Equivalent & Substitute Parts for Bourns 5611-RC 10µH Inductor

Part Overview

The Bourns 5611-RC is a 10 µH unshielded drum core wirewound inductor rated for 17 A continuous current with 6 mOhm maximum DC resistance. This through-hole radial component operates across -55°C to 105°C and is designed for applications requiring fixed inductance in compact form factors. The 5611-RC carries obsolete product status, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

5611-RC

Bourns Inc.In Stock: 12355611-RC Datasheet

Current PartRFQ

1140-100K-RC

Bourns Inc.In Stock: 9721140-100K-RC Datasheet

SimilarRFQ

1539M11

Hammond ManufacturingIn Stock: 8761539M11 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5611-RC is determined by matching the following critical parameters: inductance value (10 µH), tolerance (±10%), core material (ferrite), shielding configuration (unshielded), and mounting type (through hole). Current rating and DC resistance establish performance boundaries; substitute parts must meet or exceed the original specifications to ensure circuit functionality without derating.

Two substitute parts are identified:

Direct Equivalent (Hammond 1539M11): Matches all critical electrical and mechanical parameters including 17 A current rating, 6 mOhm DCR, and identical package geometry (1.220" diameter, 1.110" height). Provides pin-compatible replacement with active product status.

Enhanced Performance Alternative (Bourns 1140-100K-RC): Maintains identical inductance and tolerance but offers improved current handling (21.8 A vs. 17 A) and lower DC resistance (5 mOhm vs. 6 mOhm). Larger package footprint (1.500" diameter, 1.030" height) requires PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

Hammond 1539M11 is the primary substitute for direct replacement applications. This part maintains identical electrical specifications (10 µH, 17 A, 6 mOhm) and mechanical dimensions, ensuring compatibility with existing PCB layouts and circuit designs. Active product status and ROHS3 compliance support long-term supply chain continuity.

Bourns 1140-100K-RC serves applications where improved thermal performance or current margin is beneficial. The 21.8 A rating and 5 mOhm DCR provide design headroom for high-current or thermally constrained environments. The larger package footprint (1.500" diameter) requires PCB layout modification and must be evaluated for mechanical clearance constraints.

Both substitutes maintain ferrite core construction, unshielded configuration, and through-hole mounting, preserving circuit behavior and assembly compatibility with the original 5611-RC design.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 1539M11 replace the Bourns 5611-RC without PCB modification?

A: Yes. The 1539M11 matches the 5611-RC in all critical dimensions (1.220" diameter, 1.110" height) and electrical parameters (10 µH, 17 A, 6 mOhm). No PCB layout changes are required for direct substitution.

Q: What are the advantages of the Bourns 1140-100K-RC over the direct equivalent?

A: The 1140-100K-RC provides higher current capacity (21.8 A vs. 17 A) and lower DC resistance (5 mOhm vs. 6 mOhm), reducing power dissipation and thermal stress. These improvements benefit high-current applications or designs operating near current limits.

Q: Does the larger package size of the 1140-100K-RC affect circuit performance?

A: Package size does not affect electrical performance. The 1.500" diameter and 1.030" height require verification of available PCB space and mechanical clearance. Electrical characteristics remain equivalent to the original design.

Q: Are all three parts RoHS and REACH compliant?

A: Yes. The 5611-RC, 1539M11, and 1140-100K-RC are all ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for industrial and commercial applications.

Q: Which substitute should be selected for new designs?

A: For new designs, either active substitute is acceptable. Select the Hammond 1539M11 for space-constrained layouts requiring identical footprints. Select the Bourns 1140-100K-RC for applications benefiting from enhanced current capacity and lower resistance characteristics.