Product Details
EI57 Low Frequency Transformer Power Transformer Efficient Power Conversion
1.Product Description
EI57 Power Transformer plays an important role in the field of power conversion. The iron core adopts an EI type structure, and "57" usually refers to the key dimensional parameters of the iron core. This specific specification endows the transformer with unique performance. This transformer is mainly used in various electronic devices and electrical systems that require power conversion. It utilizes the principle of electromagnetic induction to accurately convert the input AC power into suitable output voltage and current based on different device requirements through carefully designed primary winding turns ratio. The iron core is made of high-quality silicon steel sheets with high magnetic permeability, which greatly reduces hysteresis loss and eddy current loss. Combined with high-purity copper winding, it effectively improves the efficiency of electrical energy conversion and reduces energy loss. With its compact structural design, stable and reliable performance, and excellent heat dissipation capability, EI57 Power Transformer is widely used in many fields such as industrial control equipment, communication power supplies, audio power amplifiers, etc., providing solid power support to ensure the stable operation and efficient work of various devices.
2.Product Features
- High efficiency :EI57 transformer adopts high quality materials and advanced technology, with high energy conversion efficiency, which can minimize energy loss
- Low noise: The design of EI57 transformer makes it produce low noise when working, and will not cause thousands of disturbances to the surrounding environment and personnel.
- Energy saving and environmental protection :EI57 transformer can provide stable voltage output when working, avoiding the damage of electrical equipment due to too high or too low voltage, thereby extending the service life of equipment and reducing waste emissions.
3. Product Application
EI57 transformers are widely used in various electrical and electronic equipment, including but not limited to the following aspects:
- Household appliances: such as TV, stereo, refrigerator, etc., to provide stable power for these devices;
- Lighting equipment: such as LED lights, street lights, etc., used to adjust voltage and current to provide stable brightness lighting effect;
- Communication equipment: such as wireless routers, switches, etc., to provide stable power support for these devices;
- Industrial equipment: such as motors, frequency converters, etc., to provide stable power supply and voltage adjustment functions for these equipment.
Item | Value |
Place of Origin | Guangdong,China |
Model Number | EI57 |
Usage | Power |
Phase | Single |
Coil Structure | TOROIDAL |
Coil Number | AUTOTRANSFORMER |
Input Voltage | 220V, 110V, 240V, Other |
onput Voltageto | 6v,12v,18v,24v,other |
Transformer type | EI transformer |
Frequency | 50Hz or 60Hz |
Product type | EI |
Feature | High Security |
Core type | power | Length | width | height | Stack up | pitch-row | Total length | weight |
A(mm) | B(mm) | C(mm) | D(mm) | E(mm) | F(mm) | KG |
Ei28*13 | 1W | 30 | 30 | 27 | 13 | 42 | 52 | 0.07 |
Ei3515 | 2W | 37 | 34 | 32 | 17 | 47 | 58 | 0.13 |
Ei41*17 | 3W | 53 | 37 | 36 | 18 | 53 | 64 | 0.18 |
Ei41*20 | 5W | 43 | 42 | 36 | 22 | 56 | 67 | 0.23 |
Ei48*18 | 8W | 50 | 40 | 42 | 21 | 61 | 73 | 0.3 |
Ei48*24 | 10 W | 50 | 45 | 43 | 26 | 61 | 74 | 0.36 |
Ei48*26 | 12 W | 50 | 45 | 44 | 29 | 61 | 72 | 0.4 |
Ei57*25 | 15W | 60 | 50 | 51 | 28 | 72 | 85 | 0.53 |
Ei57*30 | 20 W | 60 | 54 | 51 | 32 | 73 | 87 | 63 |
Ei57*35 | 25 W | 60 | 59 | 51 | 38 | 76 | 90 | 0.82 |
Ei66*32 | 30 W | 69 | 58 | 58 | 35 | 85 | 96 | 0.96 |
Ei66*32 | 40 W | 69 | 58 | 58 | 35 | 85 | 96 | 0.98 |
Ei66*36 | 50 W | 69 | 61 | 59 | 38 | 82 | 100 | 1.04 |








Company Profile
Shenzhen Zhixiangyuan Electronics Co.,Ltd is a high tech
enterprise, specializing in customizing various types of audio
transformers, high frequency transformers, low frequency
transformers,switching power transformers, toroidal inductors,
choke coils, SMD power inductors, supper high current inductors and
wireless charging coils ,etc for customers.
Founded in 2011,our factory have two production bases in Huizhou
city,Guangdong province and Guang’an city,Sichuan province which
can produce 120 million inductors and transformers that meet the
environmental Protection requirements of ISO every year. Our
company equips with fully automatic
winding,soldering,assembling,testing machines,also some reliability
test equipments.
Our products are certified by UL,FCC,CE,RoHS、Reach and granted with
20 patents.These achievements mainly come from our strong R and D
team,providing solutions for temperature decreasing noise
cancellation and coupled radiation conductivity.
The products are widely used in high quality audio equipments,
audio conference room equipments,communication, medical electronic
equipments, automotive electronics, sports and fitness equipments,
beauty equipments,LED lighting,and consumer electronics etc.
We are committed to providing high quality coils, inductors,
transformers and other products. We can also accept OEM and ODM
orders. We sincerely welcome customers at domestic and oversea to
visit and cooperate with us with high-quality products,
preferential prices and excellent reputation.