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108R-183KS
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Product Detailed Parameters
- Description：FIXED IND 18UH 75MA 4.4 OHM SMD
- Series：108R
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Type：-
- Material - Core：Iron
- Inductance：18 µH
- Tolerance：±10%
- Current Rating (Amps)：75 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：4.4Ohm Max
- Q @ Freq：32 @ 2.5MHz
- Frequency - Self Resonant：21MHz
- 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 108R-183KS is a surface-mount RF inductor with an 18 uH nominal inductance and 10% tolerance. It features a maximum DC resistance of 4.4 Ohms and operates within a temperature range of -55 C to +125 C. The component utilizes a nonstandard two-lead SMD/SMT termination style for PCB mounting. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. The unit weighs approximately 50 mg.
Feature Summary
- Surface-mount construction designed for automated PCB assembly processes
- Ferrite core technology providing stable inductance characteristics
- Wide operating temperature range suitable for demanding environments
Applications
- RF signal processing circuits
- High-frequency filtering applications
- Impedance matching networks
Procurement Notes
Verify current availability status as the component may be discontinued or subject to limited supply constraints. Confirm RoHS compliance details through official documentation before integration. Check for authorized distributor channels to ensure authenticity. Validate lead time requirements against project schedules due to potential obsolescence risks associated with legacy components.
Selection Notes
Select this component when specific 18 uH RF inductance is required in a compact 1008-style footprint. Ensure circuit design accommodates the 4.4 Ohm DC resistance value. Verify that the nonstandard two-lead package aligns with existing PCB land patterns. Consider thermal management capabilities given the high-temperature operational rating.
Part Context
This part belongs to the Delevan fixed inductor family, specifically categorized under RF Inductors - SMD. It serves as a passive component for radio frequency applications, distinct from power choke variants within the manufacturer's portfolio. The series designation indicates specialized construction for high-frequency performance rather than high-current power delivery.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with API Delevan archives for equivalent specifications if sourcing new inventory.
