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0819-38F
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Product Detailed Parameters
- Description：FIXED IND 3.9UH 178MA 1.5 OHM TH
- Series：819
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Type：Molded
- Material - Core：Iron
- Inductance：3.9 µH
- Tolerance：±1%
- Current Rating (Amps)：178 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：1.5Ohm Max
- Q @ Freq：50 @ 7.9MHz
- Frequency - Self Resonant：95MHz
- 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 0819-38F is a leaded RF inductor featuring an axial termination style and unshielded molded construction. It provides an inductance of 3.9 uH with a tight tolerance of 1%. The component has a maximum DC resistance of 1.5 ohms and supports a maximum DC current of 178 mA. Designed for PCB mounting, it operates within standard environmental conditions.
Feature Summary
- Unshielded molded coil design for RF applications
- Axial leaded termination for through-hole mounting
- High precision 1% inductance tolerance
Applications
- RF circuit filtering
- Impedance matching networks
- Signal processing stages
Procurement Notes
Verify the specific manufacturer datasheet to confirm exact electrical tolerances and physical dimensions before integration. Ensure the axial lead configuration matches the target PCB footprint requirements. Confirm that the 178 mA current rating aligns with the operational load of the intended RF application to prevent saturation or overheating during continuous use.
Selection Notes
Select this component when high precision is required for RF signal paths due to its 1% tolerance. The unshielded nature necessitates careful layout planning to minimize electromagnetic interference with adjacent traces. Verify that the axial form factor fits the assembly constraints, as surface mount alternatives may be needed for automated pick-and-place processes.
Part Context
This part belongs to the Delevan 0819 series of fixed RF inductors. The series offers various inductance values with different tolerance codes, such as the 10F variant which shares similar physical dimensions but differs in inductance value. These components are engineered for reliability in radio frequency environments requiring stable inductive characteristics.
Replacement Considerations
Cross-reference with other Delevan 0819 series parts if different inductance values are acceptable. Verify mechanical compatibility with existing footprints when substituting with generic axial inductors, ensuring the DC resistance and current ratings meet or exceed the original specifications.
