Equivalent & Substitute Parts for Bourns 5503-RC

Part Overview

The Bourns 5503-RC is a 27 µH unshielded drum core wirewound inductor rated for 7 A with a maximum DC resistance of 30 mOhm. This through-hole component is designed for radial, horizontal cylinder mounting. The 5503-RC is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

5503-RC

Bourns Inc.In Stock: 7635503-RC Datasheet

Current PartRFQ

1538M03

Hammond ManufacturingIn Stock: 7911538M03 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 5503-RC is determined by strict equivalence across the following electrical and mechanical parameters:

• Inductance value: 27 µH
• Current rating: 7 A minimum
• DC resistance: 30 mOhm maximum
• Shielding configuration: Unshielded
• Mounting type: Through hole
• Physical package: Radial, horizontal cylinder
• Physical dimensions: 0.810" Dia x 0.880" L (20.57mm x 22.35mm)
• Inductance test frequency: 1 kHz

The Hammond Manufacturing 1538M03 meets all specified electrical and mechanical requirements for direct substitution with the Bourns 5503-RC.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 1538M03 is a direct electrical and mechanical equivalent to the Bourns 5503-RC. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The Hammond 1538M03 carries active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete Bourns 5503-RC. The Hammond substitute offers improved inductance tolerance (±10% versus ±20%), providing tighter performance specifications for applications requiring enhanced precision.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 1538M03 be used as a direct replacement for the Bourns 5503-RC?

A: Yes. Both components share identical electrical specifications (27 µH inductance, 7 A current rating, 30 mOhm maximum DC resistance) and mechanical dimensions (0.810" Dia x 0.880" L). Physical footprint and through-hole mounting are identical, enabling direct PCB substitution.

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

A: The Bourns 5503-RC specifies ±20% tolerance, while the Hammond 1538M03 specifies ±10% tolerance. The Hammond part provides tighter inductance accuracy for applications requiring more precise component performance.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the Bourns 5503-RC and Hammond 1538M03 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the Bourns 5503-RC listed as obsolete?

A: The Bourns 5503-RC is classified as obsolete by the manufacturer. The Hammond 1538M03 maintains active product status, providing a viable alternative for new designs and ongoing production requirements.

Q: Are there any physical or mounting differences between these inductors?

A: No. Both components use identical radial, horizontal cylinder packaging with through-hole mounting. Physical dimensions are 0.810" Dia x 0.880" L (20.57mm x 22.35mm), ensuring compatibility with existing PCB layouts.