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0819-40F
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Product Detailed Parameters
- Description：FIXED IND 4.7UH 150MA 2.1 OHM TH
- Series：819
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Type：Molded
- Material - Core：Iron
- Inductance：4.7 µH
- Tolerance：±1%
- Current Rating (Amps)：150 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：2.1Ohm Max
- Q @ Freq：55 @ 7.9MHz
- Frequency - Self Resonant：88MHz
- Ratings：-
- Operating Temperature：-55°C ~ 105°C
- Inductance Frequency - Test：7.9 MHz
- Mounting Type：Through Hole
- Package / Case：Axial
- Supplier Device Package：-
- Size / Dimension：0.078" Dia x 0.200" L (1.98mm x 5.08mm)
- Height - Seated (Max)：-
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Overview
The Delevan 0819-40F is a leaded RF inductor featuring an axial termination style and molded unshielded construction. It provides an inductance of 4.7 uH with a tight tolerance of 1%. The component supports a maximum DC current of 150 mA and exhibits a maximum DC resistance of 2.1 Ohms. Key electrical characteristics include a minimum Q factor of 45 and a self-resonant frequency of 130 MHz. Physically, it measures 5.08 mm in length and 1.98 mm in diameter, designed for PCB mount applications.
Feature Summary
- Molded unshielded coil construction for consistent RF performance
- Axial leaded termination suitable for through-hole PCB mounting
- High precision 1% inductance tolerance for critical circuit tuning
Applications
- RF signal processing circuits
- Impedance matching networks
- Filter design in radio frequency systems
Procurement Notes
Verify the specific manufacturer part number against official datasheets to ensure compatibility with design requirements. Confirm that the RoHS status aligns with regulatory standards for the target market. Check authorized distributors for availability as supply chain conditions may vary. Ensure ordering quantities meet standard packaging multiples if applicable.
Selection Notes
Select this component when precise inductance values are required for RF applications. The 1% tolerance ensures stability in tuned circuits. Consider the 150 mA current rating to prevent saturation. The axial package facilitates easy integration into existing through-hole layouts. Verify the self-resonant frequency meets the operational bandwidth needs.
Part Context
This component belongs to the Delevan 0819 series of fixed RF inductors. These parts are characterized by their molded epoxy coating and unshielded design. The series offers various inductance values tailored for different RF frequencies. They are widely used in communication equipment and test instruments requiring reliable passive components.
FAQ
What is the self-resonant frequency of the 0819-40F?
The self-resonant frequency is 130 MHz.
Is the 0819-40F shielded?
No, the 0819-40F is an unshielded inductor.
