Transformer is an important electronic component. Nowadays, small transformers are widely used on PCB, which brings great convenience to people’s production. However, it is difficult for people with no previous transformer experience to purchase the right transformer smoothly and practically. Now, let’s talk about how to choose small transformer for PCB.
How to Choose Small Transformer for PCB
1.Learn what types of small transformers are commonly used on PCBs, such as the following:
- Power PCB mounting transformers
- Frequency-selective transformer
- Coupling PCB mounting transformers
- Isolation PCB mounting transformers
- Audio transformer
- Pulse PCB transformer
2.Maximum size of transformer
On the PCB, there is limited space for the transformer, so it is very important to know its maximum size. It may not be possible to reach the desired output power if the size is too large
3.Ambient Temperature(ta)
Generally, there are two ambient temperatures for small transformers used on PCB: 40℃(ta) or 70℃(ta). Choose 40℃(ta) or 70℃(ta) depends on the requirements of the actual working environment of the transformer. Furthermore, depending on the use environment, you can choose a sealed transformer or an open frame transformer.
4.Power, Input voltage, output voltage, output current and working Frequency
You must be know you finding transformer power, Input voltage, output voltage, output current and working Frequency
5.Required standards approvals
Generally small transformers for PCB required UL,VDE,DEKRA EN61558,CE,RoSH,REACH, ISO9001 etc these safety agency approval and certificate. It depends on the needs of your project, the field of application and your country requirements.
The misunderstandings in choosing small transformer for PCB
1.So long as the transformer are made by a well-known brand, their transformer don’t have quality problem. A famous brand manufacturer has some advantages in the industry competition due to brand, technology, capital, and other factors. But the quality of the transformer depends on the company’s quality control
2. As long as the price is low, you can choose
Good quality and low prices are good, but there is also the view that “cheap is not good.” A good quality must be sufficient to buy good materials, and the price of good materials must be higher than that of ordinary materials. Therefore, suggest you choose a transformer not only consider the price but also select more than one manufacturer for comparison, and make the final decision after a multi-faceted analysis. Anothermore: It’s better to visit the manufacturer to inspect their transformers, production process, factory inspection and other procedures.
3. Blinded by manufacturers’ verbal promises
In order to attract customers place order, some manufacturers made promises such as “lifetime maintenance”, “one-year replacement” and “absolute 100% pure copper” during negotiations, but they did not write these promises on the contract. It would be risky for the manufacturer to accept the account after the transformer fails, so any commitment must be written down in the contract to protect our interests as much as possible
Where to buy Small Transformer for PCB
Unicreed have more than 13 years experiences in manufacture small transformer for PCB, if you are looking for small transformer for PCB pls feel free to visit us or send us inquiry. https://unicreed-transformer.com/
Take time to pay more attention to the details when you buy a small transformer for PCB, read more, ask more, compare more, so that you can choose qualified products.
