Bourns 2109-V 47µH Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 2109-V is a 47 µH unshielded toroidal inductor rated for 3.6 A continuous current with a maximum DC resistance of 55 mOhm. This through-hole component operates across the temperature range of -55°C to 105°C and is part of the 2100 series inductor family. The 2109-V has reached obsolete product status, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

2109-V

Bourns Inc.In Stock: 7182109-V Datasheet

Current PartRFQ

2109-V-RC

Bourns Inc.In Stock: 13582109-V-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2109-V is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

• Inductance value: 47 µH
• Inductance tolerance: ±15%
• Current rating: 3.6 A minimum
• DC resistance: 55 mOhm maximum
• Inductor type: Toroidal
• Shielding configuration: Unshielded
• Mounting type: Through Hole
• Package / case style: Radial, Vertical (Open)
• Operating temperature range: -55°C to 105°C minimum
• Physical dimensions: 0.860" Dia × 0.450" W (21.84mm × 11.43mm)

Only parts meeting all these specifications are considered direct functional equivalents.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 2109-V-RC serves as the direct active equivalent to the obsolete 2109-V. Both parts are manufactured by Bourns Inc. within the 2100 series and maintain identical electrical specifications and physical form factors. The primary distinction is product lifecycle status: the 2109-V is obsolete while the 2109-V-RC is active.

The 2109-V-RC offers improved regulatory compliance, meeting ROHS3 requirements compared to the non-compliant status of the original 2109-V. For new designs or ongoing production requiring regulatory alignment, the 2109-V-RC is the appropriate selection. Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the 2109-V-RC be used as a direct replacement for the 2109-V?

A: Yes. The 2109-V-RC is electrically and mechanically identical to the 2109-V across all specified parameters, including inductance, current rating, DC resistance, temperature range, and physical dimensions. The primary difference is product status and RoHS compliance.

Q: What is the difference between the 2109-V and 2109-V-RC packaging?

A: The 2109-V packaging designation is listed as a dash (-), while the 2109-V-RC is supplied in Bulk packaging. Both parts use identical Radial, Vertical (Open) case styles and physical dimensions.

Q: Why is the 2109-V marked as obsolete?

A: The 2109-V has reached end-of-life status. The 2109-V-RC represents the active continuation within the Bourns 2100 series, offering the same electrical performance with current regulatory compliance.

Q: Are there any compliance differences between these parts?

A: The 2109-V-RC meets ROHS3 compliance requirements, while the 2109-V is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification.

Q: What are the critical parameters for substitution?

A: Substitution requires matching inductance (47 µH ±15%), current rating (3.6 A), DC resistance (55 mOhm max), toroidal unshielded type, through-hole mounting, radial vertical open package, operating temperature range (-55°C to 105°C), and physical dimensions (0.860" Dia × 0.450" W).