PM528S-220-RC Equivalent & Substitute Parts

Part Overview

The PM528S-220-RC is a 22 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1.1 A continuous current with a maximum DC resistance of 120 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 substantial inventory availability. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductor category.

Key Parameters

Parameter	Value
Inductance	22 µH
Inductance Tolerance	±30%
Current Rating	1.1 A
DC Resistance (DCR)	120 mOhm Max
Shielding	Shielded
Core Material	Ferrite
Operating Temperature Range	-40°C to 125°C
Mounting Type	Surface Mount
Physical Dimensions	5.80mm L x 5.80mm W x 3.00mm H
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the PM528S-220-RC is determined by strict equivalence across the following critical parameters:

Inductance value: 22 µH with ±30% tolerance
Current rating: minimum 1.1 A continuous
DC resistance: 120 mOhm maximum
Core type: Ferrite shielded drum core
Mounting: Surface mount configuration
Physical footprint: 5.80mm x 5.80mm x 3.00mm maximum
Operating temperature: -40°C to 125°C minimum range
Regulatory compliance: ROHS3 compliant

The SRR5028-220Y meets all substitution criteria within these parameters.

Parameter Comparison

Parameter	PM528S-220-RC	SRR5028-220Y	Match Status
Inductance	22 µH	22 µH	Equivalent
Inductance Tolerance	±30%	±30%	Equivalent
Current Rating (Amps)	1.1 A	1.15 A	Compatible
Current - Saturation (Isat)	1 A	1 A	Equivalent
DC Resistance (DCR)	120 mOhm Max	120 mOhm Max	Equivalent
Shielding	Shielded	Shielded	Equivalent
Core Material	Ferrite	Ferrite	Equivalent
Q @ Freq	7 @ 2.52 MHz	7 @ 2.52 MHz	Equivalent
Frequency - Self Resonant	20 MHz	20 MHz	Equivalent
Operating Temperature Range	-40°C to 125°C	-40°C to 125°C	Equivalent
Inductance Frequency - Test	100 kHz	100 kHz	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Physical Dimensions	5.80mm x 5.80mm x 3.00mm	5.80mm x 5.80mm x 3.00mm	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent

Engineering Selection Recommendations

The SRR5028-220Y is a direct substitute for the PM528S-220-RC. Both components are manufactured by Bourns Inc. and maintain identical electrical specifications across inductance, DC resistance, frequency response, and thermal operating range. The SRR5028-220Y provides a 0.05 A higher current rating (1.15 A versus 1.1 A), which represents improved headroom for the same application requirements.

Both parts carry ROHS3 compliance, REACH unaffected status, and MSL Level 1 rating. The physical footprint and mounting configuration are identical, ensuring direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the SRR5028-220Y replace the PM528S-220-RC in existing designs?

A: Yes. The SRR5028-220Y meets all electrical and mechanical specifications of the PM528S-220-RC. The higher current rating provides additional design margin without affecting circuit performance.

Q: Are there packaging differences between these parts?

A: The PM528S-220-RC is supplied in Tape & Reel (TR) packaging, while the SRR5028-220Y is supplied in Cut Tape (CT) and Digi-Reel® packaging. Both are surface mount compatible with identical component dimensions and mounting footprints.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the PM528S-220-RC and SRR5028-220Y are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 moisture sensitivity rating.

Q: What is the tolerance specification for inductance?

A: Both parts maintain ±30% inductance tolerance at the 100 kHz test frequency.

Q: Are the DC resistance specifications identical?

A: Yes. Both parts specify a maximum DC resistance of 120 mOhm, ensuring equivalent power dissipation characteristics in circuit applications.

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