28153C Equivalent & Substitute Parts Reference

Part Overview

The Murata Power Solutions Inc. 28153C is a 15 µH unshielded wirewound inductor rated for 4.77 A with a maximum DC resistance of 28mOhm. This surface mount component operates across -40°C to 125°C and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for production and field service applications.

Substiute Parts

28153C

Murata Power Solutions Inc.In Stock: 94028153C Datasheet

Current PartRFQ

SC5022F-150

Signal TransformerIn Stock: 731SC5022F-150 Datasheet

MFR RecommendedRFQ

SDR1806-150ML

Bourns Inc.In Stock: 1398SDR1806-150ML Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 28153C is determined by the following critical parameters:

• Inductance Value: Must be 15 µH (exact match required)
• Current Rating: Substitute must support minimum 4.77 A; higher ratings are acceptable
• DC Resistance: Substitute DCR must not exceed 28mOhm to maintain circuit performance
• Shielding Configuration: Must be unshielded to match electromagnetic characteristics
• Mounting Type: Must be surface mount for PCB compatibility
• Operating Temperature Range: Must cover -40°C to 125°C minimum
• Construction Type: Wirewound construction required for inductance stability

Both substitute parts meet these core substitution criteria while offering active product status and improved long-term availability.

Parameter Comparison

Engineering Selection Recommendations

SC5022F-150 (Signal Transformer): This substitute maintains active product status with ROHS3 compliance. The 4.5 A current rating and 36mOhm DCR represent acceptable trade-offs for applications where the original 28153C is no longer procurable. The 8A saturation current provides additional headroom for transient conditions.

SDR1806-150ML (Bourns Inc.): This substitute offers the most extensive availability with 1352 pieces in stock. The drum core ferrite construction with 4.3 A rating and 35mOhm DCR is suitable for designs tolerant of slightly reduced current capacity. ROHS3 compliance and active product status ensure sustained supply chain support. The measured Q factor (20 @ 2.52MHz) and self-resonant frequency (17MHz) are documented for circuit analysis.

Both substitutes are compliant with current environmental regulations (ROHS3, REACH Unaffected) and carry unlimited moisture sensitivity level (MSL 1), matching the original component's reliability profile.

Frequently Asked Questions (FAQ)

Q: Can SC5022F-150 or SDR1806-150ML be used as direct replacements for 28153C?

A: Both parts are functionally equivalent for applications operating at or below 4.3 A. The 28153C's 4.77 A rating exceeds both substitutes; applications requiring the full 4.77 A rating must be re-evaluated. All three parts share identical 15 µH inductance, unshielded configuration, surface mount packaging, and -40°C to 125°C operating range.

Q: Why do the substitute parts have higher DC resistance?

A: SC5022F-150 specifies 36mOhm and SDR1806-150ML specifies 35mOhm compared to 28153C's 28mOhm. This 7-25% increase in DCR will result in proportionally higher resistive losses in the inductor. Circuit designs with tight power budget constraints should account for this difference through thermal analysis or current derating.

Q: Are there packaging differences between these parts?

A: All three parts are surface mount with nonstandard package dimensions. Physical dimensions vary slightly: 28153C measures 18.50mm × 15.20mm × 7.60mm height; SC5022F-150 measures 19.04mm × 15.74mm × 7.11mm height; SDR1806-150ML measures 18.30mm × 14.00mm × 6.90mm height. PCB layout verification is required before substitution.

Q: What is the difference between wirewound and drum core wirewound construction?

A: The 28153C and SC5022F-150 use standard wirewound construction. The SDR1806-150ML uses drum core ferrite construction, which provides improved thermal characteristics and more stable inductance across temperature and frequency ranges. Both construction types are suitable for the specified operating conditions.

Q: Do the substitute parts have documented frequency characteristics?

A: SC5022F-150 does not provide Q factor or self-resonant frequency data. SDR1806-150ML specifies Q of 20 @ 2.52MHz and self-resonant frequency of 17MHz. The 28153C provides Q of 31 @ 1MHz and self-resonant frequency of 17.8MHz. Applications sensitive to frequency response should prioritize SDR1806-150ML for documented performance data.

Q: Are all parts RoHS compliant?

A: Yes. The 28153C is RoHS Compliant. Both SC5022F-150 and SDR1806-150ML are ROHS3 Compliant, representing the current regulatory standard. All parts are REACH Unaffected and carry EAR99 export classification.