Bourns 5706 25µH Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5706 is a 25µH unshielded toroidal inductor rated for 9A continuous current with a maximum DC resistance of 12mOhm. This through-hole component features an iron powder core and operates across the temperature range of -55°C to 105°C. The 5706 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

5706

Bourns Inc.In Stock: 8535706 Datasheet

Current PartRFQ

5706-RC

Bourns Inc.In Stock: 9375706-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 5706 is determined by strict equivalence across the following electrical and mechanical parameters:

• Inductance value: 25 µH with ±15% tolerance
• Current rating: 9 A minimum
• DC resistance: 12 mOhm maximum
• Core material: Iron powder
• Shielding configuration: Unshielded
• Mounting type: Through hole
• Package configuration: Radial, vertical (open)
• Operating temperature range: -55°C to 105°C

The 5706-RC meets all these criteria and qualifies as a direct substitute. The primary distinction between these parts is product status and packaging format, with the 5706-RC being an active production part supplied in tray packaging.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 5706-RC is the direct functional equivalent to the obsolete 5706. All electrical specifications and mechanical parameters are identical. Selection of the 5706-RC is appropriate for new designs and replacement applications requiring the same inductance, current handling, and thermal characteristics.

The 5706-RC offers the additional advantage of active product status, ensuring continued availability and supply chain reliability. The component is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Packaging differences between the two parts (bulk versus tray) do not affect electrical or mechanical performance and represent only a logistical distinction for procurement and assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the 5706-RC be used as a direct replacement for the 5706 in existing designs?

A: Yes. The 5706-RC is electrically and mechanically identical to the 5706 across all specified parameters. The component can be substituted without circuit redesign or performance impact.

Q: What is the significance of the product status difference between these parts?

A: The 5706 is classified as obsolete, meaning Bourns has discontinued active production. The 5706-RC is an active production part, ensuring long-term availability and supply continuity for procurement.

Q: Does the packaging format difference affect component performance?

A: No. The packaging format (bulk versus tray) is a logistical consideration only and does not alter electrical characteristics, thermal performance, or mechanical fit.

Q: Why is the RoHS status different between the two parts?

A: The 5706-RC incorporates current manufacturing practices and materials that comply with ROHS3 regulations. The 5706, being an older design, predates these compliance requirements. For applications subject to RoHS regulations, the 5706-RC is the appropriate selection.

Q: Are there any dimensional differences between the 5706 and 5706-RC?

A: Yes. The 5706 has a diameter of 0.875" (22.22mm) with a width of 0.437" (11.10mm). The 5706-RC has a diameter of 1.125" (28.58mm) with a width of 0.562" (14.27mm). Physical space constraints in the application must be evaluated before substitution.

Q: What parameters must remain constant for substitution eligibility?

A: Inductance value, current rating, DC resistance, core material, shielding configuration, mounting type, package style, and operating temperature range must all match exactly. Any deviation in these parameters disqualifies a part as a direct substitute.