SG311

Series:	SURGE-GARD™
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
R @ 25°C:	5 Ohms
Tolerance:	±15%
Current - Steady State Max:	7A
R @ Current:	70 mOhms
Diameter:	0.60" (15.24mm)
Lead Spacing:	0.310" (7.87mm)
Approvals:	CSA, UR

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Inrush Current Limiters (ICL) are a class of components designed to protect electrical circuits from voltage spikes and other electrical disturbances by limiting the amount of current flowing into the circuit at power start-up. Uncontrolled inrush current can damage delicate components, cause short circuits, and lead to a potentially hazardous situation. One of the more widely used ICLs is theSG311.The SG311 is an N-channel power MOSFET which provides fast and reliable inrush current limiting. The component operates by using the voltage generated between the gate and source terminals of the MOSFET as the sensing voltage for the inrush current limiting circuit. When a large differential voltage is present, the SG311 begins limiting the amount of current flowing into the circuit. When the differential voltage drops below a minimum threshold, the limiting ceases and the full power of the circuit is restored.The SG311 can be used in a wide variety of applications, including power supplies, motor control systems, lights, heaters, and process control systems. The component\'s fast response time and ease of use make it an ideal choice for many applications. In addition, the SG311 has a wide range of operating temperatures and is compatible with most types of power sources.The SG311 is easily integrated into a variety of existing designs. The inrush current limiters can be built into circuit boards or further enhanced with additional components. This increases its versatility in a number of systems. For example, a resistor can be added to the circuit to reduce the peak current, while a capacitor can be used to restrict the high-frequency noise caused by inrush current.The SG311 can also be used in combination with other ICLs to create circuits that are resistant to surges and spikes. In this configuration, the SG311 is used in combination with a circuit snubber. The snubber typically consists of a resistor and a capacitor in parallel or in series, which together form a damping apparatus to suppress voltage spikes. This combination of ICLs and snubbers can significantly reduce the amount of electrical damage caused by inrush current.In conclusion, the SG311 is an effective and versatile inrush current limiter that can be used in a wide variety of applications. Its fast response time and low cost make it a popular choice among electronics designers. In addition, the SG311 can be easily integrated and paired with other components in order to create surge-resistant circuits. This makes it an ideal choice for designers who need to protect their circuits from damage caused by inrush current.

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