PM528S-4R2-RC Equivalent & Substitute Parts

Part Overview

The PM528S-4R2-RC is a 4.2 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 2.5 A continuous current with a maximum DC resistance of 35 mOhm. This surface mount component is designed for applications requiring controlled inductance with low resistance characteristics in compact form factors. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range, ensuring functional interchangeability in circuit applications.

Substiute Parts

PM528S-4R2-RC

Bourns Inc.In Stock: 1080PM528S-4R2-RC Datasheet

Current PartRFQ

SRR5028-4R2Y

Bourns Inc.In Stock: 5375SRR5028-4R2Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM528S-4R2-RC is determined by strict equivalence across the following critical parameters:

• Inductance Value: 4.2 µH with ±30% tolerance
• Current Rating: 2.5 A continuous
• Saturation Current: 2.2 A minimum
• DC Resistance: 35 mOhm maximum
• Core Type: Ferrite with shielding
• Mounting: Surface mount configuration
• Physical Envelope: 5.80 mm × 5.80 mm × 3.00 mm maximum height
• Temperature Range: -40°C to 125°C operation
• Compliance: RoHS3 and REACH requirements

The SRR5028-4R2Y meets all specified electrical and mechanical parameters, confirming direct substitution capability within the same application context.

Parameter Comparison

Engineering Selection Recommendations

Both PM528S-4R2-RC and SRR5028-4R2Y are active production components from Bourns Inc. with identical electrical specifications and mechanical form factors. Selection between these parts may be based on:

• Inventory Availability: SRR5028-4R2Y currently maintains higher stock levels (5278 pcs vs. 1034 pcs)
• Supply Chain Continuity: Both parts carry equivalent compliance certifications (RoHS3, REACH Unaffected)
• Series Designation: PM528S represents the original series; SRR5028 represents an alternative series designation from the same manufacturer
• Regulatory Compliance: Both parts meet identical environmental and safety standards applicable to surface mount inductors

No performance differentiation exists between these components based on provided specifications.

Frequently Asked Questions (FAQ)

Q: Can SRR5028-4R2Y be used as a direct replacement for PM528S-4R2-RC?

A: Yes. Both components share identical electrical parameters (4.2 µH inductance, 2.5 A rating, 35 mOhm DCR), core material (ferrite), shielding configuration, and physical dimensions (5.80 × 5.80 × 3.00 mm). No circuit modifications are required.

Q: Are there any differences in the package or mounting footprint?

A: No. Both parts use identical surface mount packaging with nonstandard form factor and the same physical envelope. PCB footprints and reflow profiles remain unchanged.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both PM528S-4R2-RC and SRR5028-4R2Y are RoHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings.

Q: What determines substitution eligibility for this inductor category?

A: Substitution is valid when inductance value, tolerance, current rating, saturation current, DC resistance, core material, shielding type, operating temperature range, and physical dimensions remain identical. All these parameters match between the main part and substitute.

Q: Is there a performance difference in Q factor or self-resonant frequency?

A: No. Both parts exhibit identical Q factor (7 @ 7.96 MHz) and self-resonant frequency (51 MHz), confirming equivalent high-frequency behavior.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection may be influenced by current inventory levels, supplier lead times, or existing design documentation preferences. Both parts carry active production status.