SDF DF119S

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The thermal cutoff (TCO) serves as a protection device and is mainly used to detect and interrupt a potentially hazardous temperature condition. Thermal fuse or thermally actuated switch is one of the important electronic components which is used in Smartphones, desktop computers, set-top boxes, power supplies, rechargeable lithium batteries, electrical sockets, cables, HDMI interfaces, etc. The SDF DF119S thermal cutoff is intended to serve as an automatic safety device in cases of excessive temperatures. It is an inexpensive, passive device constructed of a fusible alloy link and metal body.

Application Field of SDF DF119S

The SDF DF119S thermal cutoff has a wide range of applications. It is used in applications that require temperature protection, such as in cell phones, computers and tablets. It is used to protect the device from being damaged due to high temperature. The SDF DF119S can also be used as a thermal fuse to detect temperature rise in the electronics, and then cut off power from those components that are overheating. This can prevent catastrophic damage from occurring. It is used in power supply units, air conditioners, displays, LEDs and other electronic products.

Working Principle of SDF DF119S

The SDF DF119S thermal cutoff works by using a fusible alloy link. This alloy link has a certain melting temperature which is predetermined through engineering calculations. This melting temperature is usually chosen to be slightly lower than the desired maximum temperature at which the device should be operating. When the temperature of the device rises above the disposable temperature, the fusible alloy link melts and disrupts the circuit in which it is a component, thereby preventing any further current from passing.

The SDF DF119S is designed to be used in circuits that have between 8 - 16 VDC. The device will open within 5 - 20 minutes depending on the power and temperature applied. SDF DF119S is a low breaking capacity device and has a wide variety of mounting options. This allows for a greater level of flexibility when designing and installing the device. The SDF DF119s can also be used in combination with other electronic components such as diodes, transistors, resistors and LED\'s.

The SDF DF119S thermal cutoff is an effective way to protect electronic devices from becoming damaged due to excessive temperature. Its low cost, small size, and wide variety of mounting options make it an ideal choice for many applications.In addition, the SDF DF119S can provide reliable protection and can work in tandem with other components, such as diodes and transistors, to ensure optimal protection for the device.

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