Bourns 9130-44 Fixed Inductor: Equivalent & Substitute Parts

Part Overview

The Bourns 9130-44 is a 10 µH unshielded drum core wirewound inductor rated for 130 mA with a maximum DC resistance of 3.7 Ohm, designed for through-hole axial mounting. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. API Delevan Inc. manufactures several active alternatives that maintain electrical and mechanical compatibility with the original specification.

Substiute Parts

9130-44

Bourns Inc.In Stock: 12479130-44 Datasheet

Current PartRFQ

1025-44K

API Delevan Inc.In Stock: 39741025-44K Datasheet

SimilarRFQ

1025R-44K

API Delevan Inc.In Stock: 25631025R-44K Datasheet

SimilarRFQ

ER1025-44KM

API Delevan Inc.In Stock: 726ER1025-44KM Datasheet

SimilarRFQ

ER1025-44KP

API Delevan Inc.In Stock: 760ER1025-44KP Datasheet

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ER1025-44KR

API Delevan Inc.In Stock: 779ER1025-44KR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

• Inductance Value: Must be 10 µH
• Tolerance: Must be ±10%
• Operating Temperature Range: Must span -55°C to 105°C
• Mounting Configuration: Must be through-hole axial
• Physical Dimensions: Must match 0.095" Dia × 0.250" L
• Shielding Type: Must be unshielded
• Q Factor @ 7.9 MHz: Must be 55
• Self Resonant Frequency: Must be 50 MHz

All substitute parts listed below meet these core electrical and mechanical requirements. Variations in current rating and DC resistance are permitted within the specified tolerance band, provided the part can safely operate at the design current of the original circuit.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: API Delevan 1025R-44K

The 1025R-44K is the preferred substitute for new designs and production transitions. This part maintains electrical equivalence with the original 9130-44 specification while offering ROHS3 compliance, addressing regulatory requirements for modern manufacturing. The molded construction provides enhanced mechanical stability compared to the original drum core design. Current rating of 144 mA exceeds the original 130 mA specification, providing additional design margin.

Secondary Recommendations: API Delevan ER1025 Series (ER1025-44KM, ER1025-44KP, ER1025-44KR)

The ER1025 series parts provide exact electrical equivalence to the original 9130-44, matching both the 130 mA current rating and 3.7 Ohm maximum DC resistance. These molded inductors are available in tape and reel packaging for automated assembly. The ER1025-44KR variant includes military qualification under MIL-PRF-39010/09, suitable for applications requiring military-grade components.

Alternative: API Delevan 1025-44K

The 1025-44K offers higher current capacity (144 mA) and lower DC resistance (3.3 Ohm) compared to the original specification. This part is suitable for applications where improved thermal performance is beneficial. Available in cut tape packaging for manual assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1025R-44K directly replace the Bourns 9130-44 in existing designs?

A: Yes. The 1025R-44K maintains all critical electrical parameters: 10 µH inductance, ±10% tolerance, -55°C to 105°C operating range, and identical physical dimensions. The higher current rating (144 mA vs. 130 mA) and lower DC resistance (3.3 Ohm vs. 3.7 Ohm) provide improved performance margins. Through-hole axial mounting is identical.

Q: What is the difference between the ER1025-44KM, ER1025-44KP, and ER1025-44KR variants?

A: These three parts are electrically and mechanically identical, differing only in packaging format. ER1025-44KM and ER1025-44KP are supplied in tape and reel (TR) format for automated pick-and-place assembly. ER1025-44KR is also tape and reel but includes military qualification under MIL-PRF-39010/09. Selection depends on assembly method and regulatory requirements.

Q: Does the 1025-44K with 144 mA rating affect circuit performance compared to the original 130 mA part?

A: No. The higher current rating indicates the component can safely handle greater current without saturation. In circuits designed for 130 mA operation, the 1025-44K operates within its safe operating region with additional thermal margin. The 3.3 Ohm DC resistance is lower than the original 3.7 Ohm, resulting in reduced power dissipation.

Q: Are there RoHS compliance differences among the substitute parts?

A: Yes. The 1025R-44K is ROHS3 compliant, meeting current environmental regulations. The ER1025 series and 1025-44K are RoHS non-compliant. For applications subject to RoHS requirements, the 1025R-44K is the appropriate selection.

Q: Can these inductors be used interchangeably in high-frequency applications?

A: Yes. All substitute parts maintain identical Q factor (55 @ 7.9 MHz) and self-resonant frequency (50 MHz) specifications. Frequency response characteristics are equivalent across all listed alternatives.

Q: What packaging options are available for production?

A: The 1025-44K is supplied in cut tape (CT) for manual assembly. The 1025R-44K is supplied in bulk packaging. The ER1025 series (ER1025-44KM, ER1025-44KP, ER1025-44KR) is supplied in tape and reel (TR) format for automated assembly lines.