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Product Detailed Parameters
- Description：FIXED IND 18UH 125MA 1.77 OHM
- Series：43FS
- Mfr：Toko America Inc.
- Package：Cut Tape (CT)
- Type：Wirewound
- Material - Core：Ferrite
- Inductance：18 µH
- Tolerance：±10%
- Current Rating (Amps)：125 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：1.77Ohm Max
- Q @ Freq：50 @ 25.2MHz
- Frequency - Self Resonant：16MHz
- Ratings：-
- Operating Temperature：-10°C ~ 60°C
- Inductance Frequency - Test：25.2 MHz
- Mounting Type：Surface Mount
- Package / Case：1812 (4532 Metric)
- Supplier Device Package：1812
- Size / Dimension：0.177" L x 0.126" W (4.50mm x 3.20mm)
- Height - Seated (Max)：0.126" (3.20mm)
- Features：-
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Overview
The 300LS-180K=P2 is a fixed inductor from the 43FS series manufactured by Toko America Inc. It features an unshielded wirewound construction with a ferrite core. The component has an inductance of 18 µH and a maximum DC resistance of 1.77 Ohms. It supports a current rating of 125 mA and offers a tolerance of ±10%. The device is housed in a 1812 (4532 Metric) surface-mount package.
Feature Summary
- Unshielded wirewound design for standard electromagnetic applications
- Ferrite core material providing stable inductive performance
- Surface-mount 1812 package format for automated assembly
Applications
- General purpose signal filtering circuits
- Power supply input/output stages
- Electromagnetic interference suppression
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for obsolete product status indicators. Ensure packaging specifications match cut tape requirements. Validate part markings against official datasheet documentation to prevent counterfeit substitution.
Selection Notes
Evaluate the 1812 footprint compatibility with existing PCB layouts. Consider the 1.77 Ohm DC resistance impact on power efficiency. Assess the 125 mA current limit against peak operational loads. Verify that the unshielded design does not interfere with nearby sensitive components due to magnetic field exposure.
Part Context
This component belongs to the 43FS series of fixed inductors. It represents a passive electronic element designed for integration into printed circuit boards. The series utilizes wirewound technology with ferrite cores to achieve specific inductance values within standardized package dimensions.
Replacement Considerations
Cross-reference compatible parts using identical inductance, current rating, and package dimensions. Verify equivalent DC resistance and tolerance specifications. Check for matching core material properties to ensure similar frequency response characteristics.
