PM528S-2R6-RC Equivalent & Substitute Parts

Part Overview

The PM528S-2R6-RC is a 2.6 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 3 A continuous current with a maximum DC resistance of 30 mOhm. This surface mount component is designed for applications requiring controlled inductance with low resistance characteristics in compact form factors. The part maintains Active product status and is ROHS3 compliant, making it suitable for modern electronic assemblies. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same parameter set.

Key Parameters

Parameter	Value
Inductance	2.6 µH
Inductance Tolerance	±30%
Current Rating	3 A
Current - Saturation (Isat)	2.7 A
DC Resistance (DCR)	30 mOhm Max
Core Material	Ferrite
Shielding	Shielded
Q @ Frequency	7 @ 7.96 MHz
Self Resonant Frequency	77 MHz
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Surface Mount
Package Size	0.228" L x 0.228" W (5.80 mm x 5.80 mm)
Height - Seated (Max)	0.118" (3.00 mm)
Packaging	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the PM528S-2R6-RC are identified based on strict equivalence across the following critical parameters:

Inductance value: 2.6 µH with ±30% tolerance
Current rating: 3 A continuous
Saturation current: 2.7 A minimum
DC resistance: 30 mOhm maximum
Core type: Ferrite shielded drum core
Quality factor: 7 @ 7.96 MHz
Self resonant frequency: 77 MHz
Operating temperature range: -40°C ~ 125°C
Mounting: Surface mount
Physical dimensions: 0.228" L x 0.228" W x 0.118" H maximum
Packaging format: Tape & Reel
Compliance: ROHS3 and REACH Unaffected

Substitution is valid only when all electrical and mechanical parameters match within specified tolerances and the component maintains the same functional characteristics in the target application circuit.

Parameter Comparison

Parameter	PM528S-2R6-RC	SRR5028-2R6Y	Match Status
Inductance	2.6 µH	2.6 µH	Equivalent
Inductance Tolerance	±30%	±30%	Equivalent
Current Rating	3 A	3 A	Equivalent
Current - Saturation (Isat)	2.7 A	2.7 A	Equivalent
DC Resistance (DCR)	30 mOhm Max	30 mOhm Max	Equivalent
Core Material	Ferrite	Ferrite	Equivalent
Shielding	Shielded	Shielded	Equivalent
Q @ Frequency	7 @ 7.96 MHz	7 @ 7.96 MHz	Equivalent
Self Resonant Frequency	77 MHz	77 MHz	Equivalent
Operating Temperature Range	-40°C ~ 125°C	-40°C ~ 125°C	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Package Size	0.228" L x 0.228" W (5.80 mm x 5.80 mm)	0.228" L x 0.228" W (5.80 mm x 5.80 mm)	Equivalent
Height - Seated (Max)	0.118" (3.00 mm)	0.118" (3.00 mm)	Equivalent
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Both PM528S-2R6-RC and SRR5028-2R6Y are Active products from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability and supply chain considerations. The PM528S-2R6-RC currently maintains 928 pieces in stock, while the SRR5028-2R6Y has 1241 pieces available. Both components meet ROHS3 compliance requirements and REACH unaffected status, ensuring regulatory compatibility in target applications. The series designation difference (PM528S versus SRR5028) reflects internal Bourns product line organization but does not affect functional equivalence when all specified parameters are identical.

Frequently Asked Questions (FAQ)

Q: Can SRR5028-2R6Y be used as a direct replacement for PM528S-2R6-RC?

A: Yes. Both parts share identical electrical specifications (2.6 µH inductance, 3 A rating, 30 mOhm DCR), core material (ferrite shielded), frequency characteristics (7 @ 7.96 MHz, 77 MHz self resonant), operating temperature range (-40°C ~ 125°C), and physical dimensions (0.228" x 0.228" x 0.118" max). Surface mount packaging and tape & reel format are identical.

Q: Are there any mechanical compatibility concerns when substituting these parts?

A: No. Both components have identical footprint dimensions (5.80 mm x 5.80 mm) and maximum seated height (3.00 mm), ensuring PCB layout compatibility without modification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both PM528S-2R6-RC and SRR5028-2R6Y are ROHS3 compliant and REACH unaffected, with identical moisture sensitivity level (MSL 1 - Unlimited).

Q: What determines substitution eligibility for these inductors?

A: Substitution is valid when inductance value, tolerance, current rating, saturation current, DC resistance, core material, shielding type, frequency characteristics, temperature range, mounting type, package dimensions, and compliance certifications are identical across both parts.

Q: Is there a performance difference between the PM528S and SRR5028 series?

A: No performance difference exists when all specified parameters are equivalent. The series designation reflects product line categorization within Bourns Inc. but does not indicate functional variation.

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