EFD high frequency transformer for PCB in China

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Basic Info.
  • Brand Name: HANG TUNG 
  • Bobbin: EFD25 transformer 
  • Core: PC44 or as require 
  • Phase: single 
  • Usage: Electronic 
  • Certification: ROHS,ISO9001:2008 
  • Operating temperature: -40°C to +135°C 
  • Model No: rm transformer 
  • Price: contact us 
  • Delivery time: 7-15 days 
  • Certificate: UL/SGS/ROHS 
  • Model No.: EFD25 Transformer 
  • Place of Origin: Guangdong  
  • Min.Order: 1000 Piece/Pieces
  • Means of Transport: Ocean, Air, Land
Supply Capacity
  • Production Capacity: 8000/day
  • Packing:CASE
  • Delivery Date: 7-20 days

1. Current transformer

2. Planar Transformer

3. Encapsulated transformer

4. Toroidal transformer

5. High frequency transformer

6. Low frequency transformer

 Model                                        Application
EE EI series  switching power supply,LCD screen power supply and high power UPS inverter power supply,computer power supply and electronic devices,etc
PQ POT PM PT series

switching power supply,computer,SPC exchange,module power supply,vehicle inverter,HG electrodeless discharge lamp power supply and sophisticated electronic devices,etc

ETD series

switching power supply,computer power supply,UPS and electronic devices.etc.

ER series 


 switching power supply,LCD screen power supply and high power UPS inverter power supply,computer power supply,vehicle inverter,HF electrodeless discharge lamp,HPSL,oxygen-arc welding machine and electronic devices,etc.
RM  series 
 Mainly applied to iolated and matching transformers ; Used in SPC exchange terminal, module power supply and vehicle inverter,etc.
EP EFD EPC series 
 Mainly applied to isolated and matching transformers; Used in SPC exchanging terminal and sophisticated electronic devices,etc
EF  series 
 switching power supply; and are widely used in electronic devices such as electronic rectifiler
T shape filterTV image,office automation matching,electrical power supply and other electronic devices,etc.
 Liner transformer household appliances and instruments including stereo, air conditioner, UPS and video monitoring power supply .etc.


1.Samples free

2.Specialized manufacturer

3.OEM/ODM accepted


5.Delivery on time


Why Choose us?


² High quality and best services.

² We have RoHS and REACH certification.

² Our Products has the UL Insulation System.

² Our company has pass the ISO9001:2008 and ISO 14001:2004 


Quick Details

Place of Origin:

Guangdong, China (Mainland)

Brand Name:


Model Number:

pq transformer





Coil Structure:


Coil Number:





ISO9001:2008, UL, CQC,RoHS,CE,CB



Business Type:


Wire material:

pure copper



Output voltage:


Packaging & Delivery

Packaging Details:Carton
Delivery Detail:15-30days



1.ISO9001:2008 ;



4.Environmental protection materials;

5.Pure copper as raw materials; 

6.Advanced performance,lower price,higher quality;

7.Stable perfomance;

8.Short circuit protection,fuse protection;


Transformer application area

1.Ceiling speakers,

2.Public broadcast system,


4.Water dispenser,

5.Household blender, 

6.Air -conditioner,

7.Mainframe computer 

8.And other appliances products.


Our service

1.Your inquiry related to our products or prices will be replied in 24hours.

2.Well-trained and experienced staffs to answer all your enquires in fluent English.

3.OEM&ODM,any your customized transformer we can help you to design and put into product. 






applied in the switching power supply,main power transformer

EF Transformer

applied in the switching power supply,main power transformer

 EFD Transformer

Auxiliary powr transformer,main power transformer,choke coils

 EPC Transformer

 Auxiliary powr transformer,main power transformer

 PQ Transformer

applied in the linear filter,choke,pulse transformer,drive transformer

UU Transformer

varieties of switching power supply transformer,coke coils et

 EC/EER/ER Transformer

applied in the linear filter ,current tranformer,smoothing choke coil,drive transformer, switching power transformers and chokes

RM Transformer

filters, inductors and transformers for telecommunication other electronic equipment

POT Transformer

filters for telecommunication equipment,and various kinds of inductors and transformers

DR Core

Choke coils, Peaking coils, Linearity coils, Alarm coils, Power choke coils, Fixed choke coils, Filtering coils,etc;

EI Transformer

Various kinds of transformers and chokes.


Pulse and wide-band transformers, various types of filters, inductors and chokes.


Our Services


1.Main Product

A broad range of soft ferrite core, bobbins coil ,transformers & inductors


Welcome to visit our product line ,we have 2 head company,1subsidiary company

3.Sample Charge



Replied within 24 hours


1.Air gap of ferrite core processing or your technique request

2.Our R&D department offer the advice basing on your transformer designing;

3.We can build up the new mould basing on your design;


SGS, RoHS, ISO9001,basing on your request,for example CE,UL

 VDE etc


1. 5 layer hard paper carton,

2. have inner box,

3.Outer box packed by thin film


1.by sea ,by express, by air


Specialized after-sales team offter technology support


















*Highly reliable,compact & lightweight

* Compact and provides a large inductance 

* Prevention of noise emitted from other components.

* Complaint with CE & UL & RoHS 

* Custom designs are welcomed for different requirement


Electrical Characteristics


Output Power: 0.5W-18W

Working Frequency: 20KHz-500KHz

Work Tempreture: -40 °C ~ +125 °C 

Storage Tempreture:  -25 °C ~ +85 °C 

Storage Humminity: 30%~95%

Insulation System: ClassB(130°C ) / ClassF(155 °C )



Customized Design 


With our own UL registered Insulation system, HangTung has over 30 years experience in the 

design and manufacture of transformers. 

Now, HangTung tranformers are widely served in Medical, Aerospace&Military,instrumentation, 

Automactive, telecommunications and power supplies.



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





Help you quickly complete the new product's whole process within 3 

days from design production to delivery. 

Basis of title

The entire process is completed internal, in order to ensure that you can get 

faster delivery service than from any other supplier.

We introduce the most advanced technology continually to meet the most stringent 

quality standards, every product is tested,and returning  rate <0.01%, so that we can 

meet the needs of buyers from more than 70 countries.

Other advantages 

1,Complete Certification and standards: UL; ISO 9001; ISO 14001; SGS; REACH; RoHS

2,Factory Area: 7000 square meters

3,Production capacity: 30,000,000 pieces of transformers, inductors, coils

4,Service: provide customers with the most satisfactory service to solve the product difficult 

5,"3 fast": Replying fast; Offering fast; Delivering fast 

company profile

Dongguan HangTung Electronics Technology Co., Ltd. was founded in 1987 and is a 

high-tech company which integrates production, design, R&D, and sale.

We-HangTung-specialize in developing many kinds of electronic components. Include 

electronic transformers, 

SMD power, inductors coils, fixed inductors, toroidal coils, common mode chokes, 

and adapters 

We are ISO 9001 and ISO 14001 certified and our products come with UL, RoHS and 

SGS marks. For more details, please contact us without hesitation.



Company Information‍


Guangdong HangTung electronic co., LTD., founded in 1987, majored in research and development, production and sales of high frequency transformers, low frequency transformers, inductors, filters, switching power supply, LED driver power supply, etc.

HangTung is the designated supplier of TDK LAMBDA - transformer as well as providing OEM processing for TDK LAMBDA - CS, SWS series switching power supply.

HangTung has been committed to the standardization management. According to ROHS requirements,producing green products and main products have passed ISO9001,ISO14001, UL,CE,TUV certification.

Each link of product development, design, manufacturing, and quality control are carried out in strict accordance with the standard.

HangTung can also design as your parameters and expect a long time mutually beneficial cooperation with our customers

Send message to this supplier
Mr. Ken Lo (Manager)
Tel: 86-769-86638188
Mobile: 18103060006
Enter between 20 to 3,000 chatacters.
Contact Method
Hangtung Electronic Technology Co., LTD.
Shijie Town, Dongguan, Guangdong, China (Mainland)
Fax: 86-769-86631396
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