API Delevan 2474-18L Fixed Inductor Equivalent & Substitute Parts

Part Overview

The API Delevan 2474-18L is a 27 µH unshielded molded inductor designed for through-hole mounting applications. This ferrite-core component operates at 2.25 A rated current with a maximum DC resistance of 70 mOhm and functions across the temperature range of -55°C to 125°C. The part is currently active in production with 1000 pieces available in stock.

Identifying equivalent and substitute parts becomes necessary when the original 2474-18L reaches end-of-life status, when supply constraints occur, or when design revisions require components with improved compliance certifications. The 2474R-18L series provides a direct functional alternative while offering enhanced regulatory compliance.

Substiute Parts

2474-18L

API Delevan Inc.In Stock: 10792474-18L Datasheet

Current PartRFQ

2474R-18L

API Delevan Inc.In Stock: 11222474R-18L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2474-18L is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must match the following criteria:

Electrical Parameters (Must Match Exactly):

• Inductance value: 27 µH
• Inductance tolerance: ±15%
• Current rating: 2.25 A
• Saturation current: 1.2 A
• DC resistance: 70 mOhm maximum
• Core material: Ferrite

Mechanical Parameters (Must Match Exactly):

• Mounting type: Through hole
• Package configuration: Axial
• Physical dimensions: 0.240" Dia x 0.740" L (6.10mm x 18.80mm)

Operating Conditions (Must Match Exactly):

• Temperature range: -55°C to 125°C
• Test frequency: 1 kHz

The 2474R-18L meets all electrical and mechanical equivalence requirements and is classified as a direct substitute for the 2474-18L.

Parameter Comparison

Engineering Selection Recommendations

The 2474R-18L serves as the direct electrical and mechanical equivalent to the 2474-18L. Both parts are manufactured by API Delevan Inc. and maintain identical specifications across inductance, current rating, DC resistance, core material, mounting configuration, and physical dimensions.

The primary distinction between these parts is regulatory compliance status. The 2474-18L is RoHS non-compliant, while the 2474R-18L achieves ROHS3 compliance. Both parts maintain REACH Unaffected status and share the same ECCN (EAR99) and HTSUS (8504.50.4000) classifications.

Selection between these parts should be based on project compliance requirements. Applications requiring RoHS3 compliance must use the 2474R-18L. Applications without RoHS compliance mandates may use either part based on availability and supply chain considerations. Both parts are currently in active production status with adequate inventory levels.

Frequently Asked Questions (FAQ)

Q: Can the 2474R-18L be used as a direct replacement for the 2474-18L in existing designs?

A: Yes. The 2474R-18L is electrically and mechanically identical to the 2474-18L. Both parts share the same 27 µH inductance, 2.25 A current rating, 70 mOhm DC resistance, ferrite core construction, unshielded configuration, through-hole mounting, axial package type, and physical dimensions of 0.240" Dia x 0.740" L. No circuit modifications are required for substitution.

Q: What is the difference between the 2474-18L and 2474R-18L?

A: The electrical and mechanical specifications are identical. The 2474R-18L achieves ROHS3 compliance, while the 2474-18L is RoHS non-compliant. Both parts maintain REACH Unaffected status.

Q: Are there any temperature or frequency limitations when substituting these parts?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C and are tested at 1 kHz. Substitution does not introduce any thermal or frequency-related constraints.

Q: Will the 2474R-18L fit in the same PCB footprint as the 2474-18L?

A: Yes. Both parts share identical physical dimensions of 0.240" Dia x 0.740" L (6.10mm x 18.80mm) and use the same axial through-hole mounting configuration. No PCB layout modifications are necessary.

Q: Which part should be selected for new designs?

A: For new designs, the 2474R-18L is recommended due to its ROHS3 compliance status, which aligns with current regulatory requirements and industry standards. Both parts are in active production with adequate inventory availability.

Q: Are there any performance differences in inductance tolerance or DC resistance between these parts?

A: No. Both parts maintain ±15% inductance tolerance and 70 mOhm maximum DC resistance. Saturation current is identical at 1.2 A for both parts.