Bourns 9220-18 Equivalent & Substitute Parts

Part Overview

The Bourns 9220-18 is a 620 µH unshielded drum core wirewound inductor rated for 88 mA with 13Ohm maximum DC resistance. This component is designed for through-hole axial mounting applications requiring fixed inductance in the 620 µH range with tight tolerance specifications.

The 9220-18 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for legacy systems utilizing this inductor.

Substiute Parts

9220-18

Bourns Inc.In Stock: 7559220-18 Datasheet

Current PartRFQ

2500-18J

API Delevan Inc.In Stock: 9272500-18J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 9220-18 is determined by strict equivalence across the following critical parameters:

• Inductance Value: 620 µH (exact match required)
• Inductance Tolerance: ±5% (matching tolerance band)
• DC Resistance: 13Ohm maximum (electrical performance equivalence)
• Current Rating: Minimum 88 mA (equal or higher rating acceptable)
• Operating Temperature Range: -55°C ~ 105°C (full range coverage required)
• Mounting Type: Through Hole axial configuration
• Shielding Classification: Unshielded

The API Delevan 2500-18J meets all substitution criteria. While the core material differs (molded iron core versus drum core ferrite) and the current rating is higher (101 mA versus 88 mA), the electrical parameters—inductance, tolerance, DC resistance, self-resonant frequency, and operating temperature—remain equivalent. The higher current rating provides additional design margin without compromising circuit performance.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 2500-18J is the direct substitute for the Bourns 9220-18. Selection is based on the following factors:

Product Status: The 2500-18J carries active product status, ensuring ongoing availability and supply chain support. The 9220-18 is obsolete, making the 2500-18J the appropriate choice for new designs or continued production support.

Electrical Equivalence: Both inductors maintain identical inductance values (620 µH), tolerance specifications (±5%), DC resistance (13Ohm maximum), and operating temperature ranges (-55°C ~ 105°C). The 2500-18J's higher current rating (101 mA versus 88 mA) provides additional design margin without introducing circuit incompatibility.

Compliance: Both components share identical RoHS and REACH compliance classifications, ensuring regulatory consistency in applications where these certifications are required.

Physical Compatibility: Both components utilize through-hole axial mounting with equivalent package classifications, supporting direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 2500-18J be used as a direct replacement for the Bourns 9220-18?

A: Yes. Both inductors meet the critical electrical specifications: 620 µH inductance, ±5% tolerance, 13Ohm maximum DC resistance, and -55°C ~ 105°C operating temperature range. The 2500-18J's higher current rating (101 mA) is compatible with circuits designed for the 88 mA rated 9220-18.

Q: What is the difference in core material between these inductors?

A: The Bourns 9220-18 uses a ferrite drum core, while the API Delevan 2500-18J uses a molded iron core. Despite this material difference, both achieve equivalent electrical performance at the specified inductance value and frequency characteristics.

Q: Are there physical size differences between these parts?

A: Yes. The Bourns 9220-18 measures 0.190" diameter × 0.440" length (4.83mm × 11.18mm). The API Delevan 2500-18J measures 0.240" diameter × 0.740" length (6.10mm × 18.80mm). Both are through-hole axial components; board layout must accommodate the larger footprint of the 2500-18J.

Q: What is the packaging difference?

A: The Bourns 9220-18 packaging is listed as standard. The API Delevan 2500-18J is supplied in Tape & Reel (TR) format, which is standard for active production components and supports automated assembly processes.

Q: Are both inductors RoHS compliant?

A: No. Both the Bourns 9220-18 and API Delevan 2500-18J are RoHS non-compliant. If RoHS compliance is required for your application, alternative inductors meeting RoHS specifications must be evaluated separately.

Q: What frequency characteristics should I consider for substitution?

A: Both inductors share identical self-resonant frequency specifications (4.6 MHz). The Bourns 9220-18 is tested at 7.9 MHz with Q of 60, while the API Delevan 2500-18J is tested at 790 kHz with Q of 60. For applications operating within the specified frequency ranges, both inductors are equivalent.