PM32-2R2M-RC Equivalent & Substitute Parts

Part Overview

The PM32-2R2M-RC is a 2.2 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1.65 A continuous current with a maximum DC resistance of 90 mOhm. This surface mount component is designed for applications requiring fixed inductance in compact form factors. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when electrical characteristics, mechanical dimensions, and compliance certifications remain equivalent across the specified operating parameters.

Substiute Parts

PM32-2R2M-RC

Bourns Inc.In Stock: 1026PM32-2R2M-RC Datasheet

Current PartRFQ

SDR0302-2R2ML

Bourns Inc.In Stock: 3215SDR0302-2R2ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM32-2R2M-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 2.2 µH with ±20% tolerance
• Current rating: 1.65 A minimum continuous current capacity
• Saturation current: 1.85 A minimum
• DC resistance: 90 mOhm maximum
• Core type: Ferrite drum core, unshielded construction
• Physical dimensions: 3.00 mm × 2.80 mm × 2.80 mm (surface mount)
• Operating temperature range: -40°C to 125°C minimum
• Compliance: RoHS3 and REACH requirements

The SDR0302-2R2ML meets all specified electrical and mechanical parameters, enabling direct substitution in applications where the PM32-2R2M-RC is currently deployed.

Parameter Comparison

Engineering Selection Recommendations

Both the PM32-2R2M-RC and SDR0302-2R2ML are active production components from Bourns Inc. with identical electrical specifications, mechanical dimensions, and compliance certifications. Selection between these parts may be based on inventory availability, lead time, or supply chain considerations. The SDR0302-2R2ML currently maintains higher inventory levels (3106 pcs vs. 973 pcs), which may influence procurement decisions. Both components satisfy RoHS3 and REACH compliance requirements for regulated applications. No electrical or mechanical performance differentiation exists between these parts under the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the SDR0302-2R2ML be used as a direct replacement for the PM32-2R2M-RC?

A: Yes. Both components share identical inductance values, current ratings, DC resistance specifications, core materials, physical dimensions, and operating temperature ranges. No circuit modifications or board layout adjustments are required.

Q: Are there differences in package or mounting between these parts?

A: No. Both parts use identical surface mount packaging with dimensions of 3.00 mm × 2.80 mm × 2.80 mm. Tape & Reel (TR) packaging is standard for both.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the PM32-2R2M-RC and SDR0302-2R2ML are RoHS3 compliant and REACH unaffected, with MSL 1 (unlimited) moisture sensitivity ratings.

Q: What is the significance of the ±20% inductance tolerance?

A: The ±20% tolerance defines the acceptable range of inductance values from the nominal 2.2 µH specification. Both substitute parts maintain this identical tolerance band, ensuring equivalent circuit performance across production variations.

Q: Are the Q factor and self-resonant frequency specifications identical?

A: Yes. Both parts exhibit Q factor of 22 at 7.96 MHz and self-resonant frequency of 75 MHz, indicating identical high-frequency performance characteristics.

Q: What factors should determine part selection between these two equivalents?

A: Selection should be based on inventory availability, supplier lead times, and procurement cost. No technical performance differentiation exists. The SDR0302-2R2ML offers higher current inventory levels, which may reduce procurement lead time.