Equivalent & Substitute Parts for Bourns 5520-RC

Part Overview

The Bourns 5520-RC is a 100 µH unshielded drum core wirewound inductor rated for 10 A continuous current with a maximum DC resistance of 27 mOhm. This through-hole component operates across the temperature range of -55°C to 105°C and is designed for radial, horizontal cylinder mounting. The 5520-RC carries an obsolete product status, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

5520-RC

Bourns Inc.In Stock: 8015520-RC Datasheet

Current PartRFQ

1538M20

Hammond ManufacturingIn Stock: 11261538M20 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 5520-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 100 µH
• Current rating: 10 A minimum
• DC resistance: 27 mOhm maximum
• Shielding configuration: Unshielded
• Mounting type: Through hole
• Physical package: Radial, horizontal cylinder with matching dimensions (0.940" Dia x 1.620" L)
• Inductance measurement frequency: 1 kHz

The Hammond Manufacturing 1538M20 meets all substitution criteria. Tolerance variation (±10% versus ±20%) represents an improvement in specification tightness and does not preclude substitution. Both parts maintain ROHS3 compliance and REACH unaffected status.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 1538M20 is a direct functional substitute for the obsolete Bourns 5520-RC. Both components maintain identical electrical specifications for inductance, current rating, and DC resistance. The Hammond part carries active product status, ensuring long-term availability and supply chain continuity. Both parts satisfy ROHS3 compliance and REACH unaffected requirements. The tighter tolerance specification of the Hammond part (±10% versus ±20%) provides improved performance margin without introducing compatibility concerns. Physical dimensions and mounting characteristics are identical, permitting direct board-level substitution without layout modification.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 1538M20 replace the Bourns 5520-RC in existing designs?

A: Yes. The Hammond 1538M20 meets all electrical and mechanical specifications of the Bourns 5520-RC. Identical inductance, current rating, DC resistance, physical dimensions, and mounting type permit direct substitution without circuit redesign or board layout changes.

Q: What is the significance of the tolerance difference between ±20% and ±10%?

A: The Hammond part specifies a tighter tolerance band (±10%) compared to the Bourns part (±20%). This represents improved manufacturing precision and does not create substitution barriers. Circuits designed for the ±20% tolerance will operate within specification with the ±10% part.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both the Bourns 5520-RC and Hammond 1538M20 carry identical ROHS3 compliance and REACH unaffected status. No additional regulatory considerations apply to substitution.

Q: Why is the Bourns 5520-RC listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The Hammond 1538M20 maintains active product status, providing a viable path for continued procurement and design support.

Q: Are the physical dimensions truly identical?

A: Yes. Both parts measure 0.940" diameter by 1.620" length (23.88mm x 41.15mm) in radial, horizontal cylinder configuration. PCB footprints and mounting hole spacing are identical.