SMB2.5-2 Ferrite Bead Equivalent & Substitute Parts

Part Overview

The SMB2.5-2 is a surface-mount ferrite bead manufactured by API Delevan Inc., designed for electromagnetic interference (EMI) suppression in electronic circuits. This component operates at 490 Ohms impedance at 100 MHz with a maximum current rating of 9.5A and minimal DC resistance of 5mOhm. The part is actively produced and maintains full RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to provide design flexibility, inventory alternatives, and supply chain continuity while maintaining identical electrical and mechanical specifications.

Substiute Parts

SMB2.5-2

API Delevan Inc.In Stock: 1085SMB2.5-2 Datasheet

Current PartRFQ

SMB2.5R-2

API Delevan Inc.In Stock: 1653SMB2.5R-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMB2.5-2 ferrite bead is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Impedance value (490 Ohms @ 100 MHz), maximum current rating (9.5A), and DC resistance (5mOhm) must be identical. These parameters directly determine circuit performance and thermal behavior.

Mechanical Compatibility: Package type (2-SMD, J-Lead), mounting method (Surface Mount), physical dimensions (0.460" L x 0.283" W, height 0.200"), and series classification must match exactly to ensure PCB layout compatibility and assembly process alignment.

Environmental & Compliance Standards: Operating temperature range (-40°C ~ 125°C), RoHS3 compliance status, MSL rating (1), REACH status (Unaffected), and ECCN classification (EAR99) must be maintained to satisfy regulatory requirements and supply chain specifications.

Product Status: Only active, currently manufactured parts are included as substitutes to ensure long-term availability and consistent quality.

Parameter Comparison

Engineering Selection Recommendations

Both the SMB2.5-2 and SMB2.5R-2 are functionally equivalent ferrite beads suitable for direct substitution in EMI suppression applications. Selection between these parts should be based on inventory availability and supply chain considerations rather than technical performance differences.

The SMB2.5-2 maintains 1009 pieces in current stock, while the SMB2.5R-2 variant has 1620 pieces available. Both parts are actively manufactured by API Delevan Inc. and carry identical electrical specifications, mechanical dimensions, and compliance certifications (RoHS3, REACH Unaffected, EAR99).

For applications requiring immediate component availability, the SMB2.5R-2 offers higher stock levels. For design continuity with existing part numbers, the SMB2.5-2 remains the primary specification. Both parts satisfy identical regulatory and environmental requirements across all operating conditions.

Frequently Asked Questions (FAQ)

Q: Can SMB2.5R-2 be used as a direct replacement for SMB2.5-2 in existing designs?

A: Yes. The SMB2.5R-2 is electrically and mechanically equivalent to the SMB2.5-2. All critical parameters including impedance (490 Ohms @ 100 MHz), current rating (9.5A), DC resistance (5mOhm), package type (2-SMD, J-Lead), physical dimensions, and compliance certifications are identical. No circuit redesign or PCB layout modification is required.

Q: Are there any differences in thermal performance between these parts?

A: No. Both parts share identical DC resistance (5mOhm maximum) and operating temperature range (-40°C ~ 125°C). Thermal behavior in the circuit will be equivalent.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SMB2.5-2 and SMB2.5R-2 are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Moisture sensitivity level (MSL 1) is identical for both parts.

Q: What is the difference between the SMB2.5 and SMB2.5R series designations?

A: The series designation reflects internal API Delevan Inc. product line classification. Both series maintain identical electrical and mechanical specifications for this impedance and current rating combination. The series difference does not affect functional performance or compatibility.

Q: Can these parts be used interchangeably in high-frequency EMI filtering applications?

A: Yes. Both parts are specified at 490 Ohms impedance at 100 MHz and are suitable for EMI suppression across the operating frequency range. The identical impedance specification ensures equivalent filtering performance.

Q: What is the significance of the MSL 1 (Unlimited) moisture sensitivity rating?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning these components have unlimited shelf life under standard storage conditions and do not require special moisture control during handling, storage, or assembly. Both parts carry this rating.