SMPS Transformer

About Service

DONGJIN ELECTRONICS (I) Pvt. Ltd.

DONGJIN ELECTRONICS started his production in 2009, is an ISO 9001:2008 & 14001:2004 certified company.

DONGJIN is now further advancing its infrastructure by entering into Mobile charger manufacturing to expand its roots further in the market in terms of product range and plans to offer end to end solutions to all its clients.

Events of the year

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Events of the year

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Events of the year

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Events of the year

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DONGJIN ELECTRONICS designs and manufactures a wide range of transformers.

Our custom design and manufacturing capabilities enable us to offer non-standard transformer products. We design and build specialized magnetic components to meet your exact requirements, from legacy to state-of-the-art construction types.

Supplying quality transformers

Transformers types we manufacture

A transformer is a device used for increasing or reducing the voltage of an alternating current. At Dongjin Electronics, we manufacture specialty transformers for a variety of industries, including OEM, instrumentation, imaging, medical, military, and aerospace.

Our specialty transformers include high voltage universal windings, line voltage transformers, high frequency transformers, and step up and step down transformers up to 100 KVA. Some of the different varieties of custom transformers we manufacture include:

High Frequency Transformers

High frequency transformers are useful when noise reduction, increased
efficiency, and limited space are important to your application. High frequency transformers can deliver extraordinary power in a small unit.

They are manufactured with advanced core materials, including ferrite and powdered iron and are available in a range of mounting types such as SMD, thru-Hole and flying leads.

Torodial Transformers

Toroidal transformers are known for their high efficiency, excellent load regulation,
and very low emitted EMI. Our toroidal transformers can handle wattage ratings from less than 10 VA to greater than 2000 VA.

Industries
Applications	audio, lighting, power, and medical applications
Range	14W-44W
Core Material	Ferrite Core (EE, ETD, …) and Iron Core

Buck Boost Transformers

Buck boost transformers are designed to be able to adjust voltage within a
limited range. They are most often used to precisely match the voltage of a power supply. For example, a buck boost transformer can be used to adjust the voltage from a power supply to the exact voltage required by a product. Buck boost transformers are also known as step up and step down transformers.

We manufacture buck boost transformers in single or three phase applications with standard or multi-tap configurations.

Industries
Applications	low power lighting, uninterruptible power supplies for computers, industrial lighting that runs at higher voltages
Range	14W-44W
Core Material	Ferrite Core (EE, ETD, …) and Iron Core

Three Phase Transformers

These transformers are primarily used to step up or step down voltages in three
phase power industrial machine applications. While single phase transformers could be bundled and used for these systems, using a three phase transformer is generally more advantageous. They use less material, weigh less, and are usually smaller than a single phase bundle would be.

Industries
Applications	audio, lighting, power, and medical applications
Range	14W-44W
Core Material	Ferrite Core (EE, ETD, …) and Iron Core

Isolation Transformers

Isolation transformers are used to prevent signal interference and to direct power
between independent circuits that cannot be directly connected. Many applications require the circuit in contact with user be “isolated” from the main power circuit.

At Shreejee Electronics, our UL E160724 listing for insulation allows us to apply the UL mark for temperature ratings for 130 to 220 deg celsius.

Industries	medical device and consumer product applications
Applications
Range	14W-44W
Core Material	Ferrite Core (EE, ETD, …) and Iron Core

Instrument Transformers

These transformers are used to provide analog information to help monitor,
control, operate, and protect the power system to which they are connected. We can manufacture instrument transformers in a range of sizes, from compact to broad mount capabilities.

Our designers and engineers will work with you to develop a transformer with the correct voltage, VA rating, and physical size requirements you need.

Industries
Applications
Range	14W-44W
Core Material	Ferrite Core (EE, ETD, …) and Iron Core

Pulse Transformers

Pulse transformers are generally used to transmit information through analog and digital
signals. They are designed to produce a specific rectangular waveform.

Our designers and engineers will work with you to develop a transformer with the correct voltage, VA rating, and physical size requirements you need.

Industries
Applications	electronics, communications, power distribution controls, and radar applications
Range	14W-44W
Core Material	Ferrite Core (EE, ETD, …) and Iron Core

High Voltage Transformers

These transformers allow for the safe and accurate step up of voltages up to
15,000 V.

Our electrical, manufacturing, and quality engineers will work with you to provide the precise
High Voltage Transformer you need for your application

Industries
Applications	electrostatic cleaners, laser equipment, ozone generation equipment, particle accelerators, high voltage power supplies, and x-ray machinery
Range	14W-44W
Core Material	Ferrite Core (EE, ETD, …) and Iron Core