Murata Power Solutions 82153C Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 82153C is a 15 µH unshielded wirewound inductor rated for 400 mA continuous current with a maximum DC resistance of 560 mOhm. This surface mount component in 1210 (3225 Metric) package 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 equivalent electrical performance can be maintained within the specified operating parameters while accommodating design flexibility or inventory availability.

Substiute Parts

82153C

Murata Power Solutions Inc.In Stock: 257982153C Datasheet

Current PartRFQ

SDR0302-150ML

Bourns Inc.In Stock: 3383SDR0302-150ML Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns Inc. SDR0302-150ML qualifies as a functional substitute based on the following alignment of critical electrical parameters:

Matching Parameters:

• Inductance value: 15 µH (identical)
• Shielding type: Unshielded (identical)
• Mounting type: Surface Mount (identical)
• RoHS3 compliance: Yes (identical)
• Moisture sensitivity: MSL 1 Unlimited (identical)

Allowable Variations:

• Current rating: SDR0302-150ML rated 650 mA exceeds the 400 mA requirement, providing operational margin
• DC resistance: SDR0302-150ML at 400 mOhm is lower than the 560 mOhm maximum, reducing power dissipation
• Operating temperature: SDR0302-150ML extends to 125°C versus 85°C, providing wider thermal range
• Inductance tolerance: SDR0302-150ML at ±20% is broader than ±10%, acceptable for fixed value applications

Package Consideration: The SDR0302-150ML uses a nonstandard package with dimensions 3.00mm x 2.80mm versus the 1210 standard 3.20mm x 2.50mm. Physical footprint differences require PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating, meeting regulatory requirements for equivalent applications. The Murata 82153C operates within -40°C to 85°C, while the Bourns SDR0302-150ML extends to 125°C, offering thermal margin for elevated ambient conditions. The SDR0302-150ML provides higher current capacity (650 mA versus 400 mA) and lower DC resistance (400 mOhm versus 560 mOhm maximum), resulting in reduced thermal dissipation. Selection between these parts depends on PCB layout constraints, as the nonstandard package dimensions of the SDR0302-150ML differ from the standard 1210 footprint of the 82153C. Both parts are active products with current manufacturing status and full inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SDR0302-150ML directly replace the Murata 82153C on existing PCBs?

A: Physical substitution requires PCB layout verification. The SDR0302-150ML uses nonstandard dimensions (3.00mm x 2.80mm) compared to the standard 1210 package (3.20mm x 2.50mm). Footprint compatibility must be confirmed before board-level substitution.

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

A: The Murata 82153C specifies ±10% tolerance while the Bourns SDR0302-150ML specifies ±20%. For fixed inductance applications, both tolerances are acceptable. Applications requiring tighter inductance control should specify the Murata part.

Q: Does the lower DC resistance of the SDR0302-150ML provide a functional advantage?

A: The SDR0302-150ML at 400 mOhm maximum versus 560 mOhm maximum reduces resistive losses and associated heat generation. This is advantageous in current-limited applications but does not alter the fundamental inductance function.

Q: Are both parts suitable for high-temperature applications?

A: The Murata 82153C operates to 85°C maximum. The Bourns SDR0302-150ML extends to 125°C, making it suitable for elevated ambient or high-power dissipation environments where the Murata part may approach thermal limits.

Q: What core material differences exist between these inductors?

A: The Murata 82153C uses wirewound construction with unspecified core material. The Bourns SDR0302-150ML uses ferrite drum core with wirewound construction. Both are unshielded and suitable for the same application categories.