Transformer identification

[glistok]

I have transform marked ST4810CF-25SENP. There are no other markings. It could be a 110v to 9v or 12v for a small cd player. I need enough info to replace it. Thanks!

[rick_1976]

Greetings,

The part number mentioned doesn’t seem to be fetching results from the usual sources, so we’ll not likely be able to provide you with any information about it. There are likely markings or information in the manual for the equipment that is being powered which could aid selection of a replacement, and some factors such as output connector size which can be directly measured.

The following posts may be helpful:

Finding a Replacement Power Supply

One very common question we receive here at Digi-Key is customers looking for replacement power supplies. The majority of these are AC to DC adapters and can be found in our AC DC Desktop, Wall Adapters Section. The first thing we always ask the customers is if they have a part/model number for their adapter or if they have the voltage and current requirements. On most adapters this information can be found on a label. On the label below we can find the following information. Model Number: In…

Measuring Power Supply Barrel Plug ID 2.1mm vs 2.5mm

One common question that is asked of Techs at Digi-Key is to trying to verify the correct replacement wall mount AC to DC power supply. The difficult specification to find on many of these power supplies is what size if the inner diameter of the plug / connector. This is made more difficult by the fact that the two most common sizes of plugs at 2.1 mm ID x 5.5 mm OD and 2.5 mm ID x 5.5 mm OD. Since this measurement is too close to use a ruler and fitting a caliper (if available) inside a 2.1 or…

[glistok]

Thanks for the reply. I will experiment until I find a correct solution to my problem.

George Istok