| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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68 pcs
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68 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Dielectric Withstanding Voltage (Minimum @ Terminal to shrink tube cover) | |
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Bourns 1130-3R9M-RC is a fixed inductor from the 1130 series of high-current chokes. It offers a wirewound drum core construction on a ferrite bobbin, providing 3.9µH inductance with ±20% tolerance when measured at 1kHz. The component is rated for a DC current of 21A, based on a 50°C maximum temperature rise and 5% maximum inductance drop. With a maximum DC resistance of 3mOhm, it supports efficient high-current operation.
The inductor is unshielded and designed for through-hole mounting in a radial vertical cylinder package. It measures 27.94mm in diameter and 21.34mm in height. The operating temperature range is -55°C to +105°C, making it suitable for industrial and power electronic environments.
This component is typically used in power supply filtering, DC-DC converters, and other high-current choke applications where low losses and high saturation current are required. The epoxy coated ferrite core provides mechanical protection and stable performance over temperature.
The inductance is 3.9µH at 1kHz, with a tolerance of ±20%.
The maximum DC current rating is 21A, defined as the current that causes a 50°C maximum temperature rise and a 5% maximum inductance drop.
The maximum DC resistance is 3mOhm.
The inductor uses a through-hole mounting with a radial, vertical cylinder package.
The operating temperature range is -55°C to +105°C.
No, this inductor is unshielded.
The core is made of ferrite and uses a drum core, wirewound construction.