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105R-391J
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Product Detailed Parameters
- Description：FIXED IND 390NH 585MA 280MOHM SM
- Series：105R
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Type：-
- Material - Core：Iron
- Inductance：390 nH
- Tolerance：±5%
- Current Rating (Amps)：585 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：280mOhm Max
- Q @ Freq：35 @ 25MHz
- Frequency - Self Resonant：185MHz
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Inductance Frequency - Test：25 MHz
- Mounting Type：Surface Mount
- Package / Case：Nonstandard, 2 Lead
- Supplier Device Package：-
- Size / Dimension：0.100" L x 0.100" W (2.54mm x 2.54mm)
- Height - Seated (Max)：0.075" (1.91mm)
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Overview
The Delevan 105R-391J is a surface-mount RF inductor with a fixed inductance of 390 nH and a tolerance of ±5%. It features a maximum DC resistance of 280 mOhms and a rated current of 585 mA. The component has an unshielded design with standard SMD/SMT terminations, measuring 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. It operates within a temperature range of -55°C to +125°C, offering a minimum Q factor of 35 and a self-resonant frequency of 185 MHz.
Feature Summary
- Unshielded SMD construction for minimal magnetic interference
- High-frequency performance with 185 MHz self-resonant frequency
- Robust thermal stability across -55°C to +125°C operating range
Applications
- RF signal processing circuits
- High-frequency filtering applications
- Impedance matching networks
Procurement Notes
Verify the specific manufacturer part number against official Delevan documentation to ensure authenticity. Confirm that the unshielded variant matches the design requirements, as shielded alternatives exist within the same series. Check for end-of-life status or discontinuation notices prior to finalizing procurement plans.
Selection Notes
Select this component when an unshielded RF inductor is required for space-constrained PCB layouts. Ensure the 585 mA current rating meets circuit demands. Consider the 280 mOhm DCR impact on power loss. Verify compatibility with high-frequency operations up to 185 MHz before integration into the design.
Part Context
This component belongs to the 105/R series of RF inductors manufactured by Delevan. It is designed for surface-mount technology applications requiring precise inductance values in radio frequency environments. The series offers various inductance options with consistent physical dimensions for standardized PCB footprints.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate similar unshielded SMD RF inductors from other manufacturers if direct replacements are unavailable.
