— IC芯片 | 连接器 | 传感器 | 被动器件 —
Product Detailed Parameters
- Description:FIXED IND 680NH 435MA 520MOHM SM
- Series:103R
- Mfr:Delevan
- Package:Tape & Reel (TR)
- Type:-
- Material - Core:Ferrite
- Inductance:680 nH
- Tolerance:±1%
- Current Rating (Amps):435 mA
- Current - Saturation (Isat):-
- Shielding:Unshielded
- DC Resistance (DCR):520mOhm Max
- Q @ Freq:22 @ 25MHz
- Frequency - Self Resonant:175MHz
- 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)
Download product information
Overview
The Delevan 103R-681FS is an unshielded surface-mount RF inductor with a nominal inductance of 680 nH and a tolerance of 1%. It features a maximum DC resistance of 520 mOhms and supports a maximum DC current of 435 mA. The component exhibits a minimum Q factor of 22 and a self-resonant frequency of 175 MHz. Designed for RF applications, it utilizes standard SMD/SMT termination types.
Feature Summary
- Unshielded construction suitable for specific RF circuit layouts
- Surface-mount technology (SMD) design for automated PCB assembly
- Standard terminal configuration for general-purpose mounting
Applications
- RF signal processing circuits
- Impedance matching networks
- Filtering applications in radio frequency systems
Procurement Notes
Verify current availability status as the component may be subject to discontinuation or limited supply conditions. Confirm RoHS compliance details directly with the manufacturer or authorized distributors prior to procurement. Ensure that the ordering suffix corresponds to the required packaging format, such as reel quantities, if applicable for production needs.
Selection Notes
Select this component when an unshielded inductor with 680 nH inductance is required for RF designs. Consider the 435 mA current rating and 520 mOhm DC resistance against circuit load requirements. Evaluate the 175 MHz self-resonant frequency to ensure suitability for the target operating band. Compare physical dimensions against available PCB real estate constraints.
Part Context
This part belongs to the Delevan fixed inductor family, specifically categorized under RF Inductors - SMD. It is manufactured by API Delevan Inc., a provider of passive electronic components. The product line focuses on high-performance inductors for telecommunications and industrial electronics, utilizing specialized winding techniques for consistent RF performance.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative unshielded SMD RF inductors having similar 680 nH values and comparable current ratings before substitution.
FAQ
Is the 103R-681FS shielded?
No, the 103R-681FS is an unshielded inductor.
What is the self-resonant frequency of this component?
The self-resonant frequency is 175 MHz.
ChipApex | Global Electronic Components Supplier






