DFJ-35

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The DFJ-35 is a specialty fuse designed for automotive and power electronic applications. The fuse is designed for use in high temperature environments, providing both over-current and over-voltage protection. It has a quick-blow feature that helps protect devices and circuitry from damage while providing a false low fault indication. The DFJ-35 is a great fit for applications such as power distribution, motor control, industrial control, and lighting and sensor equipment.

The DFJ-35 is a sensitive fuse, meaning it is designed to detect high currents of short duration rather than large over currents. It is constructed with a thermistor element in its core that responds quickly to current flow. The core is surrounded by a layer of insulating material to provide over-voltage protection. The fuse is also designed with an alloy ribbon for extra strength and durability. The whole assembly is encapsulated in a case that is clear so you can easily see the condition of the fuse.

The operation of the DFJ-35 is simple. When the current exceeds the rated level, the thermistor element heats up rapidly. This rapid heating causes the alloy ribbon to expand, which breaks the circuit and trips the fuse. It is important to note that the amount of current the fuse can handle in this manner is dependent on the temperature. Therefore, when the temperature increases, the current limit decrease, thus protecting the device or circuitry from further damage.

In addition to its fast response time, the DFJ-35 is also designed to handle currents up to 150 amperes. This level of current is higher than what is typically seen in many applications, making the fuse ideal for power communication systems, solar inverters, power quality systems, and EV chargers. A built-in arcing element (ARC-A) helps protect the fuse from arcing and fragmentation related failure.

The DFJ-35 is UL rated and CAN/CSA certified for use in a variety of power electronic applications. The product comes in several sizes ranging from 10A to 150A and is available in either time lag or non-time lag designs. The fuse is designed to work even in high vibration environments and is temperature resistant up to 125°C, making it ideal for automotive and other industrial applications.

The DFJ-35 fuse is an excellent choice for protecting power electronics from over-current and over-voltage. Its sensitive design allows it to trip quickly during overload conditions, while the built-in arcing element prevents arcing and fragmentation. The wide range of current ratings make the DFJ-35 suitable for a variety of applications, including automotive and power electronics.

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