PM104SH-470-RC Equivalent & Substitute Parts

Part Overview

The PM104SH-470-RC is a 47 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1.65 A continuous current with a maximum DC resistance of 121 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 754 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, lead time considerations, or design flexibility needs.

Key Parameters

Parameter	Value
Inductance	47 µH
Tolerance	±30%
Current Rating	1.65 A
Current - Saturation (Isat)	1.6 A
DC Resistance (DCR)	121 mOhm Max
Shielding	Shielded
Core Material	Ferrite
Type	Drum Core, Wirewound
Operating Temperature	-40°C to 125°C
Mounting Type	Surface Mount
Package Size	10.00 mm x 10.00 mm x 4.10 mm (Max Height)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PM104SH-470-RC is determined by strict equivalence across the following critical parameters:

Inductance value of 47 µH with ±30% tolerance specification ensures functional compatibility in the target circuit application. Current rating of 1.65 A and saturation current of 1.6 A establish the maximum safe operating envelope. DC resistance of 121 mOhm maximum defines the resistive losses and thermal characteristics. Shielded drum core construction with ferrite material maintains electromagnetic isolation and performance consistency. Surface mount packaging and physical dimensions of 10.00 mm x 10.00 mm footprint with 4.10 mm maximum seated height ensure mechanical fit on the PCB. Operating temperature range of -40°C to 125°C and ROHS3 compliance are mandatory for regulatory and environmental requirements.

The SRU1038-470Y meets all these criteria and qualifies as a direct substitute for the PM104SH-470-RC.

Parameter Comparison

Parameter	PM104SH-470-RC	SRU1038-470Y	Match Status
Inductance	47 µH	47 µH	Equivalent
Tolerance	±30%	±30%	Equivalent
Current Rating (Amps)	1.65 A	1.65 A	Equivalent
Current - Saturation (Isat)	1.6 A	1.6 A	Equivalent
DC Resistance (DCR)	121 mOhm Max	121 mOhm	Equivalent
Shielding	Shielded	Shielded	Equivalent
Core Material	Ferrite	Ferrite	Equivalent
Type	Drum Core, Wirewound	Drum Core, Wirewound	Equivalent
Operating Temperature	-40°C to 125°C	-40°C to 125°C	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Package Size	10.00 mm x 10.00 mm	10.00 mm x 10.00 mm	Equivalent
Height - Seated (Max)	4.10 mm	4.10 mm	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
MSL Rating	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

Both the PM104SH-470-RC and SRU1038-470Y are active production components manufactured by Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on inventory availability and lead time requirements. The PM104SH-470-RC currently has 754 units in stock, while the SRU1038-470Y has 16,523 units available. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The identical operating temperature range, moisture sensitivity level, and package specifications ensure interchangeability without design modification.

Frequently Asked Questions (FAQ)

Q: Can the SRU1038-470Y be used as a direct replacement for the PM104SH-470-RC?

A: Yes. Both parts share identical inductance values, current ratings, DC resistance specifications, core materials, shielding characteristics, and physical dimensions. No circuit redesign or PCB layout modification is required.

Q: Are there differences in the Q factor or frequency response between these parts?

A: Both parts specify Q @ 22 at 2.52 MHz and self-resonant frequency of 8 MHz. The PM104SH-470-RC lists inductance frequency test at 2.52 MHz, while the SRU1038-470Y lists 100 kHz. This difference reflects the test methodology used by each manufacturer but does not affect functional equivalence at the specified inductance value.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the PM104SH-470-RC and SRU1038-470Y are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity level). Both are classified under ECCN EAR99.

Q: What is the significance of the different HTSUS codes?

A: The PM104SH-470-RC carries HTSUS code 8504.50.8000, while the SRU1038-470Y carries 8504.50.4000. These codes reflect tariff classification and do not indicate functional or electrical differences between the parts.

Q: Are the package designations identical?

A: Both parts use nonstandard package designations and are supplied in Tape & Reel (TR) packaging. The physical footprint and height specifications are identical at 10.00 mm x 10.00 mm with 4.10 mm maximum seated height.

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