Bourns 9250-153-RC 15µH Shielded Drum Core Wirewound Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9250-153-RC is a 15µH shielded drum core wirewound inductor rated for 315mA continuous current with 800mOhm maximum DC resistance. This through-hole axial component operates across -55°C to 105°C and is designed for applications requiring controlled inductance with electromagnetic shielding. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

9250-153-RC

Bourns Inc.In Stock: 10359250-153-RC Datasheet

Current PartRFQ

9250A-153-RC

Bourns Inc.In Stock: 41399250A-153-RC Datasheet

DirectRFQ

ER1641-153KM

API Delevan Inc.In Stock: 1066ER1641-153KM Datasheet

SimilarRFQ

ER1641-153KP

API Delevan Inc.In Stock: 1140ER1641-153KP Datasheet

SimilarRFQ

ER1641-153KR

API Delevan Inc.In Stock: 775ER1641-153KR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters: inductance value (15µH), tolerance (±10%), current rating (315mA), DC resistance (800mOhm maximum), core material (ferrite), shielding configuration, package dimensions (0.162" Dia × 0.410" L), and mounting type (through-hole axial).

The substitute parts are grouped into two categories:

Direct Manufacturer Substitute (Bourns Series): The 9250A-153-RC maintains identical electrical specifications and physical dimensions as the main part, with the primary difference being construction type (molded versus drum core) and extended operating temperature range (-55°C to 125°C). This part is active and ROHS3 compliant.

Similar Manufacturer Substitutes (API Delevan ER1641 Series): The ER1641-153KM and ER1641-153KP variants provide equivalent electrical performance with identical inductance, current rating, DC resistance, and package dimensions. The ER1641-153KR variant is electrically equivalent but unshielded, suitable only for applications where electromagnetic shielding is not required. All API Delevan parts are active but RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: The Bourns 9250A-153-RC is the preferred substitute for the obsolete 9250-153-RC. Both parts are manufactured by Bourns Inc., maintain identical electrical specifications and physical dimensions, and the 9250A-153-RC is ROHS3 compliant with active product status. The extended operating temperature range (-55°C to 125°C) provides additional thermal margin compared to the original part.

Secondary Recommendations: The API Delevan ER1641-153KM and ER1641-153KP are electrically and mechanically equivalent alternatives when Bourns parts are unavailable. Both maintain all critical electrical parameters and physical dimensions. Selection between these two variants depends on packaging requirements: ER1641-153KM and ER1641-153KP are supplied in tape and reel format suitable for automated assembly. Note that both API Delevan parts are RoHS non-compliant, which may restrict use in applications subject to RoHS regulations.

Conditional Recommendation: The API Delevan ER1641-153KR is suitable only for applications where electromagnetic shielding is not a functional requirement. This unshielded variant maintains all other electrical and mechanical specifications but differs fundamentally in shielding configuration.

Frequently Asked Questions (FAQ)

Q: Can the 9250A-153-RC directly replace the obsolete 9250-153-RC?

A: Yes. The 9250A-153-RC provides direct substitution with identical inductance (15µH), current rating (315mA), DC resistance (800mOhm), shielding, and package dimensions. The primary differences are construction type (molded versus drum core) and extended operating temperature range (-55°C to 125°C versus -55°C to 105°C).

Q: What is the difference between the ER1641-153KM and ER1641-153KP?

A: Both parts are electrically and mechanically identical. The designation difference reflects packaging or manufacturing variants within the API Delevan ER1641 series. Both are supplied in tape and reel format and maintain equivalent performance specifications.

Q: When should the ER1641-153KR (unshielded) be used instead of shielded variants?

A: The ER1641-153KR is appropriate only for applications where electromagnetic shielding is not required. If the original design specified a shielded inductor, the unshielded variant may introduce electromagnetic interference or performance degradation. Use only when circuit design explicitly permits unshielded operation.

Q: Are there compliance differences between Bourns and API Delevan substitutes?

A: Yes. The Bourns 9250A-153-RC is ROHS3 compliant. The API Delevan ER1641 series parts (ER1641-153KM, ER1641-153KP, ER1641-153KR) are RoHS non-compliant. Applications subject to RoHS regulations must use the Bourns 9250A-153-RC.

Q: Do all substitutes maintain the same physical footprint?

A: Yes. All substitute parts maintain identical package dimensions of 0.162" diameter × 0.410" length (4.11mm × 10.41mm) and through-hole axial mounting configuration, ensuring direct PCB compatibility.

Q: What is the saturation current specification for API Delevan parts?

A: The saturation current (Isat) specification is not provided in the API Delevan part data. The Bourns 9250-153-RC specifies 250mA saturation current. Verify saturation performance requirements with API Delevan technical documentation if this parameter is critical to your application.