Specifications

1,Transformer with 50/60Hz Working Frequency and Low Power Loss 
2,Model Number: EI Series encapsulated

EE20*6 -0.35VA-0.5VA

EI30/5 0.5_0.6VA
EI30/8 0.8_1.2VA 
EI30/23 2.6_3.2VA 
EI-30x5mm (0.6VA)
EI-30x10.5mm (0.6 - 1.5VA)
EI-30x12.5mm (0.8 - 1.9VA)
EI-30x15.5mm (1.8 - 2.3VA)
EI-30x18mm (2.1 - 3.0VA)
EI35 
EI-38x13.6mm (3.2VA)
EI-42x14.8mm (4.5 - 8.0VA)
EI-48x16.8mm (10.0VA)
EI-54x18.8mm (16.0VA)
EI-60x21mm (23.0VA)
EI-66x23mm (34.8VA)
UI30/10.5 
UI39

A. Feature:

1. Custom designs available

2. High efficiency of over 95%

3. High frequency range 10kHz-1MHz

4. High isolation strength

5. Lower profile and weight

6. high power density

7. High-temperature resistant

8. Operating temperature -40°C to +125°C

9. Power range 10w-10kw

B. Wire Materials:

1. Copper, Aluminum, Aluminum Clad Copper.

2. The size of transformer total in Aluminum is larger than which total in Copper.

3. Aluminum instead of Copper Cost Save: 13%-35%/PC

C. Certification:

ISO9001, CESI, UL, CE, RoHS and SGS.

D. Testing Items:

1. No-load Test(No-load Current, No-load Voltage, No-load Loss)

2. Load Test (Load Voltage, Temperature-rise)

3. Inductive Voltage Test

4. DC Resistance Test  5. Safety Test

E. Application:

1. Electronic Meter & Apparatus

2. Cable TV & Digital Network

3. Electronic Control

4. Medical Equipment

5. New Electric Power Supply

6. Decorative Illumination System

7. Security Monitor & Control System

8. Comparison on Transformer with Toroidal, EI, R, CD Shape Core

- specially used in switching power supply and all kinds of high-frequency circuit

- small volume and light weight

- Size: EE8~42, EER9-49, EI12~40

F. Features:

1. Custom designs available

2. High efficiency of over 95%

3. High frequency range 10kHz-1MHz

4. High isolation strength

5. Lower profile and weight

6. high power density

7. High-temperature resistant

8. Operating temperature -40°C to +125°C

9. Power range 10w-10kw

G. Applications:

1. VCRS, Copy machine , Audio equipment , Game machines
2. TV sets, Microcomputer equipment, printers, Terminals
3. communications control equipment
4.Switching power supply, chargers, alarm system

5. UPS, VCD/DVD players, audio and visual equipment

6. OA machines, inverters, chargers, alarm system

Electrical Characteristics

• Rated Input Voltage: 120VAC 60Hz or 220~240VAC 50Hz

• Output Power: 0.15VA ~ 300VA

• Operating Temperature Range: 0°C~40°C

• Insulating Resistance: 100MΩ minimum @ DC 500V

• Insulation: Class B (130°C) or according to specification

• Protection: thermal cut off or current fuse

• Storage Temperature: -20°C~60°C

• Humidity: 5%~95% non-condensing

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Packaging & Delivery




Packaging Detail: standard export neutral packing or as customer's requirement

Delivery Detail: 15 days after receiving deposit











Factory of our company:




We will feel appreciated if you can provide the parameters of the product or the photo of the item.

We can supply kinds of transformers, The products are widely used in a large variety of industries, computer, switch power, home appliances,LED,Plasma color television, instrumentation, green lighting, instrument and apparatus, the automobile electronics, and military industry. The product can be made of various specs,wecan supply the ferrite core to match the trasformers.

All products of the size,electrical performance can be designed according to customer requirements in R&D.

If you have a project or looking for electronic parts and components please contact with us!

Don't hesitate to contact us if any interested in our products.

Hang Tung Co. LTD Tel: 86-769-86638188




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