Bourns 2120-V 470µH Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 2120-V is a 470 µH unshielded toroidal inductor rated for 1.6 A with a maximum DC resistance of 280 mOhm. This through-hole component operates across the temperature range of -55°C to 105°C and is part of the 2100 series. The 2120-V has reached obsolete status, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

2120-V

Bourns Inc.In Stock: 8232120-V Datasheet

Current PartRFQ

2120-V-RC

Bourns Inc.In Stock: 11702120-V-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns 2120-V-RC serves as the direct active equivalent to the obsolete 2120-V. Substitution is valid based on the following criteria:

• Identical inductance value: 470 µH
• Identical inductance tolerance: ±15%
• Identical current rating: 1.6 A
• Identical DC resistance specification: 280 mOhm Max
• Identical shielding configuration: Unshielded
• Identical core type: Toroidal
• Identical mounting type: Through Hole
• Identical package / case style: Radial, Vertical (Open)
• Identical physical dimensions: 0.860" Dia x 0.450" W (21.84mm x 11.43mm)
• Identical operating temperature range: -55°C ~ 105°C
• Identical inductance test frequency: 1 kHz

The 2120-V-RC differs only in packaging format (Bulk vs. standard) and product status (Active vs. Obsolete), with improved RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The 2120-V-RC is the appropriate selection for new designs and procurement activities. As an active product from the same manufacturer and series, it provides full electrical and mechanical compatibility with the obsolete 2120-V. The 2120-V-RC offers the additional advantage of ROHS3 compliance, meeting current environmental and regulatory requirements. Both parts maintain identical electrical performance across all specified parameters, ensuring direct substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the 2120-V-RC be used as a direct replacement for the 2120-V in existing designs?

A: Yes. The 2120-V-RC is electrically and mechanically identical to the 2120-V across all functional parameters, including inductance, current rating, DC resistance, and physical dimensions. Direct substitution is valid.

Q: What is the difference between the 2120-V and 2120-V-RC?

A: The primary differences are product status and compliance. The 2120-V is obsolete and RoHS non-compliant, while the 2120-V-RC is an active product with ROHS3 compliance. Packaging format also differs (standard vs. bulk). All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns with the through-hole mounting?

A: No. Both parts use identical through-hole mounting with radial, vertical (open) package configuration and matching physical dimensions of 0.860" Dia x 0.450" W (21.84mm x 11.43mm). PCB footprints and assembly processes remain unchanged.

Q: Does the inductance tolerance affect substitution?

A: No. Both parts share the same ±15% inductance tolerance specification at 1 kHz test frequency. Circuit designs accounting for this tolerance range will function identically with either part.

Q: What is the significance of the ROHS3 compliance difference?

A: ROHS3 compliance indicates the 2120-V-RC meets current environmental regulations for restricted substances. For applications subject to regulatory requirements or customer specifications mandating RoHS compliance, the 2120-V-RC is the required selection.