Bourns 5517-RC Equivalent & Substitute Parts

Part Overview

The Bourns 5517-RC is a 27 µH unshielded drum core wirewound inductor rated for 12.5 A with a maximum DC resistance of 14 mOhm. This through-hole component is designed for radial, horizontal cylinder mounting in applications requiring fixed inductance values with moderate current handling capability. The 5517-RC is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

5517-RC

Bourns Inc.In Stock: 8055517-RC Datasheet

Current PartRFQ

1538M17

Hammond ManufacturingIn Stock: 12021538M17 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 5517-RC is determined by the following critical parameters:

• Inductance Value: 27 µH (exact match required)
• Current Rating: 12.5 A minimum
• DC Resistance: 14 mOhm maximum
• Mounting Configuration: Through-hole, radial, horizontal cylinder orientation
• Physical Dimensions: 0.940" Dia x 1.120" L (23.88mm x 28.45mm)
• Shielding Type: Unshielded
• Inductance Measurement Frequency: 1 kHz

The Hammond Manufacturing 1538M17 meets all substitution criteria within the allowed electrical and mechanical parameters for this inductor category.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 1538M17 is a direct functional equivalent to the Bourns 5517-RC. Both components meet ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing environments. The 1538M17 offers the additional advantage of active product status with confirmed inventory availability, addressing the obsolescence of the original 5517-RC. The tighter tolerance specification (±10% versus ±20%) of the 1538M17 provides improved inductance accuracy without compromising any electrical or mechanical requirements. Physical footprint and mounting characteristics are identical, permitting direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 1538M17 be used as a direct replacement for the Bourns 5517-RC?

A: Yes. The 1538M17 matches all critical electrical parameters (27 µH inductance, 12.5 A current rating, 14 mOhm maximum DC resistance) and physical dimensions (0.940" Dia x 1.120" L). Through-hole radial mounting orientation is identical. No circuit redesign or board layout modification is required.

Q: What is the difference in tolerance between these parts?

A: The Bourns 5517-RC specifies ±20% inductance tolerance, while the Hammond 1538M17 specifies ±10%. The tighter tolerance of the 1538M17 provides improved inductance accuracy and is fully compatible with applications designed for the original part.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both the Bourns 5517-RC and Hammond 1538M17 are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations.

Q: Why is the Bourns 5517-RC listed as obsolete?

A: The 5517-RC is classified as obsolete by the manufacturer. The Hammond 1538M17 maintains active product status with ongoing manufacturing and supply chain support.

Q: Are the physical dimensions identical?

A: Yes. Both components share identical dimensions of 0.940" diameter by 1.120" length (23.88mm x 28.45mm) and use the same radial, horizontal cylinder package configuration.

Q: What inductance test frequency applies to both parts?

A: Both components are specified at 1 kHz inductance measurement frequency, ensuring consistent performance characterization across equivalent parts.