Bourns 4628-RC 39µH Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 4628-RC is a 39 µH unshielded drum core wirewound inductor rated for 600 mA with a maximum DC resistance of 650 mOhm. This through-hole axial component operates across -55°C to 105°C and is designed for applications requiring fixed inductance in compact form factors. The 4628-RC is classified as obsolete, making identification of compatible substitute parts essential for ongoing production and maintenance applications.

Substiute Parts

4628-RC

Bourns Inc.In Stock: 10444628-RC Datasheet

Current PartRFQ

1532D

Hammond ManufacturingIn Stock: 10401532D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 4628-RC is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 39 µH
• Current rating: 600 mA minimum
• DC resistance: 650 mOhm maximum
• Shielding configuration: Unshielded
• Mounting type: Through hole
• Package type: Axial
• Physical dimensions: 0.290" Dia x 0.875" L

The Hammond Manufacturing 1532D meets all critical electrical specifications and physical dimensions required for direct substitution. Both components share identical inductance, current rating, DC resistance, and form factor, enabling functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 1532D serves as a direct functional equivalent to the obsolete Bourns 4628-RC. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for modern production environments. The Hammond 1532D is classified as active product status, ensuring continued availability and supply chain reliability.

The inductance tolerance difference (±5% for Bourns versus ±10% for Hammond) should be evaluated against circuit design margins. Applications requiring tighter tolerance control may necessitate additional circuit compensation or component selection procedures.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 1532D replace the Bourns 4628-RC in existing designs?

A: Yes. Both components share identical inductance values, current ratings, DC resistance specifications, and physical dimensions. The axial through-hole form factor and unshielded configuration are identical, enabling direct PCB substitution.

Q: What is the significance of the inductance tolerance difference?

A: The Bourns 4628-RC specifies ±5% tolerance while the Hammond 1532D specifies ±10% tolerance. Circuit designs with tight inductance requirements should account for this wider tolerance band in the Hammond part. Applications with broader design margins will experience no functional impact.

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

A: Both components are ROHS3 compliant and REACH unaffected. No regulatory barriers exist for substitution in applications subject to these standards.

Q: Does the self-resonant frequency difference affect substitution suitability?

A: The Bourns 4628-RC specifies 20 MHz self-resonant frequency while the Hammond 1532D specifies 200 kHz. This difference reflects measurement methodology or core material variations. For applications operating below these frequencies, both components function equivalently. Applications operating near or above the self-resonant frequency should be evaluated for specific performance requirements.

Q: What packaging considerations apply to the Hammond 1532D?

A: The Hammond 1532D is supplied in bulk packaging, whereas the Bourns 4628-RC packaging format is not specified. Verify bulk packaging compatibility with receiving and handling procedures for your production environment.