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Product Detailed Parameters
- Description：INDUCT ARRAY 2 COIL 150UH SMD
- Series：4448
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Number of Coils：2
- Inductance - Connected In Parallel：150 µH
- Inductance - Connected In Series：600 µH
- Tolerance：±15%
- Current Rating - Parallel：640 mA
- Current Rating - Series：320 mA
- DC Resistance (DCR) - Parallel：696mOhm Max
- DC Resistance (DCR) - Series：2.784Ohm Max
- Shielding：Unshielded
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：Nonstandard
- Size / Dimension：0.530" L x 0.530" W (13.46mm x 13.46mm)
- Height：0.310" (7.87mm)
- Current Saturation - Parallel：-
- Current Saturation - Series：-
- Ratings：-
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Overview
The Delevan 4448-30L is a coupled inductor from the 4448/R series, designed for surface mount technology (SMD) applications. It features a toroidal core construction with two coils. The component provides an inductance of 150 µH when connected in parallel and 600 µH in series, with a tolerance of 15%. The maximum DC resistance is 696 mOhms. Current ratings are specified at 640 mA for parallel connection and 320 mA for series connection. The physical dimensions are standardized within the series, typically measuring 13.71 mm in length and width, with a height of 7.87 mm.
Feature Summary
- Dual-coil coupled inductor architecture suitable for power supply filtering and noise suppression.
- Molded SMT package design ensuring mechanical stability and automated assembly compatibility.
- Toroidal core configuration providing efficient magnetic coupling between windings.
Applications
- DC-DC converter output filtering
- Common mode noise suppression in high-current circuits
- Power integrity enhancement in server and storage systems
Procurement Notes
Verify the specific suffix 'L' against the manufacturer's latest datasheet to confirm pinout orientation and termination plating specifications. Ensure that the required current rating aligns with the parallel or series configuration intended for the circuit design. Confirm RoHS compliance status as indicated in official documentation before finalizing procurement orders.
Selection Notes
Select this component when a compact, high-current coupled inductor is required for space-constrained PCB layouts. The choice depends on whether the application utilizes the coils in parallel for higher current handling or in series for increased inductance. Verify thermal performance under load conditions relative to the 696 mOhm DC resistance specification.
Part Context
This part belongs to the Delevan 4448/R series of coupled inductors. The series is characterized by molded SMT packages and toroidal cores, offering consistent physical dimensions across various inductance values. The 4448-30L specifically addresses applications requiring 150 µH parallel inductance with high current capability.
Replacement Considerations
Cross-reference with other parts in the 4448/R series for different inductance values if electrical parameters do not match. Verify footprint compatibility with existing PCB designs when considering alternative manufacturers' coupled inductors.
FAQ
What is the difference in inductance between parallel and series connections?
In parallel connection, the inductance is 150 µH, while in series connection, it increases to 600 µH.
What are the current ratings for this component?
The maximum DC current is 640 mA when connected in parallel and 320 mA when connected in series.
