PM32-8R2M-RC Equivalent & Substitute Parts

Part Overview

The PM32-8R2M-RC is an 8.2 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 900 mA continuous current with a maximum DC resistance of 200mOhm. This surface mount component is designed for applications requiring stable inductance across a wide operating temperature range of -40°C to 125°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter set, ensuring functional interchangeability in circuit applications.

Substiute Parts

PM32-8R2M-RC

Bourns Inc.In Stock: 1132PM32-8R2M-RC Datasheet

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SDR0302-8R2ML

Bourns Inc.In Stock: 17297SDR0302-8R2ML Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The SDR0302-8R2ML qualifies as a direct substitute for the PM32-8R2M-RC based on the following critical parameters:

• Identical inductance value: 8.2 µH with ±20% tolerance
• Matching current rating: 900 mA continuous
• Equivalent DC resistance specification: 200mOhm maximum
• Identical core material and shielding configuration: Ferrite, unshielded
• Matching operating temperature range: -40°C to 125°C
• Identical physical footprint and mounting type: Surface mount, 3.00mm x 2.80mm x 2.80mm
• Equivalent electrical performance: Q factor 16 @ 7.96MHz, self-resonant frequency 35MHz
• Matching compliance certifications: ROHS3 compliant, MSL 1

The primary difference between these parts is packaging format and saturation current specification, neither of which affects functional substitution in standard circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both PM32-8R2M-RC and SDR0302-8R2ML are active production components from Bourns Inc. with identical ROHS3 compliance and unlimited moisture sensitivity ratings. Selection between these parts should be based on packaging and supply chain requirements rather than electrical performance, as all critical parameters are equivalent.

The SDR0302-8R2ML offers a marginal saturation current advantage (1.05A versus 1A), which provides additional headroom in applications approaching saturation limits. Both parts maintain identical DC resistance, inductance tolerance, and thermal operating range specifications.

Frequently Asked Questions (FAQ)

Q: Can SDR0302-8R2ML be used as a direct replacement for PM32-8R2M-RC in production assemblies?

A: Yes. Both parts share identical electrical specifications for inductance, current rating, DC resistance, core material, and operating temperature range. The physical footprint and mounting type are identical, enabling direct PCB-level substitution without design modification.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) and Digi-Reel® packaging provides smaller quantities on cut tape segments, appropriate for lower-volume production or prototyping. Electrical performance is identical; packaging selection depends on assembly volume and handling requirements.

Q: Are there any thermal or frequency performance differences between these parts?

A: No. Both parts operate across the identical temperature range (-40°C to 125°C) and exhibit matching Q factor (16 @ 7.96MHz) and self-resonant frequency (35MHz) specifications.

Q: Does the saturation current difference (1A versus 1.05A) affect circuit compatibility?

A: The SDR0302-8R2ML saturation current specification is 0.05A higher than the PM32-8R2M-RC. In applications where inductor current remains below 900 mA continuous rating, this difference has no practical effect. For circuits operating near saturation limits, the SDR0302-8R2ML provides marginally increased headroom.

Q: Are both parts compliant with current environmental and trade regulations?

A: Yes. Both PM32-8R2M-RC and SDR0302-8R2ML are ROHS3 compliant, REACH unaffected, and carry identical MSL 1 (unlimited) moisture sensitivity ratings, meeting current environmental and regulatory requirements for commercial electronics manufacturing.