PM518S-100-RC Equivalent & Substitute Parts

Part Overview

The PM518S-100-RC is a 10 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1.1 A continuous current with a maximum DC resistance of 130 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 718 pieces available in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

PM518S-100-RC

Bourns Inc.In Stock: 786PM518S-100-RC Datasheet

Current PartRFQ

SRR5018-100Y

Bourns Inc.In Stock: 22940SRR5018-100Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM518S-100-RC is determined by strict alignment of the following critical parameters:

Inductance value of 10 µH with ±30% tolerance ensures functional equivalence in circuit operation. Current rating of 1.1 A and saturation current of 1.25 A must be maintained to prevent thermal stress and core saturation. DC resistance of 130 mOhm maximum preserves power dissipation characteristics. Shielded drum core construction with ferrite material is required to maintain electromagnetic isolation and frequency response. Surface mount packaging with nonstandard case dimensions (5.80mm x 5.80mm footprint, 2.00mm maximum height) ensures mechanical compatibility with PCB layouts. Operating temperature range of -40°C to 125°C and ROHS3 compliance are mandatory for regulatory and environmental requirements.

The SRR5018-100Y meets all substitution criteria through identical electrical specifications, core construction, shielding configuration, and mechanical dimensions, with equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both PM518S-100-RC and SRR5018-100Y are active production components from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability: PM518S-100-RC has 718 pieces in stock, while SRR5018-100Y has 22,900 pieces available. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The SRR5018-100Y offers superior supply chain availability for high-volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can SRR5018-100Y replace PM518S-100-RC in existing designs?

A: Yes. Both parts share identical inductance (10 µH), current ratings (1.1 A), DC resistance (130 mOhm max), core construction (shielded ferrite drum core), and mechanical dimensions (5.80mm x 5.80mm footprint, 2.00mm height). PCB layout and schematic integration require no modification.

Q: Are there differences in compliance or environmental ratings?

A: No. Both components are ROHS3 compliant, REACH unaffected, and rated for -40°C to 125°C operation with MSL 1 (unlimited moisture sensitivity level).

Q: What determines substitution eligibility for this inductor category?

A: Substitution requires matching inductance value, tolerance, current rating, saturation current, DC resistance, shielding configuration, core material, surface mount package type, and mechanical dimensions. Compliance certifications and operating temperature range must also align.

Q: Does the series designation (PM518S vs. SRR5018) affect compatibility?

A: No. Series designation identifies the product line within the manufacturer's portfolio. Substitution is determined by electrical specifications and mechanical compatibility, not series naming.

Q: What is the significance of the 130 mOhm DC resistance specification?

A: DC resistance directly impacts power dissipation and thermal performance in the circuit. The 130 mOhm maximum specification ensures both parts deliver equivalent thermal characteristics and power efficiency in the application.