Bourns 5900-272 Equivalent & Substitute Parts

Part Overview

The Bourns 5900-272 is a 2.7 mH unshielded drum core wirewound inductor rated for 410 mA continuous current with a maximum DC resistance of 2.5 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 values in compact form factors.

The 5900-272 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

5900-272

Bourns Inc.In Stock: 9425900-272 Datasheet

Current PartRFQ

4590-275K

API Delevan Inc.In Stock: 9474590-275K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 5900-272 is determined by the following critical parameters:

• Inductance Value: Must match 2.7 mH at 1 kHz test frequency
• Inductance Tolerance: Must be ±10% or tighter
• Core Type and Shielding: Must be ferrite drum core, unshielded construction
• Mounting and Package: Must be through-hole axial configuration
• Physical Dimensions: Must be compatible with 0.453" diameter × 0.900" length envelope
• DC Resistance: Must not exceed 2.5 Ohm maximum
• Current Rating: Must support minimum 410 mA continuous operation
• Temperature Range: Must cover the operating window of -55°C to 105°C

The API Delevan 4590-275K meets these substitution criteria with compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 4590-275K is a direct functional substitute for the Bourns 5900-272. Both components share identical inductance values, tolerance specifications, core materials, and mounting configurations. The 4590-275K provides superior current handling capability at 560 mA versus the original 410 mA rating, and exhibits lower DC resistance at 2.13 Ohm maximum compared to 2.5 Ohm.

The 4590-275K maintains active product status, ensuring ongoing availability and supply chain support. Both components carry identical RoHS and REACH compliance classifications. The extended operating temperature range of the 4590-275K (-55°C to 125°C) provides additional thermal margin beyond the original specification (-55°C to 105°C).

Physical dimensions are equivalent within manufacturing tolerances, with axial length and diameter measurements matching the original component envelope.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 4590-275K be used as a direct replacement for the Bourns 5900-272?

A: Yes. Both inductors share the same 2.7 mH inductance value, ±10% tolerance, ferrite drum core construction, unshielded configuration, and through-hole axial mounting. Physical dimensions are compatible within standard manufacturing tolerances.

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

A: The 4590-275K provides higher current rating (560 mA vs. 410 mA), lower DC resistance (2.13 Ohm vs. 2.5 Ohm), and extended temperature range (-55°C to 125°C vs. -55°C to 105°C). The 4590-275K maintains active product status while the 5900-272 is obsolete.

Q: Are there any compliance or certification differences?

A: Both components carry identical RoHS non-compliant and REACH Unaffected classifications. No compliance advantage exists between the two parts.

Q: Will the 4590-275K fit in the same PCB footprint?

A: Yes. The axial package dimensions are equivalent. The 4590-275K diameter is 0.455" compared to 0.453" for the original, and both share 0.900" length. These differences fall within standard PCB hole tolerance specifications for through-hole components.

Q: Is the lower DC resistance of the 4590-275K beneficial?

A: Lower DC resistance reduces resistive losses and heat generation in the inductor. This characteristic is advantageous in applications where thermal performance and efficiency are design considerations.