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Low Voltage Transformers

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In the United States, power outlets are capable of distributing up to 120 volts to the devices to which they are attached. In order for that power to be used by an electronic device, it must be transformed to the appropriate voltage. Read More…

Low Voltage Transformers Low voltage transformers are power transformers that are used to change the voltage capacity of a low-voltage electrical transmission line. Typically, electronic low voltage transformers convert 120 volts into 12 volts or 24 volts.
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Leading Manufacturers

Antigo, WI  |  800-826-9741

We believe in offering the very best to all customers. We offer a full range of transformers, including electric transformers, current, and toroidal transformers.

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Johnson Electric Coil Company $$$

Phoenix, AZ  |  602-281-2046

Since 1975, we have been leading the way in manufacturing high-voltage, low-power sources. And over the years, we've grown to extend our capabilities by producing specialty transformers, audio coils, inductors, magnetics, printed circuit boards and other electrical components. High quality, competitive price.

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Spark Industries $$$

McHenry, IL  |  815-344-2900

Lenco Electronics, Inc. specializes in a wide variety of custom electric transformers. Lenco’s success has not come about by accident, but by providing its customers with high-quality products.

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Lenco Electronics, Inc. $$$

McLeansboro, IL  |  618-643-2555

ISO 9001:2000 registered Sun Transformer creates custom transformers optimized for the needs of many industries. Large power, isolation & auto transformers, printed circuit mount power transformers, units for hostile conditions, units with ferrite or nickel cores for digital telecommunications use, etc.

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Sun Transformer $$$

Addison, IL  |  630-628-9999

Wabash Transformer Inc. was founded in 1966, and is presently located in Addison, Illinois. This facility offers a full range of Custom and Standard power transformers. Wabash Transformer applications include HVAC, Medical, Pool and Spa, Metering equipment, Household appliances and many others.

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Wabash Transformer $$$
placeholder image Johnson Electric Coil Company Spark Industries Lenco Electronics, Inc. Sun Transformer Wabash Transformer

A DC low voltage transformer uses a rectifier to convert its output to direct current (DC) and to lessen radio frequency interference (RFI). Low voltage transformers offer a variety of mounting configurations and are often small in size.

Transformers are a static piece of apparatus that transfers electrical energy from one circuit to another circuit by electro-magnetic induction, often with altered values of voltage and current. Electricity in a low voltage transformer is converted by passing a current from one set of electric windings to another by means of a magnetized core.

P/C Small Transformers Low Voltage Transformers - Lenco Electronics, Inc.

Low voltage transformers are commonly used for low voltage lighting, which typically only uses 12 or 24 volts. There are also many low voltage transformers to meet the needs of defense, manufacturing, medical care and research industries.

Unlike high voltage transformers, which in the most extreme cases can weigh several hundred pounds, low voltage transformers can be small enough to hold between two fingers. There are two main ways that low voltage transformers are included in electronic device design. In the case of more expensive consumer electronics like video cameras and media players, low voltage transformers are usually built into external power cables and chargers. This reduces the likelihood that a voltage mismatch will affect the device in any way.

For example, if the owner of a video camera traveled to a country with a different standard outlet voltage and forgot to bring a step down transformer, the camera's charger would likely be destroyed by excessive voltage, but it would prevent the excess of voltage from reaching the device itself, protecting it from damage. In other cases, voltage transformers can be designed as an integral part in a device. Devices with permanent power cords usually feature such integral transformers.

Low Voltage Transformer Informational Videos