Bourns 5900-104 Fixed Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5900-104 is a 100 mH unshielded drum core wirewound inductor rated for 70 mA continuous current with a maximum DC resistance of 82 Ohm. This through-hole axial component operates across the temperature range of -55°C to 105°C and is designed for applications requiring fixed inductance filtering and energy storage in electronic circuits.

The 5900-104 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this inductor specification.

Substiute Parts

5900-104

Bourns Inc.In Stock: 11105900-104 Datasheet

Current PartRFQ

4590-107K

API Delevan Inc.In Stock: 9924590-107K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 5900-104 is determined by the following critical parameters:

• Inductance Value: Must be 100 mH ±10%
• Core Type & Shielding: Ferrite drum core, unshielded construction
• Mounting & Package: Through-hole axial configuration
• Current Handling: Minimum 70 mA continuous rating
• DC Resistance: Maximum 82 Ohm to maintain circuit performance
• Temperature Range: Minimum -55°C to 105°C operational capability
• Test Frequency: 1 kHz inductance measurement standard

The API Delevan 4590-107K meets these substitution criteria with compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 4590-107K is a direct functional substitute for the obsolete Bourns 5900-104. Both components share identical inductance values, tolerance specifications, core materials, and mounting configurations. The 4590-107K provides enhanced performance characteristics: a higher current rating of 90 mA versus 70 mA, lower DC resistance of 76 Ohm versus 82 Ohm maximum, and an extended operating temperature range to 125°C.

The 4590-107K is classified as active product status, ensuring ongoing availability and supply chain support. Both components are RoHS non-compliant and REACH unaffected, with identical ECCN classification (EAR99). Physical dimensions are compatible within standard manufacturing tolerances.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 4590-107K directly replace the Bourns 5900-104 in existing designs?

A: Yes. Both inductors share the same 100 mH inductance value, ±10% tolerance, ferrite drum core construction, unshielded design, through-hole axial mounting, and 1 kHz test frequency. Physical dimensions are compatible within standard tolerances.

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

A: The 4590-107K provides higher current handling (90 mA vs. 70 mA), lower DC resistance (76 Ohm vs. 82 Ohm maximum), and an extended temperature range (-55°C to 125°C vs. -55°C to 105°C). These represent performance improvements over the original specification.

Q: Are there any compliance or certification differences?

A: Both components share identical RoHS status (non-compliant), REACH status (unaffected), and ECCN classification (EAR99). No compliance barriers exist for substitution.

Q: How do the physical dimensions compare?

A: The Bourns 5900-104 measures 0.453" diameter by 0.900" length (11.51mm x 22.86mm). The API Delevan 4590-107K measures 0.455" diameter by 0.900" length (11.55mm x 22.86mm). The 0.002" diameter difference is within standard manufacturing tolerances and does not affect board-level compatibility.

Q: What is the product availability status of each component?

A: The Bourns 5900-104 is obsolete. The API Delevan 4590-107K is active product status with 919 pieces in current inventory, ensuring supply chain continuity.