SL32 4R023-B

Series:	BigAMP
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
R @ 25°C:	4 Ohms
Tolerance:	±20%
Current - Steady State Max:	23A
R @ Current:	20 mOhms
Diameter:	1.220" (31mm)
Lead Spacing:	0.307" (7.80mm)
Approvals:	--

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SL32 4R023-B Inrush Current Limiters (ICL)Inrush currents are transient voltages or currents that occur when electrical power is applied to an electrical load for the first time, or after the load has been physically disconnected from the power source for a period of time and then reconnected. Inrush currents usually last for a microsecond or less but can produce much higher loads than normal current levels. In certain situations, such as with sensitive electronic components, these transient inrush currents can be damaging. Inrush Current Limiters (ICLs) are safety devices used to reduce and control inrush currents in power systems.SL32 4R023-B is a type of reverse conduction Inrush Current Limiter. This ICL has a maximum peak voltage of 32V and is capable of limiting momentary inrush currents up to 40A. It also features a small foot-print and ult-low voltage drop capacitor, making it an ideal solution for compact power systems. The device also has automatic start-up, adjustable current limiting, and thermal protection.The working principle of the SL32 4R023-B Inrush Current Limiter is fairly straightforward. When the device is powered up, it turns on a low resistance switch, which controls the peak current drawn by the load. As current passes through the load, it is sensed by the voltage sensing coil connected between the switch and the power supply. As the current rises, the voltage drop in the coil increases, limiting the current flow and preventing an inrush overload.The operation of the SL32 4R023-B can be categorized into two main phases. During the first phase, the switch remains open, allowing no current to flow through the load. This is known as the “Off” phase, during which the load remains disconnected from the power supply. During the second phase, the switch is engaged, allowing current to flow through the load. This is the “On” phase, during which current passes through the load.In applications such as telecommunications equipment, HDTVs, lighting, computers, and medical instruments, the SL32 4R023-B ICL can be used to help protect sensitive components from inrush currents that could cause damage. The device can also be used to protect smaller loads that would be subject to significant inrush current at switch on. Additionally, the SL32 4R023-B can be used in equipment with sensitive timing circuits, such as energy meters or microwave ovens, by preventing the current inrush from causing inaccurate readings.Overall, the SL32 4R023-B Inrush Current Limiter is an ideal solution for reducing and controlling inrush currents in power systems to help protect against component damage and inaccurate readings. With its small foot-print and adjustable current limiting, this device is a great choice for compact power systems.

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