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 a bulk order. Lead time is 3-5 days.

What causes transformer failure and is there a warranty?

Failures are often due to overload, short circuits, or harsh environments. We provide a 1-year warranty covering free repair or replacement for quality issues.

Customize Various 5V 12V 24V 220V Step up Step Down Ei 6622 Power Transformer for Access Control System

Name: Customize Various 5V 12V 24V 220V Step up Step Down Ei 6622 Power Transformer for Access Control System
Brand: Hangzhou Udwells Technology Co., Ltd.
SKU: 2238081185

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 Voltage Range: Supports 5V, 12V, 24V, and 220V input/output configurations.

EI Core Design: Core-type EI structure ensures efficient magnetic coupling and stability.

Dry Type Cooling: Air-cooled dry-type transformer suitable for various indoor environments.

ISO9001 Certified: Manufacturing process meets international quality management standards.

Multi-winding Capability: Flexible multi-winding design supports complex power distribution needs.

Custom Installation: Available in vertical, horizontal, with base, or with cover options.

Full Customization: Flexible customization from samples, designs, or full specifications.

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: ≤3.32h

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:Which should I choose: Toroidal or EI transformer?

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

Q:Is there a shielding layer in transformers?

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 quality and service life?

We use high-grade silicon steel, 100% pure copper, Class B+ insulation, VPI process, and conduct 100% factory tests including Hi-Pot, inter-winding, and load tests.

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

Price depends on power, materials, and complexity. MOQ is lower for standard specs (e.g., 100pcs) and higher for custom molds (e.g., 500-1000pcs). Larger quantities reduce unit price.

Q:How long does delivery take?

Standard/small orders: 10-15 working days. Custom samples: +5-7 days. Large orders: 15-30 days. Delivery may vary with raw material price fluctuations.