BOURNS new product: minimum surface mount type 54V compact thermal cutoff overheating protection device.
The SE series is currently the industry's smallest 54V SMD breaker, with a footprint size of 4.7mm x 2.8mm and a height of just 1.23mm. The trip temperatures for the SE series are 72℃, 77℃, 82℃, and 85℃ (with a tolerance of ±5℃). With the spread of USB in the EU, the demand for fast charging and high-power cables is expected to further expand in the future. Additionally, due to the common charger directive in the EU in 2024, devices such as mobile phones, tablets, and headphones are required to be equipped with USB-C connectors. As fast charging increases the risk of heat generation, there is a growing demand for more advanced overheating protection features. The SE series meets all the requirements of USB Power Delivery to address this demand and has been newly developed to support the USB PD standard's maximum of 240W. The new SE series complies with the RoHS directive. BOURNS has improved resistance to humid environments by adopting its best-in-class corrosion-resistant bimetallic mechanism compared to standard TCO devices.
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basic information
- Small thermal cutoff (TCO) device - Surface mount, minimal footprint - Over-temperature and over-current protection - Controls abnormal excessive current to rated limits almost instantaneously - Wide range of temperature options - High corrosion resistance - Complies with USB PD 240 W (48 V / 5 A) specifications - Compliant with RoHS directive* - Halogen-free**
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Applications/Examples of results
Overheat protection - USB Type C cable (e.g., smartphones or laptops, up to 240W) - Electronic cigarettes - Heaters Battery cell protection - Wearable devices - Portable devices
Detailed information
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Current vs. Temperature Curve
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LED protection
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Company information
The development of electronics has given people great dreams and has turned those dreams into reality, one by one. This development has been passed on to the 21st century, inspiring even greater dreams and hopes. I am deeply grateful and delighted to have been able to engage in work that contributes to this segment of the electronics industry. Moving forward, I will continue to serve as a conduit for the appropriate information on semiconductors and electronic components, so that I can help realize humanity's great dreams and support the product and information development of our clients. I am committed to walking alongside our clients and growing together in the information society of the 21st century. However, on the other hand, global environmental issues have become increasingly prominent. As a member of society, I feel the importance of leaving a rich natural environment for the future and preserving the fundamental value of humanity. I am determined to strive towards becoming a company that harmonizes with nature and society as we move towards an endless future.