Bourns 5727 35µH Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5727 is a 35µH unshielded toroidal inductor rated for 2.5A continuous current with a maximum DC resistance of 35mOhm. This through-hole component features an iron powder core and operates across the temperature range of -55°C to 105°C. The 5727 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

5727

Bourns Inc.In Stock: 7425727 Datasheet

Current PartRFQ

5727-RC

Bourns Inc.In Stock: 8585727-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 5727-RC qualifies as a direct substitute for the 5727 based on the following critical parameters:

• Inductance value: 35 µH (identical)
• Inductance tolerance: ±15% (identical)
• Current rating: 2.5 A (identical)
• DC resistance: 35 mOhm maximum (identical)
• Core material: Iron Powder (identical)
• Shielding configuration: Unshielded (identical)
• Mounting type: Through Hole (identical)
• Package configuration: Radial, Vertical (Open) (identical)
• Operating temperature range: -55°C to 105°C (identical)
• Test frequency: 1 kHz (identical)

The 5727-RC maintains electrical and mechanical compatibility while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 5727-RC is the appropriate selection for applications currently specified with the 5727. The substitute part maintains identical electrical performance and mechanical compatibility across all critical parameters. The 5727-RC offers two significant advantages: active product status ensures long-term availability and supply chain continuity, and ROHS3 compliance satisfies modern regulatory requirements for electronic components in regulated markets. The packaging format difference (tray versus bulk) does not affect functional performance and reflects current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Are the 5727 and 5727-RC electrically interchangeable?

A: Yes. Both parts share identical inductance (35µH ±15%), current rating (2.5A), DC resistance (35mOhm max), core material (iron powder), and operating temperature range (-55°C to 105°C). They are direct electrical equivalents.

Q: What is the difference in physical dimensions between these parts?

A: The 5727 measures 0.875" diameter × 0.437" width (22.22mm × 11.10mm). The 5727-RC measures 0.700" diameter × 0.320" width (17.78mm × 8.13mm). Both maintain the same radial, vertical (open) mounting configuration. PCB layout verification is required if space constraints are critical.

Q: Why is the 5727 listed as obsolete?

A: The 5727 has been superseded by the 5727-RC in Bourns' active product portfolio. The 5727-RC provides equivalent performance with improved regulatory compliance and ongoing manufacturing support.

Q: Does the packaging format change affect component performance?

A: No. The change from bulk to tray packaging is a logistics and handling consideration only. Electrical and mechanical performance remain identical.

Q: Is the 5727-RC suitable for new designs?

A: Yes. The 5727-RC is the current active part number and is appropriate for both replacement applications and new designs requiring a 35µH, 2.5A toroidal inductor with iron powder core construction.

Q: What compliance certifications apply to the 5727-RC?

A: The 5727-RC is ROHS3 compliant and REACH unaffected. It carries ECCN classification EAR99 and HTSUS code 8504.50.4000.