Bourns 5618-RC Equivalent & Substitute Parts

Part Overview

The Bourns 5618-RC is a 2.5 mH unshielded drum core wirewound inductor rated for 1.6 A with a maximum DC resistance of 690 mOhm. This through-hole component features a radial, vertical cylinder package and operates across a temperature range of -55°C to 105°C. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and production continuity.

Substiute Parts

5618-RC

Bourns Inc.In Stock: 9895618-RC Datasheet

Current PartRFQ

1539M18

Hammond ManufacturingIn Stock: 9861539M18 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 5618-RC is determined by strict equivalence across the following parameters:

• Inductance value: 2.5 mH
• Inductance tolerance: ±10%
• Current rating: 1.6 A minimum
• DC resistance: 690 mOhm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded
• Mounting type: Through Hole
• Package configuration: Radial, Vertical Cylinder
• Physical dimensions: 1.220" Dia (30.99 mm); Height 1.110" (28.19 mm)
• Inductance test frequency: 1 kHz
• RoHS compliance: ROHS3 Compliant

Only components meeting all specified parameters are listed as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The Hammond 1539M18 is a direct electrical and mechanical equivalent to the Bourns 5618-RC. Both components are ROHS3 compliant and meet identical electrical specifications across inductance, current rating, and DC resistance parameters. The Hammond part maintains active product status, ensuring ongoing availability and supply chain continuity. Physical dimensions and mounting configurations are identical, permitting direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 1539M18 replace the Bourns 5618-RC in existing designs?

A: Yes. The Hammond 1539M18 meets all electrical and mechanical specifications of the Bourns 5618-RC, including inductance value, current rating, DC resistance, core material, shielding configuration, and physical dimensions. Direct substitution is permissible without circuit redesign.

Q: Are there differences in operating temperature ranges between these parts?

A: The Bourns 5618-RC specifies an operating temperature range of -55°C to 105°C. The Hammond 1539M18 operating temperature range is not provided in the available data. Verify Hammond specifications against application requirements before final selection.

Q: What is the significance of the ±10% inductance tolerance?

A: The ±10% tolerance indicates the maximum deviation of the actual inductance value from the nominal 2.5 mH specification. Both the Bourns and Hammond parts share this tolerance, ensuring equivalent performance in circuits where inductance precision is critical.

Q: Are both parts suitable for high-frequency applications?

A: Both components are tested at 1 kHz. Self-resonant frequency data is not provided for either part. Confirm frequency response characteristics against application requirements before deployment in high-frequency circuits.

Q: What packaging options are available?

A: The Bourns 5618-RC is supplied in standard packaging. The Hammond 1539M18 is supplied in bulk packaging. Both maintain identical component specifications and through-hole radial mounting configuration.