Polytronics, as a leading global manufacturer of circuit protection components, focuses on technological innovation and diversification in its fuse products, which are mainly divided into the following five categories, each designed for specific application scenarios:
1、 Self healing fuse (PPTC)
The core product line of Juting is based on high polymer positive temperature coefficient materials. When overcurrent occurs, the impedance rises sharply and the circuit is cut off. After troubleshooting, it automatically recovers and can be reused.
SMD series: such as SMD0805, SMD2920, etc., with sizes ranging from 0805 to 2920, a maximum voltage of 60V, and a holding current of 0.3A-5A (such as SMD2920P500TF supporting 5A holding current).
Plug in type (RLD series): such as RLD16P series, with a working voltage of 16V and a holding current of 2.5-14A (such as RLD16P1400GF), suitable for high current devices such as USB hubs and motors.
Applications: Consumer electronics, battery protection, communication device power management.
2、 Disposable Fuse
Traditional blown fuses require replacement after melting, have strong breaking ability, and comply with international certifications such as UL/CSA.
Surface mount: such as CLS series, including 1612, 2213, 3820 packages, with a voltage resistance of 36-80V and a current coverage of 12-45A (such as CLM3820P5045 supporting 45A).
Tube type: including glass and ceramic tubes, with a voltage coverage of 32V-600V, suitable for high reliability scenarios such as power adapters.
Application: Industrial power supply, charger overcurrent protection.
3、 Electronic fuse (eFuse)
Integrated circuit protection scheme, integrating overvoltage, overcurrent, and overtemperature protection, supporting programmable control.
PP18S76/PP20S76/PP23S76 series: response time in milliseconds, built-in soft start function, reducing current surge. Supports USB PD fast charging protocol and server power management.
Application: SSD hard drive, TypeC interface, lithium battery protection.
4、 Thermal Fuse
Specially designed for over temperature protection, it will permanently melt when the temperature reaches the threshold.
Using special alloy materials with outstanding high temperature resistance, the working temperature range covers -40 ℃ to+125 ℃.
Application: Home appliances (such as electric irons), automotive electronic cooling systems.
5、 Static suppression element (PolyTrans) ®）
Specially designed for electrostatic protection of signal ports, in compliance with IEC 6100042 level standards.
By using polymer composite materials to quickly isolate transient voltages and protect precision circuits.
Applications: USB 3.0, HDMI interface, set-top box.
Comparison and Overview of Juding's Main Fuse Product Lines
|Category | Representative Model | Core Features | Typical Application Scenarios|
|Self healing fuses (PPTC) | SMD2920 series, RLD16P series | Automatic reset, reusable, fast response | Battery/USB protection, motor control|
|Disposable fuse | CLS series, glass/ceramic tube | high breaking capacity, needs to be replaced, high reliability | power adapter, industrial power supply|
|Electronic Fuse (eFuse) | PP18S76/PP20S76 Series | Programmable Control, Triple Protection, Soft Start | TypeC Interface, Server/SSD|
|Temperature fuse | | Temperature triggered melting, wide temperature range support | Home appliances, automotive electronic cooling systems|
|Static suppression component | PolyTrans ® Series | Static protection, compliant with IEC 6100042 standard | USB/HDMI interface, communication equipment|
Through the multi-dimensional product layout mentioned above, Juting covers the full scenario circuit protection needs from consumer electronics to industrial grade high-voltage equipment, and continues to promote technological iteration in the fields of new energy and intelligent protection (such as 800V high-voltage fuses). When selecting, it is necessary to comprehensively consider voltage, current, response speed, and reset requirements to match specific application scenarios.