Bourns 6726 Equivalent & Substitute Parts

Part Overview

The Bourns 6726 is a 25 µH shielded toroidal inductor rated for 2.5 A continuous current with a maximum DC resistance of 40 mOhm. This through-hole component features an iron powder core and operates across the temperature range of -55°C to 105°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations where this inductance value and current rating are required.

Substiute Parts

6726

Bourns Inc.In Stock: 8216726 Datasheet

Current PartRFQ

PT25-680

API Delevan Inc.In Stock: 928PT25-680 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 6726 is determined by the following critical parameters:

• Inductance Value: Must be 25 µH with ±15% tolerance
• Core Type: Iron powder construction required for equivalent magnetic characteristics
• Shielding: Shielded configuration mandatory
• Mounting: Through-hole radial/vertical orientation
• Inductance Test Frequency: 1 kHz measurement standard

The API Delevan PT25-680 qualifies as a substitute based on matching inductance (25 µH), tolerance (±15%), core material (iron powder), shielding (shielded), and mounting configuration (through-hole radial/vertical). While the PT25-680 provides higher current rating (4.4 A versus 2.5 A) and lower DCR (35 mOhm versus 40 mOhm), these represent performance improvements that maintain backward compatibility in applications designed for the 6726.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan PT25-680 is the qualified substitute for the Bourns 6726 based on electrical and mechanical parameter alignment. The PT25-680 maintains identical inductance and tolerance specifications while providing enhanced performance characteristics through higher current rating and reduced DC resistance. Both components share non-compliant RoHS status and REACH unaffected classification.

Selection of the PT25-680 is supported by its active product status, ensuring continued availability and supply chain stability compared to the obsolete 6726. The substitute's improved current handling and lower resistance characteristics present no compatibility concerns for applications originally specified for the 6726, as these represent performance enhancements within the same functional category.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan PT25-680 directly replace the Bourns 6726 in existing designs?

A: Yes. Both components share identical inductance (25 µH), tolerance (±15%), core material (iron powder), shielding, and through-hole mounting configuration. The PT25-680's higher current rating (4.4 A) and lower DCR (35 mOhm) represent performance improvements that maintain backward compatibility.

Q: What are the physical dimension differences between these parts?

A: The Bourns 6726 measures 0.550" L x 0.425" W with a maximum seated height of 1.000". The API Delevan PT25-680 has a 0.680" diameter with 0.370" width. Physical layout verification is required during PCB integration due to these dimensional variations.

Q: Are there compliance or certification differences between the two parts?

A: Both components are RoHS non-compliant and REACH unaffected. Both carry EAR99 ECCN classification and 8504.50.4000 HTSUS code. No compliance advantage exists between the two options.

Q: What inductance tolerance should be expected in circuit design?

A: Both the Bourns 6726 and API Delevan PT25-680 carry ±15% inductance tolerance, measured at 1 kHz. Circuit designs must account for this tolerance range in filter, matching, and impedance-critical applications.

Q: Is the PT25-680 available in the same packaging format?

A: Both components use through-hole radial/vertical mounting with open leads. The PT25-680 is supplied in bulk packaging, whereas the 6726 packaging format is not specified in available data. Packaging compatibility should be confirmed with your supplier.