PM32-1R0M-RC Equivalent & Substitute Parts

Part Overview

The PM32-1R0M-RC is a 1 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 2.1 A continuous current with a maximum DC resistance of 60 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. Substitute parts are identified when electrical specifications, mechanical dimensions, and compliance certifications remain equivalent across the product lifecycle or when primary inventory becomes constrained.

Substiute Parts

PM32-1R0M-RC

Bourns Inc.In Stock: 1044PM32-1R0M-RC Datasheet

Current PartRFQ

SDR0302-1R0ML

Bourns Inc.In Stock: 6232SDR0302-1R0ML Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The SDR0302-1R0ML qualifies as a direct substitute for the PM32-1R0M-RC based on the following equivalence criteria:

Electrical Parameters Match:

• Inductance: 1 µH (identical)
• Tolerance: ±20% (identical)
• Current Rating: 2.1 A (identical)
• Saturation Current: 2.7 A (identical)
• DC Resistance: 60 mOhm Max (identical)
• Q Factor: 20 @ 7.96 MHz (identical)
• Self Resonant Frequency: 125 MHz (identical)
• Inductance Test Frequency: 1 kHz (identical)

Mechanical Parameters Match:

• Core Type: Drum Core, Wirewound (identical)
• Core Material: Ferrite (identical)
• Shielding: Unshielded (identical)
• Package Dimensions: 3.00 mm L × 2.80 mm W × 2.80 mm H (identical)
• Mounting Type: Surface Mount (identical)

Compliance & Environmental Match:

• Operating Temperature: -40°C to 125°C (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: MSL 1 (Unlimited) (identical)
• REACH Status: REACH Unaffected (identical)

Parameter Comparison

Engineering Selection Recommendations

Both PM32-1R0M-RC and SDR0302-1R0ML are active production parts from Bourns Inc. with identical electrical, mechanical, and compliance specifications. Selection between these parts should be based on inventory availability and supply chain considerations. The SDR0302-1R0ML currently maintains higher inventory levels (6129 pcs) compared to PM32-1R0M-RC (999 pcs), making it suitable for high-volume procurement scenarios. Both parts carry ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility in equivalent applications. No performance differentiation exists between these parts for the specified electrical and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can SDR0302-1R0ML be used as a direct replacement for PM32-1R0M-RC in existing designs?

A: Yes. All electrical parameters, mechanical dimensions, and compliance certifications are identical. No circuit redesign or PCB layout modification is required.

Q: Are there any differences in package dimensions between these parts?

A: No. Both parts share identical package dimensions of 3.00 mm length × 2.80 mm width × 2.80 mm height, ensuring identical PCB footprint compatibility.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and rated for identical operating temperature ranges of -40°C to 125°C with MSL 1 moisture sensitivity rating.

Q: What is the basis for substitution between these two part numbers?

A: Substitution is based on complete equivalence across all specified electrical parameters (inductance, current rating, DC resistance, Q factor, resonant frequency), mechanical specifications (core type, material, dimensions, mounting), and compliance certifications (RoHS, REACH, temperature rating, MSL).

Q: Is there any performance difference in inductance tolerance or saturation characteristics?

A: No. Both parts maintain ±20% inductance tolerance and identical saturation current of 2.7 A at 2.1 A rated current.