Equivalent & Substitute Parts for Bourns 5621-RC

Part Overview

The Bourns 5621-RC is a 250 µH unshielded drum core wirewound inductor rated for 6.4 A with a maximum DC resistance of 59 mOhm. This through-hole component features a radial, vertical cylinder package and operates across the temperature range of -55°C to 105°C. The 5621-RC is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

5621-RC

Bourns Inc.In Stock: 11715621-RC Datasheet

Current PartRFQ

1539M21

Hammond ManufacturingIn Stock: 11971539M21 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 5621-RC is based on strict equivalence across the following critical parameters:

• Inductance value: 250 µH
• Inductance tolerance: ±10%
• Current rating: 6.4 A
• DC resistance: 59 mOhm maximum
• Core material and shielding: Ferrite, unshielded
• Inductor construction: Wirewound drum core
• Mounting configuration: Through-hole radial, vertical cylinder
• Physical envelope: 1.500" diameter, 1.110" height maximum
• Inductance measurement frequency: 1 kHz
• Regulatory compliance: ROHS3 compliant

The Hammond Manufacturing 1539M21 meets all specified electrical and mechanical parameters, establishing it as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 1539M21 provides direct substitution for the obsolete Bourns 5621-RC. Both components are ROHS3 compliant and maintain identical electrical specifications and physical dimensions. The Hammond 1539M21 carries active product status, ensuring continued availability and supply chain support. Selection of the 1539M21 eliminates obsolescence risk while preserving circuit performance and PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 1539M21 be used as a direct replacement for the Bourns 5621-RC?

A: Yes. Both inductors share identical inductance (250 µH), current rating (6.4 A), DC resistance (59 mOhm maximum), core type (ferrite, unshielded), and physical dimensions (1.500" diameter, 1.110" height). Through-hole radial mounting is identical on both components.

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

A: The Bourns 5621-RC specifies an operating temperature range of -55°C to 105°C. Operating temperature data for the Hammond 1539M21 was not provided in the available specifications.

Q: Do both parts meet the same regulatory requirements?

A: Both the Bourns 5621-RC and Hammond 1539M21 are ROHS3 compliant and carry identical ECCN (EAR99) and HTSUS (8504.50.8000) classifications.

Q: What is the primary reason to transition from the Bourns 5621-RC to the Hammond 1539M21?

A: The Bourns 5621-RC is classified as obsolete. The Hammond 1539M21 maintains active product status, providing long-term supply chain availability and design continuity.

Q: Are the physical packages identical?

A: Yes. Both components use radial, vertical cylinder packaging with identical dimensions: 1.500" diameter and 1.110" maximum seated height.