PM32-151M-RC Equivalent & Substitute Parts

Part Overview

The PM32-151M-RC is a 150 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 200 mA continuous current with a maximum DC resistance of 4.6Ohm. This surface mount component operates across the temperature range of -40°C to 125°C and is classified as Active product status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

PM32-151M-RC

Bourns Inc.In Stock: 1102PM32-151M-RC Datasheet

Current PartRFQ

SDR0302-151KL

Bourns Inc.In Stock: 4457SDR0302-151KL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM32-151M-RC is determined by strict equivalence across the following critical parameters:

Inductance value must be 150 µH with tolerance specifications that maintain circuit performance within design margins. Current rating must support minimum 200 mA continuous operation with saturation current of 230 mA or greater. DC resistance must not exceed 4.6Ohm maximum to preserve power dissipation characteristics. Core material must be ferrite with unshielded configuration. Physical dimensions must match 3.00mm x 2.80mm footprint with maximum seated height of 2.80mm for PCB assembly compatibility. Operating temperature range must encompass -40°C to 125°C. Surface mount packaging and nonstandard case type must be maintained. RoHS3 compliance and MSL 1 rating are required for regulatory and environmental compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SDR0302-151KL qualifies as a direct substitute for the PM32-151M-RC based on electrical and mechanical parameter equivalence. Both components maintain Active product status from Bourns Inc. and satisfy ROHS3 compliance requirements. The SDR0302-151KL exhibits a tighter inductance tolerance of ±10% compared to the PM32-151M-RC at ±20%, which represents an improvement in inductance accuracy without introducing incompatibility. All critical parameters including current rating, saturation current, DC resistance, core material, shielding configuration, frequency characteristics, operating temperature range, and physical dimensions are identical. Moisture sensitivity level and regulatory compliance status are equivalent across both parts.

Frequently Asked Questions (FAQ)

Q: Can SDR0302-151KL replace PM32-151M-RC in existing designs?

A: Yes. Both components share identical inductance value, current rating, DC resistance, physical dimensions, and operating temperature specifications. The SDR0302-151KL provides equivalent electrical performance with tighter inductance tolerance.

Q: What is the difference in inductance tolerance between these parts?

A: PM32-151M-RC specifies ±20% tolerance while SDR0302-151KL specifies ±10% tolerance. The tighter tolerance of SDR0302-151KL does not create incompatibility; it represents improved accuracy for the same nominal 150 µH inductance value.

Q: Are the physical footprints identical?

A: Yes. Both parts measure 3.00mm length by 2.80mm width with maximum seated height of 2.80mm, ensuring identical PCB assembly compatibility and mounting characteristics.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both PM32-151M-RC and SDR0302-151KL are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, satisfying equivalent environmental and regulatory standards.

Q: Are there differences in electrical performance characteristics?

A: No. Both components exhibit identical Q factor of 38 at 796kHz, self-resonant frequency of 9MHz, saturation current of 230mA, and maximum DC resistance of 4.6Ohm.