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0819-70F
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Product Detailed Parameters
- Description：FIXED IND 82UH 54.5MA 16 OHM TH
- Series：819
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Type：Molded
- Material - Core：Ferrite
- Inductance：82 µH
- Tolerance：±1%
- Current Rating (Amps)：54.5 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：16Ohm Max
- Q @ Freq：45 @ 2.5MHz
- Frequency - Self Resonant：10MHz
- Ratings：-
- Operating Temperature：-55°C ~ 105°C
- Inductance Frequency - Test：2.5 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 0819-70F is a fixed axial leaded RF inductor from the 0819 series. It features an unshielded molded construction with an iron core. The nominal inductance is 82 µH with a tolerance of 1%. The maximum DC resistance is 16 Ohms, and the minimum Q factor is 45 at 1 MHz. The self-resonant frequency is 3.5 MHz. The component has a cylindrical body measuring 5.08 mm in length and 1.98 mm in diameter, with standard axial terminals for PCB mounting.
Feature Summary
- Molded unshielded coil design utilizing an iron core for stable RF performance
- Axial leaded termination style suitable for through-hole PCB mounting
- High precision 1% inductance tolerance for accurate circuit tuning
Applications
- RF filter circuits
- Impedance matching networks
- Tuned amplifier stages
Procurement Notes
Verify the specific datasheet version to confirm RoHS compliance status, as historical data indicates non-compliance. Ensure the application environment does not require shielding, as this model is unshielded. Confirm that the 16 Ohm DC resistance and 54.5 mA current rating are within the system's thermal and electrical limits before integration.
Selection Notes
Select this component when high inductance stability and tight tolerance are required for RF applications. The unshielded design necessitates careful layout to prevent magnetic interference with nearby components. Consider the low self-resonant frequency limit when operating at higher frequencies compared to air-core alternatives.
Part Context
This part belongs to the Delevan 0819 series of fixed RF inductors. These components are characterized by their molded epoxy construction and axial leads. The series offers various inductance values, with the 0819-70F providing a specific 82 µH value for specialized RF filtering needs.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other Delevan 0819 series variants if different inductance or tolerance values are required.
