Inductor is a circuit element that generates electromotive force due to the change of the current passing through, thereby resisting the change of current. This property is called inductance.
There are many types of inductance components, which are called differently depending on their appearance and function. The enameled wire is wound in multiple turns, and the inductors often used as electromagnets and transformers are also called coils according to their appearance. It is used to provide large reactance to high frequency through direct current or low frequency. Depending on the function, it is often called choke or choke. Often used with ferromagnetic materials to install larger inductors used in transformers, motors and generators, also called windings. The wire passes through the magnetic substance without a coil shape. It often acts as a small inductance for high-frequency filtering, and is often called a bead according to its appearance.

High-frequency transformers are power transformers whose working frequency exceeds the intermediate frequency (10kHz). They are mainly used as high-frequency switching power supply transformers in high-frequency switching power supplies. They are also used as high-frequency inverters in high-frequency inverter power supplies and high-frequency inverter welding machines. Change the power transformer. According to the working frequency, it can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100kHz~500kHz, 500kHz~1MHz, and above 10MHz.
The power capacity of each core type varies due to differences in topology, operating frequency and temperature, flux density, and material grade.
* Siemens material grade 

WE CAN CUSTOM FILTER INDUCTOR TYPE :
   Common mode chokes(Line filters):
                                       Type            Detailed Size
                                        UU              UU9.8, UU10.5, UU16
                                        ET               ET20, ET24, ET28, ET35  
                                       SQ              SQ1212, SQ1515, SQ2418
                                       FT      FT20-22, FT20-21, FT20-15, FT20-13, FT20-10
                                    Toroidal    6X3X2, 6X3X3, 8X5X3, 9X5X3, 9X5X4, 10X6X3, 10X6X3.5, 10X6X5, 13X8X6, 14X9X5,                                                                           20X12X6,       22X14X8, 25X15X10, 5X15X12, 25X15X13, 28X14X10, 31X19X11, 31X19X13, 32X14X11,36X23X15, 38X18X13,                                              49X32X16 (Ferrite core); 16X10X6, 20X12.5X8, 25X16X10, 30X20X10, 30X20X15, 40X25X15,            50X40X20, 63X50X25, 80X63X25, 100X80X25, 130X100X25(Nanocrystalline core)

Inductors(Choke coils):
                                     Peaking/Drum    4*6, 5*7, 6*8, 8*10, 9*12, 10*12, 10*16, 14*15, 16*18, 18*20
                                     Toroidal                     6X3X2, 6X3X3, 8X5X3, 9X5X3, 9X5X4, 10X5X4,10X6X3, 10X6X3.5, 10X6X5,                                                                        13X8X6, 14X9X5, 20X12X6, 22X14X8, 25X15X10, 25X15X12, 28X14X10, 31X19X11,                                                                    31X19X13, 32X14X11,36X23X15, 38X18X13, 49X32X16


                                  Rod 3X12, 3X15, 4X15, 4X20, 5X15, 5X20, 5X25, 5X30, 6X15, 6X20, 6X25, 6X30, 6X32, 6X35, 8X20, 8X30
                       SMD power inductors ( Unshielded)  MT, MTQ, MTF, MTG
                                                           (Shielded) MTH, MTHII, MTP, MTB, MTE, MTL, MTF




high frequency transformer :
  

EE type Transformer Parameters

 

Input Voltage: AC 100---240V;50/60Hz to be customized
Output Power: 5VA -1000VA to be customized
Products Advantages:
1. Low loss
2. High Reliability
3. High Efficiency
4. Stable output 
5. It can be customized according to the requirements of customers and provide total design solutions to customer 

Application:
1. Photovoltaic
2. Household Appliance
3. Energy
4. Communications
5. High-power supply
6. Automotive electrics

Features:

• Applied in a wide range
• High operation frequency
• Wide range of working voltage
• Large power
• Low temperature rising
• Compact, light and easy surface mounting
• Customized designs and specifications are accepted
• Various types of transformers are available
• Switching power transformer

High Frequency Transformer with Low Leakage Inductance and High-efficiency

• High power and compact design
• Utilizing high flux density ferrite cores with low loss and low temperature rise
• Applicable frequency range: 20 to 80kHz
• Operating frequency: higher than 200kHz
• High magnetic flux and low-loss magnetic materials
• With low leakage inductance and high-efficiency
• Highest reliability of high-voltage
• Designed according to customer's requirements to meet EI, ER, EE, and EEL model series
• Advanced production technique and reliable full-automatic testing facilities
• Customized specifications are welcome
• Applications: PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments, and instruments and so on.

product procedure 
The following picture showed you about all finished toroidal transformer production line and package with export standard carton and strong pallets:

Equipment Exhibition

Our main equipments contained:  256 sets of automatic winding machines; 2 sets of automatic infrared drying tunnel furnace; the lab for car magnetic products; 1set of salt spray test machine,1 set of high-temperature storage test machine, 1 set of high humidity test machine and a set of old and heat shock test machine; 6 sets of automatic vacuum dipping machines; 3, fully automatic soldering machines, 600 set accessory Machines.

About our factory
Shenzhen Yiyi Technology CO., LTD is a professional transformer & inductor manufacturer, Our factory has abundant strength which integrates design, production, selling of transformer, inductor etc. Quality is the soul of the product and the life of a company, In order to provide high quality and energy-saving green products, we strictly carry out the international Quality Management System: ISO 9001, ISO 14001, What's more, we had acquired IATF16949, CQC, UL certification.

We Had 2 production bases in China, one named Yongzhou Meikai Electronics Co., Ltd located in Fujian Longyan. The other is Dongguan Zhici Electronics co.,ltd, located in Xiamen. The factory is about 24800 square meters, The total production capacity up to 8 million pieces per month: High-Frequency Transformer: 3 million pieces, Low Frequency Transformer 1 million pieces.

The company  of Shenzhen is focused on research&development, What is the most important, we established an independent laboratory for car magnetic: salt spray test, high humidity test, high-temperature test, cold and hit shock test, Etc which can meet all the test requirements.

The base of Fujian can offer our customers first-rate mass production with a lower cost at high rate products.

Our products are widely used in many fields, such as household appliances, new energy, industrial supplies, and electric tools. It can be customized by customers and we can provide total design solutions to our customers if needed. We enjoyed a high reputation and keep reliable cooperation with global valued customers such as Panasonic, Funai, Cosel, Honeywell, Jabil,
 FPHC, Future, GE, TCL, FPA, ABB, CKP,EATON.

We insist on pursuing superior quality and scientific management, not only the independent laboratory for car magnetic. But also We try our best to insist on technological innovation, improvement and introducing automatic equipment. we can keep supplying high quality, lower cost, competitive products for our customers continuously. 

Our products can be customized according to the requirements of customers, what's more, we can provide total design solutions to our customer if needed 

5. Company Advantages

1. We are a professional Magnetic component manufacturer with over 16 years of experience in designing and producing and Exporting.
 
2. Big production capacity: The factory acreage is about 24800 square meters,  total production capacity reached 8 million pieces of transformer series per month.

3. Strictly QC inspecting rules: all products must be 100% inspected before delivery.

4. OEM/ODM services are available.

5. We have an independent order system, with the overall tracking function from raw materials purchasing to finished goods outgoing.

6. We have got ISO9001:2015 quality management system; ISO14001:2015 environment management system; health and safety management systems-Requirement, IATF16949, UL certification. 

7. Independent laboratory for car magnetic. It meets all the car component test.

8. We have 2 factories which can meet a variety of demands.
 

FAQ
Question 1: What is your payment term?

         Answer: T/T 30% in advance and balance 70% before shipment or L/C at sight.

 

Question 2: What is your delivery term?

         Answer: EXW, FOB, CFR, CIF

 

Question 3: What about Lead time?

        Answer: normally, it takes about 7 to 30 days after receiving your advance payment.

 

Question 4: Can you produce according to our samples?

       Answer: Yes, we can produce according to your samples or technical drawing, we will make the molds and fixtures.

 

Question 5: What is your sample's policy?

       Answer: We provide the sample according to your requirements, and you get to pay the sample's fee and courier freight, we will return the sample fee to you once you confirm the normal order.

 

Question 6: Do you test all your goods before delivery?

      Answer: Yes, we have 100% test before delivery.

 

Question 7: How do you make our business longterm and good relationship?

     Answer: Firstly, we provide good quality products with competitive price, to ensure our customer's benefit;

                     Secondly, we respect our customers as our friends, grow up together.

Kindly Reminder:
1. About the SAMPLES. Please provide specific specifications or sample material, we will evaluate your products, design and produce samples.
2. About PRICE. Transformers are custom products, due to the different materials and design, even if the same model, the price is not the same. The price also depends on the complexity of the  parameters and the amount of orders.
3. About SHIPPING. Samples in 3-5 days; mass production in 7-15 days.
4. Packaging, logistics, according to the specific requirements of the purchase and sale contracts.
             
Warm tips: the freight shown on the website is for reference only, and the                      specific freight will be calculated according to the actual delivery amount..
1: Proofing fee and time

1, Conventional sample

1. Proofing time: the sample preparation time is generally 1-2 working days

2. Sample preparation fee: samples are free of charge within 10 yuan at the market discount price, and the sample fee is required for more than 10 yuan.

3. Proofing freight: borne by the customer.

Production delivery period

1. Date calculation starting point: Based on the confirmation date of receiving customer order, start to calculate the production time and delivery period:

2. Production delivery period: under 50 sets, 3-5 working days, more than 50 sets, can be specifically agreed with customers;

[3: payment method and tax ticket description]

1. Payment method: the contract shall prevail. 2. About invoice: in order to facilitate customers and reduce the cost of customers, our factory offers and cooperates in many ways: a excluding tax price, B value-added tax invoice price; 4: Packing description and packing data]

Our factory will pack according to the requirements of customers:

1. General packaging: the outer packaging is a carton, the inner packaging is a protective film or PE plastic bag. The specific packaging quantity must be determined according to the product size;

2. Special packaging: mainly for high-power outer packaging, wooden box / board is used, and the inner packaging is PE protective film

3. Packing data: for customers who need to export, the packing adopts wooden box, and the inner packing is PE protective film; The size of wooden box can be customized according to the specific situation.

[5: after sales commitment] after sales contact number: 0755-23190596

1. Report in the whole process: proofing, sending samples, production, delivery, receiving, etc

2. Spare parts production: generally, 3 ‰ of the order quantity, and otherwise agreed in special cases.

3. Problem solving: in case of any problem, you can take photos to us first. We promise to solve the problem for you first, and then define the responsibility of the problem to solve your urgent problems.
Welcome to contact us for more details:

  

Shenzhen Yiyi Technology Co.,Ltd  

Add: 501, No.11, Lane 1, Nanzhuang New Village, Xinzhuang Community,