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103R-181F
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Product Detailed Parameters
- Description：FIXED IND 180NH 695MA 200MOHM SM
- Series：103R
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Type：-
- Material - Core：Ferrite
- Inductance：180 nH
- Tolerance：±1%
- Current Rating (Amps)：695 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：200mOhm Max
- Q @ Freq：25 @ 25MHz
- Frequency - Self Resonant：550MHz
- 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-181F is an unshielded fixed RF inductor designed for surface-mount applications. It features a nominal inductance of 180 nH with a tight tolerance of ±1%. The component operates with a maximum DC current rating of 695 mA and exhibits a maximum DC resistance of 200 mOhms. It achieves a minimum Q factor of 25 at 25 MHz and has a self-resonant frequency of 550 MHz. The unit utilizes a nonstandard package configuration with two leads, suitable for PCB mounting.
Feature Summary
- Unshielded construction optimized for radio frequency signal processing
- High self-resonant frequency capability for broadband applications
- Low DC resistance to minimize power loss in series configurations
Applications
- RF matching networks
- Impedance transformation circuits
- Filter design in communication systems
Procurement Notes
Verify the specific package style upon ordering, as datasheets may describe this part using varying terminology such as standard or nonstandard lead configurations. Confirm that the supplier documentation explicitly identifies the terminal type to ensure compatibility with the intended PCB footprint and assembly process.
Selection Notes
Select this component when a low-inductance value is required for high-frequency operation. The 180 nH rating and 550 MHz self-resonant frequency make it suitable for VHF bands. Ensure the circuit current remains below the 695 mA limit to prevent saturation and maintain stable inductance values during operation.
Part Context
This component belongs to the Delevan 103R series of RF inductors. These parts are characterized by their air-core or similar unshielded designs, which provide consistent performance without magnetic core saturation effects typical of shielded alternatives. The series supports various inductance values tailored for RF front-end modules.
FAQ
What is the self-resonant frequency of the 103R-181F?
The self-resonant frequency is 550 MHz.
Is the 103R-181F shielded?
No, the 103R-181F is an unshielded inductor.
