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108-473K
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Product Detailed Parameters
- Description：FIXED IND 47UH 36MA 19 OHM SMD
- Series：108
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Type：-
- Material - Core：Iron
- Inductance：47 µH
- Tolerance：±10%
- Current Rating (Amps)：36 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：19Ohm Max
- Q @ Freq：30 @ 2.5MHz
- Frequency - Self Resonant：9MHz
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Inductance Frequency - Test：2.5 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 108-473K is a fixed surface-mount inductor with an inductance of 47 µH and a tolerance of ±10%. It features a maximum DC resistance of 19 Ohms and a rated current of 36 mA. The component utilizes an unshielded wirewound construction on a nonstandard package with two leads. It operates within a temperature range of -55°C to +125°C and is classified as an RF inductor.
Feature Summary
- Unshielded wirewound construction for general-purpose applications
- Compact surface-mount design with two standard terminals
- Ferrite core material providing stable inductance characteristics
Applications
- RF circuit filtering
- General-purpose signal processing
- Electronic equipment impedance matching
Procurement Notes
Verify the specific manufacturer source, as API Delevan assets have undergone corporate restructuring. Confirm RoHS compliance status directly with the supplier, as historical data indicates variations across different production batches and legacy stock sources. Ensure the part number matches the exact unshielded specification required for the design.
Selection Notes
Select this component when an unshielded inductor is required to minimize magnetic interference coupling in adjacent circuits. The high DC resistance limits its use to low-current signal paths rather than power delivery. Verify that the nonstandard footprint dimensions fit the available PCB real estate compared to standard metric packages.
Part Context
This part belongs to the broader category of fixed surface-mount inductors manufactured by API Delevan. It is distinct from shielded power chokes like the S1210R series due to its lack of magnetic shielding and higher resistance profile. It serves niche RF applications where specific Q-factor or parasitic characteristics of unshielded windings are preferred.
Replacement Considerations
Publicly confirmed direct substitute part numbers are not available in the provided documentation. Designers should consult official cross-reference tools or contact the manufacturer for validated alternatives that match the 47 µH value, 36 mA rating, and unshielded form factor.
