Bourns 5726 25µH Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5726 is a 25µH unshielded toroidal inductor rated for 2.5A continuous current with a maximum DC resistance of 40mOhm. This through-hole component features an iron powder core and operates across the temperature range of -55°C to 105°C. The 5726 is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The 5726-RC variant provides an active production alternative with identical electrical specifications.

Substiute Parts

5726
Bourns Inc.In Stock: 8975726 Datasheet
5726
Current Part
5726-RC
Bourns Inc.In Stock: 10075726-RC Datasheet
5726-RC
Direct

Key Parameters

Parameter Value
Inductance 25 µH
Inductance Tolerance ±15%
Current Rating 2.5 A
DC Resistance (Max) 40 mOhm
Core Material Iron Powder
Shielding Unshielded
Mounting Type Through Hole
Package Type Radial, Vertical (Open)
Operating Temperature Range -55°C to 105°C
Inductance Test Frequency 1 kHz

Substitute Part Grouping Explanation

The Bourns 5726-RC qualifies as a direct functional substitute based on matching electrical and mechanical parameters. Substitution eligibility is determined by the following criteria:

  • Inductance value and tolerance (25µH ±15%)
  • Current rating (2.5A minimum)
  • DC resistance specification (40mOhm maximum)
  • Core material type (Iron Powder)
  • Shielding configuration (Unshielded)
  • Mounting method (Through Hole)
  • Operating temperature range (-55°C to 105°C)
  • Package configuration (Radial, Vertical Open)

The 5726-RC maintains all critical electrical parameters while offering improved product status (Active vs. Obsolete) and enhanced compliance certification.

Parameter Comparison

Parameter Bourns 5726 Bourns 5726-RC
Inductance 25 µH 25 µH
Inductance Tolerance ±15% ±15%
Current Rating 2.5 A 2.5 A
DC Resistance (Max) 40 mOhm 40 mOhm
Core Material Iron Powder Iron Powder
Shielding Unshielded Unshielded
Mounting Type Through Hole Through Hole
Package Type Radial, Vertical (Open) Radial, Vertical (Open)
Operating Temperature -55°C to 105°C -55°C to 105°C
Inductance Test Frequency 1 kHz 1 kHz
Product Status Obsolete Active
RoHS Compliance Non-compliant ROHS3 Compliant

Engineering Selection Recommendations

The Bourns 5726-RC is the direct equivalent for the obsolete 5726 model. Selection of the 5726-RC is supported by:

  • Identical electrical performance across all specified parameters
  • Active product status ensuring continued availability and supply chain stability
  • ROHS3 compliance certification, meeting current environmental and regulatory requirements
  • Equivalent mechanical form factor and through-hole mounting compatibility

For applications requiring RoHS compliance or long-term production support, the 5726-RC is the appropriate selection. Both parts maintain identical functional characteristics for circuit-level substitution.

Frequently Asked Questions (FAQ)

Q: Can the 5726-RC be used as a direct replacement for the 5726?

A: Yes. The 5726-RC provides identical electrical specifications including inductance value, current rating, DC resistance, and operating temperature range. Both components feature the same core material, shielding configuration, and through-hole mounting method.

Q: What is the primary difference between these two parts?

A: The 5726 is classified as obsolete with RoHS non-compliant status, while the 5726-RC is an active product with ROHS3 compliance certification. Electrical and mechanical parameters are equivalent.

Q: Are there physical dimension differences between the 5726 and 5726-RC?

A: Yes. The 5726 measures 0.875" diameter × 0.437" width (22.22mm × 11.10mm), while the 5726-RC measures 0.550" diameter × 0.220" width (13.97mm × 5.59mm). Both maintain the same radial, vertical open package configuration and through-hole mounting compatibility. PCB layout verification is required when substituting due to dimensional differences.

Q: Which part should be specified for new designs?

A: The 5726-RC should be specified for new designs. It provides active product status, improved compliance certification, and equivalent electrical performance.

Q: Are there packaging differences?

A: The 5726 is supplied in standard packaging, while the 5726-RC is supplied in bulk packaging. Both are through-hole components suitable for automated and manual assembly processes.

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