Equivalent & Substitute Parts for 5617-RC

Part Overview

The Bourns 5617-RC is a 1 mH unshielded drum core wirewound inductor rated for 2.5 A continuous current with a maximum DC resistance of 279 mOhm. This through-hole radial component operates across the temperature range of -55°C to 105°C and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active product lines are necessary to maintain design continuity and ensure ongoing component availability for new production and field replacements.

Substiute Parts

5617-RC

Bourns Inc.In Stock: 8605617-RC Datasheet

Current PartRFQ

1140-102K-RC

Bourns Inc.In Stock: 26571140-102K-RC Datasheet

SimilarRFQ

1539M17

Hammond ManufacturingIn Stock: 7221539M17 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5617-RC is determined by the following critical parameters: inductance value (1 mH), core material (ferrite), shielding configuration (unshielded), mounting type (through hole), and tolerance (±10%). The current rating and DC resistance establish the thermal and electrical performance envelope within which substitutes must operate.

Two substitute parts are identified:

Direct Equivalent (1539M17): Maintains identical inductance, current rating, DC resistance, package configuration, and physical dimensions. Manufactured by Hammond Manufacturing and currently active in production.

Functional Equivalent (1140-102K-RC): Maintains identical inductance, core material, shielding, and mounting type. Offers improved current rating (3.6 A versus 2.5 A) and lower DC resistance (216 mOhm versus 279 mOhm), with different physical dimensions. Manufactured by Bourns Inc. and currently active in production.

Parameter Comparison

Engineering Selection Recommendations

1539M17 (Hammond Manufacturing): This part provides a direct substitution path for the obsolete 5617-RC. It maintains identical electrical specifications (1 mH inductance, 2.5 A current rating, 279 mOhm DC resistance) and physical dimensions (1.220" diameter, 1.110" height). Both parts are ROHS3 compliant and REACH unaffected. The 1539M17 is currently in active production status, ensuring long-term availability. This substitute is appropriate for applications requiring exact form-factor compatibility and identical electrical performance.

1140-102K-RC (Bourns Inc.): This part offers functional equivalence with enhanced electrical performance. It maintains the same inductance value, core material, and shielding configuration as the 5617-RC. The 1140-102K-RC provides a higher current rating (3.6 A) and lower DC resistance (216 mOhm), resulting in reduced thermal dissipation and improved current-handling capability. Physical dimensions differ (1.500" diameter, 1.030" height), requiring PCB layout verification. Both parts are ROHS3 compliant and REACH unaffected. This substitute is appropriate for applications where improved thermal performance is beneficial and PCB space permits the larger diameter.

Both substitutes are manufactured by established component suppliers with active product status and full regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the 1539M17 be used as a direct replacement for the 5617-RC?

A: Yes. The 1539M17 maintains identical inductance (1 mH), current rating (2.5 A), DC resistance (279 mOhm), and physical dimensions (1.220" diameter, 1.110" height). No circuit modifications or PCB layout changes are required.

Q: What are the advantages of using the 1140-102K-RC instead of the 1539M17?

A: The 1140-102K-RC offers improved electrical performance with a higher current rating (3.6 A versus 2.5 A) and lower DC resistance (216 mOhm versus 279 mOhm). This results in reduced power dissipation and better thermal characteristics. However, it has a larger diameter (1.500" versus 1.220"), which requires PCB layout verification.

Q: Are there any physical compatibility concerns when substituting the 1140-102K-RC?

A: Yes. The 1140-102K-RC has a larger diameter (1.500" versus 1.220") and different height (1.030" versus 1.110"). PCB hole spacing and component clearance must be verified before implementation.

Q: Do all three parts meet the same regulatory requirements?

A: Yes. The 5617-RC, 1539M17, and 1140-102K-RC are all ROHS3 compliant and REACH unaffected.

Q: What is the operating temperature range for the 1539M17?

A: The operating temperature range for the 1539M17 is not specified in the available data. The 5617-RC and 1140-102K-RC both operate across -55°C to 105°C.

Q: Which substitute should be selected for a new design?

A: For new designs, either substitute is acceptable based on application requirements. Select the 1539M17 for exact form-factor compatibility with existing designs. Select the 1140-102K-RC if improved thermal performance and higher current capacity are beneficial and PCB layout permits the larger package size.