MLS0805-4S4-300 Equivalent & Substitute Parts

Part Overview

The MLS0805-4S4-300 is a ferrite bead manufactured by Ferroxcube, designed for electromagnetic interference (EMI) suppression in surface mount applications. This component provides 30 Ohms of impedance at 100 MHz with a maximum current rating of 600mA and operates across the temperature range of -40°C to 125°C. The part is actively produced and RoHS3 compliant, making it suitable for modern electronic assemblies requiring ferrite bead filtering in compact 0805 (2012 Metric) form factors.

Equivalent and substitute parts are identified when component availability is limited, lead times are extended, or design flexibility is required while maintaining functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

MLS0805-4S4-300

FerroxcubeIn Stock: 738MLS0805-4S4-300 Datasheet

Current PartRFQ

ILBB0805ER320V

Vishay DaleIn Stock: 2038ILBB0805ER320V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLS0805-4S4-300 is determined by the following criteria:

Mechanical Compatibility: Package type (0805/2012 Metric), mounting type (Surface Mount), and physical dimensions must match or be compatible with the original footprint.

Electrical Compatibility: Impedance at 100 MHz, current rating, and DC resistance must fall within acceptable tolerance ranges for the application. The substitute part ILBB0805ER320V meets these criteria with an impedance of 32 Ohms at 100 MHz (within 6.7% of the original 30 Ohms specification) and identical current rating of 600mA.

Environmental & Compliance: Operating temperature range and RoHS3 compliance status ensure the substitute part functions within the same environmental conditions and regulatory framework as the original component.

Parameter Comparison

Engineering Selection Recommendations

The ILBB0805ER320V from Vishay Dale is a qualified substitute for the MLS0805-4S4-300. Both components are actively produced, RoHS3 compliant, and share identical mechanical specifications for 0805 surface mount applications.

The ILBB0805ER320V provides a lower DC resistance (60mOhm versus 100mOhm), which reduces power dissipation in the ferrite bead. The impedance difference of 2 Ohms (32 Ohms versus 30 Ohms) represents a 6.7% variance and remains within typical tolerance ranges for ferrite bead applications. The extended operating temperature range of -55°C to 125°C on the substitute part provides additional thermal margin compared to the original -40°C to 125°C specification.

Selection between these parts should be based on availability, lead time requirements, and specific application constraints related to impedance tolerance and thermal performance.

Frequently Asked Questions (FAQ)

Q: Can the ILBB0805ER320V be used as a direct replacement for the MLS0805-4S4-300?

A: Yes. Both components share identical package dimensions (0805/2012 Metric), mounting type (Surface Mount), current rating (600mA), and physical footprint. The impedance difference of 2 Ohms at 100 MHz is within acceptable tolerance for ferrite bead substitution in most EMI suppression applications.

Q: What is the significance of the DC resistance difference between these parts?

A: The ILBB0805ER320V has a maximum DC resistance of 60mOhm compared to 100mOhm for the MLS0805-4S4-300. Lower DC resistance reduces resistive losses and heat generation during operation, which is beneficial for high-current applications or thermally constrained designs.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the MLS0805-4S4-300 and ILBB0805ER320V are RoHS3 compliant, ensuring compatibility with regulatory requirements for electronic assemblies in regulated markets.

Q: Does the extended temperature range of the substitute part affect compatibility?

A: No. The ILBB0805ER320V operates from -55°C to 125°C, which encompasses the original part's range of -40°C to 125°C. The extended lower temperature limit provides additional operational margin without introducing compatibility issues.

Q: Are there any packaging or reel format considerations?

A: The ILBB0805ER320V is supplied in Cut Tape (CT) and Digi-Reel® packaging formats. Verify that the packaging format is compatible with your assembly process and procurement requirements before selection.