Low Frequency Step Down Transformer EI28 1VA 220V 12V Power Transformer Silicon Steel

1.Product Description

The **Low Frequency Step Down Transformer EI28 1VA 220V 12V** is a compact power transformer designed for low-frequency applications, featuring a high-quality silicon steel core that ensures efficient voltage conversion with minimal energy loss. With a primary voltage rating of 220V and a secondary output of 12V at 1VA capacity, this EI28-sized transformer is ideal for small-scale power supply needs in electronics, control circuits, and low-power devices. Its robust construction and reliable performance make it suitable for various industrial and consumer applications requiring stable voltage step-down functionality.

1. Efficient and energy-saving design
Adopting Z11 high magnetic conductivity silicon steel core, it has low hysteresis loss and low eddy current loss characteristics, low no-load current, high energy conversion efficiency, and effectively reduces operating energy consumption.

2. Accurate voltage conversion
Input 220V AC power is stably converted to 12V low-voltage output with high conversion accuracy (within ± 5%). The 1VA power design is particularly suitable for small current control circuits and signal processing applications.

3. Excellent temperature rise control
Optimize the winding structure in conjunction with EI28 laminated design, with a working temperature rise of ≤ 40K (ambient temperature+40 ℃), allowing for continuous operation without exceeding the temperature limit and extending the service life.

4. Strong anti-interference ability
The multi-layer shielding winding structure effectively suppresses electromagnetic interference (EMI) and produces pure output waveforms, making it suitable for precision instruments and automation control systems that require high power quality.

5. Industrial grade reliability
Full copper wire winding+vacuum impregnation process, moisture-proof and shockproof, in compliance with IEC61558 safety standards, MTBF＞100, 000 hours, suitable for a wide temperature range of -25 ℃ to+130 ℃.

2.Performance Characteristics

3.Other Recommended Produtcs

4.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.