06R120BU

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PTC Resettable Fuses(positive temperature coefficient of resistor) are becoming increasingly important in circuit protection and modern electronic design. The 06R120BU is the typical representative of this product line. Not only is it highly reliable and cost-effective, but it is also an versatile device that can be used in many different applications.

Typically, 06R120BU resettable fuses are used in a variety of electronic devices, ranging from consumer products such as household appliances, to highly intricate industrial applications. This device is also the most commonly used protection module for automotive and lithium battery systems. Its ability to reset itself after current surges makes it an excellent choice for these applications.

The working principle of the 06R120BU is based on a thermally sensitive negative temperature coefficient of resistance (NTCR) device. This device has an internal positive temperature coefficient (PTC) of resistance. When the temperature of the device rises, the resistance of the PTC element increases, leading to current limiting characteristics. In normal operation, the resistance of the PTC element will be small, thus allowing a small amount of current to pass through the fuse. When there is an excessive amount of current present, the temperature of the device will increase, causing the resistance of the PTC element to rise sharply. This will limit the amount of current that can be passed through the device. As the current is brought below the maximum operating limit, the temperature of the device will drop, and the resistance of the PTC element will decrease, returning the device to its normal operating condition.

The temperature limit of the PTC element can be set using a precision thermistor. This thermistor is typically designed for an operating temperature range of 0°C to 150°C. The trip temperature of the 06R120BU is typically set to 65°C. When the device reaches this temperature, it will begin to limit the current passing through it, which will then reduce the temperature back to normal operating levels.

The 06R120BU is designed for use in applications with a maximum current of 12 amps. Its maximum voltage rating is 125 volts AC/DC, meaning it can be used in any application that requires this level of protection. It is also designed to provide protection against voltage transients, which makes it suitable for use in applications where high levels of protection are needed. The device also features a low thermal impedance, meaning it can dissipate heat more efficiently than other devices.

The 06R120BU is a versatile device, which can be used to provide protection against both short and long-term current surges in a variety of different applications. Its ability to reset itself after each surge makes it an excellent choice for many applications. Its robust design provides reliable protection, while the low cost makes it an attractive option for many applications. Therefore, the 06R120BU is an excellent choice for many different applications.

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