3483R-470M

Part Overview

The 3483R-470M is a 47 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 700 mA with a maximum DC resistance of 310 mOhm. This component is classified as Active and available in surface mount 2-SMD packaging. Finding equivalent and substitute parts is necessary when the primary component is unavailable, when design requirements demand shielding or different temperature ranges, or when alternative manufacturers offer equivalent electrical performance with improved availability or cost structure.

Substiute Parts

3483R-470M

API Delevan Inc.In Stock: 8703483R-470M Datasheet

Current PartRFQ

SLF7032T-470MR67-2PF

TDK CorporationIn Stock: 25312SLF7032T-470MR67-2PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3483R-470M is determined by matching the following critical parameters: inductance value (47 µH), current rating capability (minimum 700 mA), DC resistance (not exceeding 310 mOhm), tolerance (±20%), core type (drum core, wirewound ferrite), and mounting method (surface mount). The identified substitute part, SLF7032T-470MR67-2PF, maintains the same inductance and tolerance while operating at a slightly reduced current rating of 670 mA with lower DC resistance of 288 mOhm. Physical dimensions and height remain comparable, allowing for direct footprint compatibility. The primary differences are the shielded configuration and extended operating temperature range of the substitute, which may be advantageous in electromagnetic interference-sensitive applications.

Parameter Comparison

Engineering Selection Recommendations

The 3483R-470M remains the preferred selection for new designs due to its Active product status and full compliance with ROHS3 and REACH requirements. The SLF7032T-470MR67-2PF substitute is classified as Not For New Designs, making it suitable only for legacy system maintenance, repairs, or situations where the primary part is unavailable. The substitute provides superior electrical characteristics with lower DC resistance and an extended operating temperature range, beneficial for applications requiring thermal or EMI shielding performance. However, component selection must account for the 30 mA reduction in current rating and the shielded versus unshielded configuration difference when evaluating long-term design reliability.

Frequently Asked Questions (FAQ)

Q: Can the SLF7032T-470MR67-2PF directly replace the 3483R-470M in production assemblies? A: Direct electrical replacement is valid when current demands do not exceed 670 mA. Physical compatibility is confirmed by comparable footprint dimensions (7.0mm vs 7.2mm length/width and 3.4mm vs 3.5mm height), though PCB layout verification is required. The shielded configuration of the substitute may require trace routing adjustments around the component.

Q: What are the implications of the shielded versus unshielded configuration difference? A: The unshielded 3483R-470M generates and is susceptible to magnetic field coupling. The shielded SLF7032T-470MR67-2PF reduces radiated and conducted EMI, beneficial in noise-sensitive circuits. Selection depends on circuit layout and EMI performance requirements, not on functional compatibility.

Q: Are there temperature rating limitations when substituting? A: The 3483R-470M operates from -20°C to 85°C, while the SLF7032T-470MR67-2PF operates from -40°C to 105°C. The substitute is suitable for applications within the original part's temperature range and extends capability for wider-temperature applications.

Q: What is the significance of the "Not For New Designs" status on the substitute part? A: This classification indicates that TDK is discontinuing or has discontinued this product line. The part remains functionally available but should not be selected for new designs that will require long-term supplier support. Use only when the primary part is unobtainable.

Q: How does the 30 mA current rating reduction affect circuit performance? A: If the application circuit draws 670 mA or less, the substitute performs identically. Applications requiring the full 700 mA rating of the main part cannot use this substitute without detailed thermal and reliability analysis.