What are your payment terms?

We accept T/T, L/C, Western Union, and PayPal. For first-time cooperation, T/T advance is the most common option.

Can you make customized products?

Absolutely. We offer full customization based on your designs or specifications -just share your requirements and we'll handle the rest.

Yes, OEM projects are welcome. We can manufacture products according to your specifications and brand requirements.

Is it ok to print my logo on the label?

Yes, we can print your logo on the label exactly as you designate. Just send us your artwork files for confirmation.

Can your factory print our brand on the product?

Yes, we can add your logo or branding onto the product itself, provided we have the necessary authorization from you.

CE Certified Transformer Ei35 Ei48 Ei57 Ei66 380V 230V 220V Audio Isolation Transformer

Name: CE Certified Transformer Ei35 Ei48 Ei57 Ei66 380V 230V 220V Audio Isolation Transformer
Brand: Shenzhen Okerda Technology Co., Ltd.
SKU: 2007995995

Guangdong, ChinaShenzhen Okerda Technology Co., Ltd.

US$2.00-5.00

1,000 Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio, UPS

Phase

Single

Model NO.

EI57-25VA

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Customized

Certification

ISO9001-2000, ISO9001, CCC

Usage

Single-phase Transformer, Rectifier Transformer, Power Transformer

Frequency Characteristics

Low Frequency

Shape of Core

Brand

Okd

Input Voltage

220V/110V, 50/60Hz

Output Voltage

12V,18V,24V, 30V

Power

12W~30W

Transport Package

Carton on Pallet

Specification

EI57-25VA

Trademark

OEM

Origin

China

HS Code

8504319000

Production Capacity

500000PCS/Month

Key features

CE Certified Safety: Meets CE safety standards for reliable operation in power and audio applications.

Customized Winding: Winding type is fully customizable to meet specific design requirements.

Fire Retardant Materials: Features machine-inserted silicon steel sheets and flame retardant nylon bobbins.

RoHS and UL Compliant: All raw materials strictly comply with RoHS and UL safety regulations.

High Voltage Resistance: Provides superior insulation with Pri-Sec resistance up to 3750VAC.

20+ Years Experience: Backed by over two decades of expertise in transformer manufacturing.

Multiple Certifications: Holds ISO9001, ISO14001, ISO45001, and CCC certifications.

Flexible Customization: Offers full customization including voltage, power, and branding options.

Company profile

Management CertificationStandardized quality controlImporters and ExportersProduction Process Visualization

Shenzhen Okerda Technology Co., Ltd.

Guangdong, 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.Export Year: 2005-12-02Nearest Port: SHENZHEN, Guangzhou, ShanghaiAverage Response Time: ≤3.66h

AI-Powered supplier vetting

SummaryShenzhen Okerda Technology Co., Ltd. is identified as both a trading company and manufacturer/factory in Shenzhen, China, supplying electronic components including transformers, inductors, power supplies, Litz wire, motors, UPS products, adapters, and chargers. It reports more than 10 production lines, exports to a broad range of global markets, and has exported since 2005, with exports representing 71%–90% of total sales. ISO 9001 and ISO 14001 certifications are stated, while the company background also references ISO 45001. The supplier states that OEM orders are welcome and describes custom production of transformers and inductors. However, many operational, service, traceability, audit-result, and customer-reference fields are marked unknown, limiting verification of several capabilities.

Supplier typeThe supplier is described as a trading company in its company profile and as both a trading company and manufacturer/factory in its entity classification. Its Shenzhen address and stated manufacturing activities support a mixed trading-and-manufacturing profile.

CertificationsISO 9001 and ISO 14001 are explicitly listed, and the company background additionally states ISO 45001 certification. An SGS audit is recorded with a validity period from April 8, 2025 to April 7, 2026, but the audit evaluation result is coded as “0,” so the detailed audit outcome cannot be interpreted from the provided data.

Production capacityThe supplier reports more than 10 production lines, off-peak lead times within 15 working days, and peak-season fulfillment within one month. Its classification as both trading company and manufacturer/factory supports production involvement, although actual capacity and output figures are not independently verified here.

Customization capabilityThe company states that it offers custom production of transformers and inductors and welcomes OEM orders. This is direct evidence of customization and OEM willingness for at least these product categories.

Product Q&A

Q:Are you a manufacturer in China?

Yes, we are a specialized manufacturer and exporter based in Shenzhen, with over 20 years of experience in the electronic components industry.

Q:What is your MOQ?

Our standard MOQ is 500-1000 units per design, depending on the specific product and customization level.

Q:Can I place a sample order?

Yes, samples are available. The sample cost depends on the model, and shipping can be arranged via your courier account or charged at cost.

Q:What's the delivery time for samples?

Sample orders typically take 3-6 working days to prepare, depending on stock status and customization needs.

Q:What's the lead time for mass production?

Mass production usually takes 15-30 working days, depending on the order quantity and complexity. We'll provide a detailed schedule upon order confirmation.