Bourns 5716 125µH Toroidal Inductor - Equivalent & Substitute Parts

Part Overview

The Bourns 5716 is a 125µH unshielded toroidal inductor rated for 7.75A continuous current with a maximum DC resistance of 32mOhm. This through-hole component features an iron powder core and operates across the industrial temperature range of -55°C to 105°C. The 5716 is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications. The 5716-RC variant provides a direct functional equivalent with improved product status and compliance profile.

Substiute Parts

5716

Bourns Inc.In Stock: 9885716 Datasheet

Current PartRFQ

5716-RC

Bourns Inc.In Stock: 12655716-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns 5716-RC qualifies as a direct substitute based on the following criteria:

Electrical Parameters Match:

• Inductance: 125 µH (identical)
• Current Rating: 7.75 A (identical)
• DC Resistance: 32 mOhm Max (identical)
• Tolerance: ±15% (identical)
• Core Material: Iron Powder (identical)
• Shielding: Unshielded (identical)
• Operating Temperature: -55°C to 105°C (identical)

Mechanical Compatibility:

• Mounting Type: Through Hole (identical)
• Package/Case: Radial, Vertical (Open) (identical)

Substitution Logic: The 5716-RC maintains all critical electrical and mechanical parameters required for direct substitution. The primary differences are packaging format (Bulk vs. standard) and physical dimensions, which do not affect electrical performance or circuit functionality. The substitute part operates identically within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 5716-RC

The 5716-RC is the preferred substitute for the obsolete 5716. Selection rationale:

• Product Status: The 5716-RC is active and in production, ensuring long-term availability and supply chain stability.
• Compliance: The 5716-RC meets ROHS3 compliance requirements, whereas the original 5716 is non-compliant. This is critical for applications subject to RoHS regulations.
• Electrical Equivalence: All functional parameters are identical, ensuring drop-in compatibility without circuit redesign.
• Inventory: The 5716-RC maintains higher stock levels (1249 pcs vs. 959 pcs), supporting production continuity.

Application Considerations:

Use the 5716-RC for new designs and production runs. For legacy systems currently using the 5716, the 5716-RC provides a direct replacement without modification to PCB layout or circuit topology.

Frequently Asked Questions (FAQ)

Q: Can the 5716-RC be used as a direct replacement for the 5716 without circuit modification?

A: Yes. The 5716-RC maintains identical electrical specifications (125µH, 7.75A, 32mOhm DCR) and mechanical mounting (through-hole, radial vertical). No circuit redesign is required.

Q: What is the primary reason to transition from the 5716 to the 5716-RC?

A: The 5716 is obsolete with no active production. The 5716-RC is an active part with ROHS3 compliance, ensuring regulatory compliance and supply chain continuity.

Q: Are there physical dimension differences between the 5716 and 5716-RC?

A: Yes. The 5716 measures 0.875" Dia x 0.437" W (22.22mm x 11.10mm), while the 5716-RC measures 1.812" Dia x 0.750" W (46.02mm x 19.05mm). Both use radial, vertical (open) mounting. PCB layout must accommodate the larger footprint of the 5716-RC.

Q: Does the 5716-RC meet RoHS requirements?

A: Yes. The 5716-RC is ROHS3 compliant. The original 5716 is RoHS non-compliant and should not be used in applications requiring RoHS certification.

Q: What packaging formats are available?

A: The 5716 is supplied in standard packaging. The 5716-RC is supplied in bulk packaging. Both contain the same electrical component; packaging format does not affect performance.

Q: Are both parts rated for the same temperature range?

A: Yes. Both the 5716 and 5716-RC operate from -55°C to 105°C, supporting industrial and extended temperature applications.