PM2120-100K Equivalent & Substitute Parts

Part Overview

The PM2120-100K is a 10 µH unshielded toroidal inductor manufactured by Bourns Inc., rated for 13.9 A continuous current with a maximum DC resistance of 7 mOhm. This component is designed for surface mount applications in power conversion and filtering circuits. The part is currently listed as obsolete, making identification of suitable substitutes essential for ongoing production support and design continuity.

Substiute Parts

PM2120-100K

Bourns Inc.In Stock: 877PM2120-100K Datasheet

Current PartRFQ

PM2120-100K-RC

Bourns Inc.In Stock: 722PM2120-100K-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM2120-100K is determined by strict equivalence across the following critical parameters:

• Inductance value: 10 µH
• Inductance tolerance: ±10%
• Current rating: 13.9 A minimum
• DC resistance: 7 mOhm maximum
• Core material: Iron
• Shielding configuration: Unshielded
• Inductor type: Toroidal
• Operating temperature range: -55°C to 105°C minimum
• Mounting type: Surface Mount
• Physical dimensions: 1.201" L x 1.000" W x 0.820" H (30.50mm x 25.40mm x 20.83mm)

The PM2120-100K-RC meets all substitution criteria as a direct equivalent from the same manufacturer series.

Parameter Comparison

Engineering Selection Recommendations

The PM2120-100K-RC is the direct substitute for the obsolete PM2120-100K. Both components are electrically and mechanically identical across all functional parameters. The primary distinction is product status and regulatory compliance: the PM2120-100K-RC is an active product with ROHS3 compliance, whereas the original part is obsolete and RoHS non-compliant. For new designs or production continuity, the PM2120-100K-RC is the appropriate selection. Both components share identical moisture sensitivity levels and export classifications, ensuring no change in supply chain or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can PM2120-100K-RC be used as a direct replacement for PM2120-100K?

A: Yes. Both components have identical electrical specifications (10 µH inductance, 13.9 A current rating, 7 mOhm DCR), core material (iron), shielding (unshielded), and physical dimensions (1.201" L x 1.000" W x 0.820" H). They are functionally interchangeable in all circuit applications.

Q: What is the difference between these two parts?

A: The PM2120-100K-RC is the active production equivalent. It carries ROHS3 compliance certification, whereas the PM2120-100K is obsolete and RoHS non-compliant. Electrical and mechanical performance are identical.

Q: Are there any packaging differences?

A: The PM2120-100K-RC is supplied in bulk packaging, while the original PM2120-100K uses standard packaging. Both use the same nonstandard case format and have identical physical dimensions.

Q: Does the substitute part require any circuit modifications?

A: No. The PM2120-100K-RC maintains full electrical and mechanical compatibility with the PM2120-100K across all specified parameters, including inductance value, tolerance, current rating, DC resistance, operating temperature range, and mounting configuration.

Q: Are there any compliance or regulatory considerations when switching to the substitute?

A: The PM2120-100K-RC offers improved regulatory status with ROHS3 compliance. Both parts maintain identical REACH and export classification status (EAR99), so no additional supply chain or documentation changes are required.