Bourns 2118-H Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The Bourns 2118-H is a 330 µH unshielded toroidal inductor rated for 1.7 A with a maximum DC resistance of 230 mOhm. This through-hole component operates across the temperature range of -55°C to 105°C and is part of the 2100 series. The 2118-H carries an obsolete product status, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

2118-H

Bourns Inc.In Stock: 10352118-H Datasheet

Current PartRFQ

2118-H-RC

Bourns Inc.In Stock: 12392118-H-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2118-H is determined by strict equivalence across the following electrical and mechanical parameters:

• Inductance value: 330 µH
• Inductance tolerance: ±15%
• Current rating: 1.7 A
• DC resistance: 230 mOhm maximum
• Toroidal type with unshielded construction
• Through-hole mounting with radial, horizontal (open) package configuration
• Physical dimensions: 0.860" diameter, 0.450" maximum seated height
• Operating temperature range: -55°C to 105°C

The 2118-H-RC meets all these criteria and is classified as a direct manufacturer equivalent from Bourns Inc., differing only in packaging format (bulk versus standard) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The 2118-H-RC is the direct functional equivalent of the 2118-H. Both parts share identical electrical specifications (330 µH inductance, 1.7 A current rating, 230 mOhm DC resistance) and mechanical form factors (toroidal, through-hole, radial horizontal package, 0.860" diameter, 0.450" height).

The primary distinction is product lifecycle status: the 2118-H is obsolete, while the 2118-H-RC is active. Additionally, the 2118-H-RC carries ROHS3 compliance, whereas the 2118-H is RoHS non-compliant. Both parts maintain REACH Unaffected status and share the same ECCN and HTSUS classifications.

For new designs or ongoing procurement where the 2118-H is unavailable, the 2118-H-RC provides electrical and mechanical interchangeability with the added benefit of current product support and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the 2118-H-RC be used as a direct replacement for the 2118-H?

A: Yes. The 2118-H-RC is electrically and mechanically identical to the 2118-H. Both parts have the same inductance (330 µH), current rating (1.7 A), DC resistance (230 mOhm), toroidal unshielded construction, through-hole mounting, and physical dimensions. The 2118-H-RC is the active equivalent.

Q: What is the difference between the 2118-H and 2118-H-RC?

A: The parts are functionally equivalent. The differences are: (1) product status—2118-H is obsolete while 2118-H-RC is active; (2) RoHS compliance—2118-H-RC is ROHS3 compliant while 2118-H is non-compliant; (3) packaging format—2118-H-RC is supplied in bulk packaging.

Q: Are there any compatibility concerns when substituting the 2118-H with the 2118-H-RC?

A: No compatibility concerns exist. Both parts are identical in electrical performance and physical form factor. PCB footprints, circuit behavior, and thermal characteristics remain unchanged.

Q: Why should I transition from the 2118-H to the 2118-H-RC?

A: The 2118-H is obsolete and subject to availability constraints. The 2118-H-RC is an active product with ongoing manufacturer support, ensuring reliable procurement. Additionally, ROHS3 compliance of the 2118-H-RC aligns with current regulatory requirements in many markets.

Q: Do the 2118-H and 2118-H-RC have the same temperature operating range?

A: Yes. Both parts operate across -55°C to 105°C.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts have a 0.860" diameter (21.84 mm) and maximum seated height of 0.450" (11.43 mm), ensuring identical PCB layout compatibility.