API Delevan 2474-31L Fixed Inductor Equivalent & Substitute Parts

Part Overview

The API Delevan 2474-31L is a fixed unshielded molded inductor rated at 330 µH with a maximum current capacity of 740 mA and DC resistance of 650 mOhm. This through-hole axial component operates across a temperature range of -55°C to 125°C and is designed for applications requiring stable inductance values in compact form factors.

The 2474-31L is classified as an active product with current inventory availability. Substitute parts may be required due to supply chain constraints, manufacturing discontinuation of specific variants, or design revisions within the same product family that maintain electrical and mechanical compatibility.

Substiute Parts

2474-31L

API Delevan Inc.In Stock: 11332474-31L Datasheet

Current PartRFQ

2474R-31L

API Delevan Inc.In Stock: 20602474R-31L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2474-31L is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Inductance value: 330 µH
• Inductance tolerance: ±15%
• Current rating: 740 mA
• Saturation current: 350 mA
• DC resistance: 650 mOhm maximum

Mechanical Parameters (Must Match):

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

Environmental Parameters (Must Match):

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

The 2474R-31L qualifies as a direct substitute because it maintains identical electrical, mechanical, and environmental specifications while representing a product family variant within the same manufacturer series.

Parameter Comparison

Engineering Selection Recommendations

2474-31L (Original Part):

• Product Status: Active
• RoHS Status: RoHS non-compliant
• Current Inventory: 1025 Pcs

2474R-31L (Substitute Part):

• Product Status: Active
• RoHS Status: ROHS3 Compliant
• Current Inventory: 2014 Pcs

The 2474R-31L represents an updated variant within the API Delevan 2474 series that achieves ROHS3 compliance while maintaining full electrical and mechanical equivalence to the 2474-31L. Both parts are active products with confirmed inventory availability. Selection between these parts should be based on regulatory compliance requirements for the end application. Applications subject to RoHS3 regulations must use the 2474R-31L. Applications without RoHS compliance requirements may use either part based on availability and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Are the 2474-31L and 2474R-31L electrically interchangeable?

A: Yes. Both parts maintain identical inductance values (330 µH ±15%), current ratings (740 mA), saturation current (350 mA), and DC resistance (650 mOhm maximum). Electrical performance is equivalent across the specified operating temperature range of -55°C to 125°C.

Q: What is the difference between the 2474-31L and 2474R-31L?

A: The primary difference is RoHS compliance status. The 2474R-31L is ROHS3 compliant, while the 2474-31L is RoHS non-compliant. All other electrical, mechanical, and environmental specifications are identical.

Q: Can I use the 2474R-31L as a direct replacement for the 2474-31L in existing designs?

A: Yes. The 2474R-31L is a direct substitute with identical physical dimensions (0.240" Dia x 0.740" L), axial through-hole mounting configuration, and all electrical parameters. No circuit modifications or PCB layout changes are required.

Q: Which part should I select for new designs?

A: For new designs subject to RoHS3 regulations, select the 2474R-31L. For applications without RoHS compliance requirements, either part is acceptable based on availability and supply chain factors.

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

A: No. Both parts operate identically across the full temperature range of -55°C to 125°C and are tested at 1 kHz. No operational limitations exist between the two parts.

Q: What is the saturation current specification, and how does it affect part selection?

A: The saturation current (Isat) of 350 mA indicates the current level at which the inductor begins to exhibit nonlinear behavior due to core saturation. Both parts have identical saturation specifications and must not be operated continuously above this threshold. The maximum continuous current rating of 740 mA remains the primary design parameter.