Equivalent & Substitute Parts for Bourns 9250-184-RC

Part Overview

The Bourns 9250-184-RC is a 180 µH shielded drum core wirewound inductor rated for 135 mA with a maximum DC resistance of 4.4 Ohm. This through-hole axial component operates across -55°C to 105°C and is designed for applications requiring fixed inductance with ferrite core shielding. The product is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

9250-184-RC

Bourns Inc.In Stock: 9329250-184-RC Datasheet

Current PartRFQ

9250A-184-RC

Bourns Inc.In Stock: 11669250A-184-RC Datasheet

DirectRFQ

ER1641-184KM

API Delevan Inc.In Stock: 790ER1641-184KM Datasheet

SimilarRFQ

ER1641-184KP

API Delevan Inc.In Stock: 921ER1641-184KP Datasheet

SimilarRFQ

ER1641-184KR

API Delevan Inc.In Stock: 813ER1641-184KR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 9250-184-RC is determined by the following electrical and mechanical parameters:

• Inductance Value: 180 µH (±10% tolerance)
• Current Rating: 135 mA minimum
• DC Resistance: 4.4 Ohm maximum
• Shielding: Shielded configuration required
• Core Material: Ferrite
• Frequency Characteristics: Q @ 790 kHz = 55; Self Resonant Frequency = 8 MHz
• Mounting: Through hole axial package
• Physical Dimensions: 0.162" Dia x 0.410" L (4.11mm x 10.41mm)

All substitute parts listed meet these core electrical and mechanical specifications. Differences in construction type (drum core versus molded), operating temperature range, RoHS compliance status, and packaging format are noted in the comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Bourns 9250A-184-RC): This is the primary substitute for the obsolete 9250-184-RC. Both are Bourns products with identical electrical specifications and physical dimensions. The 9250A-184-RC features molded construction versus the original drum core design, operates at an extended upper temperature limit of 125°C (versus 105°C), and maintains ROHS3 compliance. This part is currently in active production status with bulk packaging available.

Alternative Substitutes (API Delevan ER1641 Series): The ER1641-184KM, ER1641-184KP, and ER1641-184KR are functionally equivalent alternatives from API Delevan Inc. All three variants meet the electrical and mechanical requirements of the original part. These are supplied in tape and reel packaging format suitable for automated assembly. Operating temperature range is -55°C to 105°C, matching the original specification. These parts are RoHS non-compliant, which may be a consideration for applications subject to RoHS regulations.

Selection between the Bourns 9250A-184-RC and API Delevan ER1641 variants should be based on compliance requirements, packaging needs, and supply chain preferences. The Bourns option provides ROHS3 compliance and extended temperature capability. The API Delevan options provide tape and reel packaging for high-volume automated production.

Frequently Asked Questions (FAQ)

Q: Can the 9250A-184-RC directly replace the obsolete 9250-184-RC?

A: Yes. The 9250A-184-RC is the direct Bourns replacement. It maintains identical inductance (180 µH), current rating (135 mA), DC resistance (4.4 Ohm max), and physical 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 are the differences between the Bourns 9250A-184-RC and the API Delevan ER1641 series?

A: Both meet the core electrical specifications. Key differences include manufacturer, packaging format (Bourns offers bulk; API Delevan offers tape and reel), RoHS compliance status (Bourns is ROHS3 compliant; API Delevan variants are non-compliant), and operating temperature upper limit (Bourns extends to 125°C; API Delevan to 105°C).

Q: Are all three API Delevan ER1641 variants (KM, KP, KR) electrically identical?

A: Yes. The ER1641-184KM, ER1641-184KP, and ER1641-184KR are electrically and mechanically identical. The suffix designations reflect packaging or lead finish variations. All three meet the same electrical specifications and physical dimensions.

Q: Does packaging format affect electrical performance?

A: No. Bulk and tape and reel packaging formats do not affect electrical performance. Packaging selection is based on assembly process requirements and supply chain logistics.

Q: What compliance considerations apply to these substitutes?

A: The Bourns 9250A-184-RC is ROHS3 compliant. The API Delevan ER1641 series variants are RoHS non-compliant. Applications subject to RoHS regulations should use the Bourns 9250A-184-RC. All parts listed are REACH unaffected and classified as EAR99 for export control purposes.

Q: Are physical dimensions identical across all substitute options?

A: Yes. All parts maintain the same axial package dimensions of 0.162" diameter by 0.410" length (4.11mm x 10.41mm), ensuring mechanical compatibility in through-hole PCB applications.