overload, short circuits, and harsh environments (high temperature/humidity) leading to insulation aging.

What warranty is provided?

We provide a 1-year warranty. Quality issues will be repaired or replaced for free.

5va Low Frequency 120V to 12V Power Electronic Transformer

Name: 5va Low Frequency 120V to 12V Power Electronic Transformer
Brand: Hangzhou Udwells Technology Co., Ltd.
SKU: 2230869555

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: Available from 0.3VA to 2000VA to meet diverse application needs.

Customizable Design: Offers EI and Toroidal types with flexible installation and shielding options.

High Quality Materials: Uses new high-grade silicon steel sheets and 100% pure copper wire.

Rigorous Testing: 100% factory inspection including Hi-Pot, load, and no-load current tests.

Broad Application: Suitable for power, electronics, instruments, lighting, and audio equipment.

Flexible Customization: Supports custom input/output voltage, frequency, and insulation classes.

ISO9001 Certified: Manufactured under ISO9001 quality management system standards.

Professional Support: Provides technical consultation for specification selection and troubleshooting.

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: ≤3.30h

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 custom transformer?

Please provide input voltage, output voltage/current, rated power (VA/W), frequency, construction type, installation method, and insulation grade.

Q:How do I choose between Toroidal and EI transformers?

Toroidal transformers offer higher efficiency and less interference but are costlier. EI transformers are more cost-effective and easier to maintain for general industrial use.

Q:What is the function of a shielding layer in a transformer?

A shielding layer (copper foil) between coils suppresses high-frequency interference, enhancing electromagnetic interference (EMI) resistance, essential for audio and measuring instruments.

Q:How is the quality and lifespan of the transformer ensured?

Quality is ensured through high-grade materials, vacuum impregnation (VPI) process, and 100% factory testing including Hi-Pot and load tests.

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

Price and MOQ depend on specifications. Standard specs may have an MOQ of 100pcs, while full customization may require 500-1000pcs due to mold opening.