Bourns 5900-563 Equivalent & Substitute Parts

Part Overview

The Bourns 5900-563 is a 56 mH unshielded drum core wirewound inductor rated for 100 mA with a maximum DC resistance of 45 Ohm, designed for through-hole axial mounting. This component operates across a temperature range of -55°C to 105°C and is specified at 1 kHz inductance frequency testing.

The 5900-563 carries an obsolete product status. Identifying suitable substitute components is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

5900-563

Bourns Inc.In Stock: 9095900-563 Datasheet

Current PartRFQ

4590-566K

API Delevan Inc.In Stock: 7064590-566K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 5900-563 is determined by the following critical parameters:

Primary Substitution Criteria:

• Inductance value: 56 mH (exact match required)
• Inductance tolerance: ±10% (matching tolerance specification)
• Core type: Ferrite drum core, wirewound (same construction)
• Shielding: Unshielded (same configuration)
• Mounting type: Through hole axial (same mechanical interface)
• Package / case: Axial (same form factor)
• Inductance frequency test: 1 kHz (same measurement standard)

Secondary Compatibility Parameters:

• Current rating: Must meet or exceed 100 mA minimum requirement
• DC resistance: Must not exceed 45 Ohm maximum
• Operating temperature range: Must encompass or extend the -55°C to 105°C specification
• Physical dimensions: Must be compatible with 0.453" Dia x 0.900" L envelope

The API Delevan 4590-566K satisfies all primary substitution criteria and demonstrates improved performance characteristics in secondary parameters.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 4590-566K is a direct functional substitute for the obsolete Bourns 5900-563. Both components share identical inductance specifications, tolerance ratings, core construction, and mounting interfaces.

The 4590-566K demonstrates superior electrical performance with a 30 mA higher current rating (130 mA versus 100 mA) and reduced DC resistance (38 Ohm maximum versus 45 Ohm maximum). The extended operating temperature range (-55°C to 125°C versus -55°C to 105°C) provides additional thermal margin.

Physical dimensions are compatible within standard PCB assembly tolerances, with axial length maintained at 0.900" and diameter variance of 0.002" (11.55mm versus 11.51mm).

Both components maintain identical RoHS non-compliant and REACH unaffected regulatory status. The 4590-566K is currently in active production status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 4590-566K replace the Bourns 5900-563 in existing designs?

A: Yes. Both inductors share the same 56 mH inductance value, ±10% tolerance, ferrite drum core construction, unshielded configuration, and through-hole axial mounting. Physical dimensions are compatible within standard assembly tolerances.

Q: What are the key differences between these two inductors?

A: The 4590-566K provides improved electrical performance with higher current rating (130 mA versus 100 mA), lower DC resistance (38 Ohm versus 45 Ohm maximum), and extended operating temperature range (-55°C to 125°C versus -55°C to 105°C). The 4590-566K is in active production while the 5900-563 is obsolete.

Q: Are there any mechanical compatibility concerns?

A: Mechanical compatibility is maintained. The axial length is identical at 0.900". The diameter difference of 0.002" (11.55mm versus 11.51mm) is within standard PCB hole tolerances and does not affect mounting or electrical performance.

Q: Do these inductors have different regulatory compliance?

A: Both components share identical regulatory status: RoHS non-compliant and REACH unaffected. No compliance differences exist between the two parts.

Q: What is the saturation current difference and does it matter?

A: The 5900-563 has saturation current of 110 mA while the 4590-566K has 80 mA. For applications operating at or below 100 mA, the 4590-566K saturation specification remains adequate. Applications requiring operation above 100 mA should verify saturation performance requirements against the 80 mA specification.

Q: Is the lower DC resistance of the 4590-566K beneficial?

A: Yes. Lower DC resistance (38 Ohm versus 45 Ohm maximum) reduces resistive losses and heat generation, improving overall circuit efficiency and thermal performance.