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103R-391KS
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Product Detailed Parameters
- Description：FIXED IND 390NH 635MA 240MOHM SM
- Series：103R
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Type：-
- Material - Core：Ferrite
- Inductance：390 nH
- Tolerance：±10%
- Current Rating (Amps)：635 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：240mOhm Max
- Q @ Freq：22 @ 25MHz
- Frequency - Self Resonant：235MHz
- 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 103R-391KS is an unshielded surface-mount RF inductor with a nominal inductance of 390 nH and a tolerance of ±10%. It features a maximum DC resistance of 240 mΩ and supports a maximum DC current of 610 mA. The component has a minimum Q factor of 22 and a self-resonant frequency of 215 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.
Feature Summary
- Unshielded construction for minimal magnetic interference
- Designed specifically for radio frequency applications
- Surface-mount technology for automated PCB assembly
Applications
- RF circuit filtering
- Impedance matching networks
- High-frequency signal processing
Procurement Notes
Verify the specific manufacturer datasheet to confirm exact electrical tolerances and thermal ratings before integration. Ensure the selected package size matches the target PCB footprint. Confirm RoHS compliance status if required by the final product specifications. Cross-reference the part number with official distributor catalogs to ensure authenticity and availability.
Selection Notes
Select this component when a compact, unshielded inductor is required for RF circuits operating near 215 MHz. Consider the 610 mA current limit and 240 mΩ resistance for power handling requirements. Compare against shielded alternatives if magnetic coupling isolation is necessary. Verify that the 10% tolerance meets the design precision needs.
Part Context
This part belongs to the Delevan 103R series of general-purpose RF inductors. These components are characterized by their small form factor and suitability for high-frequency SMD applications. The series offers various inductance values while maintaining consistent physical dimensions for standardized board layouts.
Replacement Considerations
Direct substitutes include other 390 nH SMD RF inductors from manufacturers such as Coilcraft or Murata. Ensure replacement parts match the 2525 metric footprint and similar Q-factor specifications. Verify that alternative components meet the same current and resistance requirements.
