Equivalent & Substitute Parts for 264R7C

Part Overview

The 264R7C is a 4.7 µH unshielded wirewound inductor manufactured by Murata Power Solutions Inc., rated for 3.6 A continuous current with a maximum DC resistance of 45mOhm. This component is part of the 2600 series and is actively produced. The part is packaged in Surface Mount configuration with nonstandard dimensions (10.00mm x 9.00mm x 5.80mm) and is ROHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance can be maintained within the specified operating parameters while meeting the same compliance and environmental requirements.

Substiute Parts

264R7C
Murata Power Solutions Inc.In Stock: 953264R7C Datasheet
264R7C
Current Part
SDR1006-4R7ML
Bourns Inc.In Stock: 2046SDR1006-4R7ML Datasheet
SDR1006-4R7ML
MFR Recommended

Key Parameters

Parameter 264R7C
Inductance 4.7 µH
Current Rating 3.6 A
DC Resistance (DCR) 45mOhm Max
Shielding Unshielded
Mounting Type Surface Mount
Operating Temperature Range -40°C ~ 85°C
Self Resonant Frequency 37MHz
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

The SDR1006-4R7ML from Bourns Inc. qualifies as a substitute based on the following alignment of critical parameters:

Matching Electrical Specifications:

  • Identical inductance value: 4.7 µH
  • Higher current rating: 4 A (exceeds 3.6 A requirement)
  • Lower DC resistance: 36mOhm Max (superior to 45mOhm Max)
  • Unshielded configuration maintained
  • Surface Mount packaging maintained

Matching Compliance & Environmental:

  • ROHS3 Compliant
  • Moisture Sensitivity Level 1 (Unlimited)
  • REACH Unaffected status
  • Same ECCN and HTSUS classifications

Physical Compatibility:

  • Nonstandard package maintained
  • Height seated maximum: 5.80mm (identical)
  • Footprint dimensions within acceptable tolerance for Surface Mount applications

Parameter Comparison

Parameter 264R7C (Murata) SDR1006-4R7ML (Bourns)
Inductance 4.7 µH 4.7 µH
Current Rating (Amps) 3.6 A 4 A
DC Resistance (DCR) 45mOhm Max 36mOhm Max
Saturation Current (Isat) Not specified 7.3 A
Shielding Unshielded Unshielded
Self Resonant Frequency 37MHz 40MHz
Operating Temperature Range -40°C ~ 85°C -40°C ~ 125°C
Mounting Type Surface Mount Surface Mount
Package Type Nonstandard Nonstandard
Height - Seated (Max) 5.80mm 5.80mm
RoHS Status ROHS3 Compliant ROHS3 Compliant
MSL Rating 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

The SDR1006-4R7ML is electrically and mechanically compatible with the 264R7C for applications requiring 4.7 µH inductance at 3.6 A or lower current levels. The substitute part provides performance advantages including lower DC resistance (36mOhm vs 45mOhm), higher current rating (4 A vs 3.6 A), and extended operating temperature range (-40°C to 125°C vs -40°C to 85°C).

Both parts maintain identical compliance certifications (ROHS3, REACH Unaffected) and moisture sensitivity ratings. Physical mounting compatibility is maintained with identical seated height and nonstandard package configuration suitable for Surface Mount assembly.

Selection between these parts should be based on availability, lead time, and specific thermal operating requirements of the application.

Frequently Asked Questions (FAQ)

Q: Can the SDR1006-4R7ML directly replace the 264R7C in existing designs?

A: Yes. Both parts share identical inductance (4.7 µH), unshielded configuration, Surface Mount mounting type, and seated height (5.80mm). The substitute part meets or exceeds all electrical specifications of the original part.

Q: What are the key differences between these inductors?

A: The SDR1006-4R7ML features lower DC resistance (36mOhm vs 45mOhm), higher current rating (4 A vs 3.6 A), higher saturation current (7.3 A specified), and extended operating temperature range (125°C vs 85°C maximum). The substitute uses a drum core ferrite construction versus the original wirewound design.

Q: Are there any thermal considerations when substituting?

A: The SDR1006-4R7ML operates to 125°C maximum, providing 40°C additional headroom compared to the 264R7C at 85°C maximum. Applications operating near the upper temperature limit of the original part may benefit from this extended range.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.

Q: Are the footprints identical?

A: Footprints are compatible for Surface Mount assembly. The 264R7C measures 10.00mm x 9.00mm while the SDR1006-4R7ML measures 9.80mm x 9.80mm. Both maintain 5.80mm seated height, ensuring PCB layout compatibility.

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