API Delevan 4221-1 Ferrite Bead Equivalent & Substitute Parts

Part Overview

The API Delevan 4221-1 is a surface-mount ferrite bead designed for electromagnetic interference (EMI) suppression in high-frequency applications. This 47 Ohm ferrite bead operates at 100 MHz with a maximum current rating of 5A and is housed in a 2-SMD, J-Lead package. The part is currently in active production status. Substitute parts are identified to address inventory availability, compliance requirements, or manufacturing continuity needs.

Substiute Parts

4221-1

API Delevan Inc.In Stock: 15204221-1 Datasheet

Current PartRFQ

4221R-1

API Delevan Inc.In Stock: 247654221R-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The API Delevan 4221R-1 is identified as a direct substitute for the 4221-1 based on the following critical parameters:

• Identical impedance specification: 47 Ohms @ 100 MHz
• Matching current rating: 5A maximum
• Identical package configuration: 2-SMD, J-Lead
• Matching physical dimensions: 0.197" L x 0.120" W (5.00mm x 3.05mm)
• Matching height: 0.128" (3.25mm)
• Identical operating temperature range: -55°C ~ 125°C
• Identical mounting type: Surface Mount
• Identical MSL rating: 1 (Unlimited)

The 4221R-1 maintains full electrical and mechanical compatibility with the 4221-1, enabling direct substitution in circuit designs without layout or performance modifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 4221-1 and 4221R-1 are active production parts from API Delevan Inc. with identical electrical and mechanical specifications. The primary distinction is regulatory compliance: the 4221R-1 carries ROHS3 certification, while the 4221-1 is RoHS non-compliant. Selection between these parts should be determined by the regulatory requirements of the end application and target market. For applications requiring RoHS3 compliance, the 4221R-1 is the appropriate choice. Both parts maintain REACH Unaffected status and identical ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can the 4221R-1 be used as a direct replacement for the 4221-1 in existing designs?

A: Yes. The 4221R-1 provides identical electrical performance (47 Ohms @ 100 MHz, 5A rating) and mechanical compatibility (2-SMD, J-Lead package, matching dimensions and height). No circuit redesign or PCB layout modification is required.

Q: What is the primary difference between these two parts?

A: The 4221R-1 is ROHS3 compliant, while the 4221-1 is RoHS non-compliant. All electrical and mechanical parameters are identical.

Q: Are there any performance differences in impedance or current handling?

A: No. Both parts specify 47 Ohms @ 100 MHz impedance and 5A maximum current rating. The 4221-1 provides a typical DCR of 0.8mOhm; the 4221R-1 does not specify this parameter in the available data.

Q: Do these parts have the same package footprint?

A: Yes. Both use the 2-SMD, J-Lead package with identical dimensions (0.197" L x 0.120" W / 5.00mm x 3.05mm) and height (0.128" / 3.25mm).

Q: Which part should be selected for new designs?

A: For new designs, the 4221R-1 is recommended due to its ROHS3 compliance status, ensuring compatibility with current regulatory requirements and supply chain standards.