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

Part Overview

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

Substiute Parts

2120-H

Bourns Inc.In Stock: 11482120-H Datasheet

Current PartRFQ

2120-H-RC

Bourns Inc.In Stock: 8862120-H-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 2120-H is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for inductance value (470µH), inductance tolerance (±15%), current rating (1.6A), DC resistance (280mOhm maximum), core type (toroidal, unshielded), mounting configuration (through-hole, radial horizontal), physical dimensions (0.860" diameter, 0.450" maximum height), and operating temperature range (-55°C to 105°C).

The 2120-H-RC qualifies as a direct substitute based on complete parameter alignment across all electrical characteristics and mechanical form factor. The primary distinction between these parts is product status and packaging configuration, not functional performance.

Parameter Comparison

Engineering Selection Recommendations

The 2120-H-RC is the direct functional equivalent of the obsolete 2120-H. Both parts share identical electrical performance and mechanical specifications. Selection between these parts should be based on procurement requirements and regulatory compliance needs.

The 2120-H-RC offers the advantage of active product status, ensuring continued availability and manufacturing support. Additionally, the 2120-H-RC meets ROHS3 compliance requirements, whereas the original 2120-H is non-compliant. For new designs or systems requiring regulatory compliance, the 2120-H-RC is the appropriate selection. For legacy system maintenance where RoHS compliance is not mandated, either part provides equivalent electrical and mechanical performance.

Frequently Asked Questions (FAQ)

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

A: Yes. The 2120-H-RC maintains identical inductance (470µH ±15%), current rating (1.6A), DC resistance (280mOhm maximum), physical dimensions (0.860" diameter, 0.450" height), and operating temperature range (-55°C to 105°C). No circuit modifications are required for substitution.

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

A: The primary differences are product status and packaging. The 2120-H is obsolete with standard packaging, while the 2120-H-RC is an active product supplied in bulk packaging. The 2120-H-RC also meets ROHS3 compliance, whereas the 2120-H does not.

Q: Are there any mechanical compatibility concerns when substituting the 2120-H-RC for the 2120-H?

A: No. Both parts are toroidal inductors with identical radial, horizontal (open) mounting configuration and matching physical dimensions. PCB footprint and mounting hole spacing remain unchanged.

Q: Does the packaging difference between standard and bulk affect component performance?

A: No. Packaging configuration does not affect electrical or mechanical performance. The difference is in quantity per container and handling during distribution.

Q: Which part should be selected for new designs?

A: The 2120-H-RC should be selected for new designs. It is an active product with current manufacturing support and meets modern regulatory compliance standards (ROHS3).