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Product Detailed Parameters
- Description：MOLDED UNSHIELDED RF COILS AXIAL
- Series：15M
- Mfr：Gowanda Electronics
- Package：Tape & Reel (TR)
- Type：Molded
- Material - Core：Phenolic
- Inductance：3.9 µH
- Tolerance：±10%
- Current Rating (Amps)：280 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：2.3Ohm Max
- Q @ Freq：33 @ 7.9MHz
- Frequency - Self Resonant：100MHz
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Inductance Frequency - Test：7.9 MHz
- Mounting Type：Through Hole
- Package / Case：Axial
- Supplier Device Package：Axial
- Size / Dimension：0.156" Dia x 0.375" L (3.96mm x 9.53mm)
- Height - Seated (Max)：-
- Features：-
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Overview
The 15M391K is a fixed axial leaded inductor from Gowanda Electronics, featuring a molded unshielded construction. It offers an inductance of 3.9 µH with a tolerance of ±10%. The component has a maximum DC resistance of 2.3 Ohms and a current rating of 280 mA. It exhibits a Q factor of 33 at 7.9 MHz and a self-resonant frequency of 100 MHz. Designed for through-hole mounting, it operates within a temperature range of -55°C to 105°C.
Feature Summary
- Unshielded molded design suitable for applications where magnetic shielding is unnecessary or detrimental.
- Axial lead configuration facilitates standard through-hole PCB integration.
- Optimized RF performance characteristics including specific Q factor and self-resonant frequency.
Applications
- RF circuit filtering
- Impedance matching networks
- General purpose inductive applications
Procurement Notes
Verify RoHS compliance status as the base part number may indicate leaded composition; confirm if LF suffix is required for environmental standards. Ensure axial lead spacing matches PCB layout requirements. Cross-reference datasheet specifications against system thermal and current constraints before finalizing procurement orders.
Selection Notes
Select this component when a low-inductance value near 3.9 µH is required for RF stages. Consider the unshielded nature for sensitive magnetic environments. Evaluate the 280 mA current limit against peak load conditions. Compare Q factor requirements at operating frequencies to ensure signal integrity in filter designs.
Part Context
Part of the 15M series of wirewound molded inductors. This series provides various inductance values with consistent axial packaging. Suitable for aerospace, defense, and medical sectors requiring reliable passive components.
Replacement Considerations
Check equivalent models within the 15M series for different inductance values. Verify cross-compatibility with other manufacturers' axial molded inductors having similar 3.9 µH ratings and 280 mA limits.
FAQ
Is the 15M391K shielded?
No, the 15M391K is an unshielded molded inductor.
What is the self-resonant frequency of this inductor?
The self-resonant frequency is 100 MHz.
