PM428S-2R2-RC Equivalent & Substitute Parts

Part Overview

The PM428S-2R2-RC is a 2.2 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 2.5 A continuous current with a maximum DC resistance of 28 mOhm. This surface mount component is designed for applications requiring fixed inductance in compact form factors. The part is currently active in production and widely available in inventory. Substitute parts may be required due to packaging format availability, supply chain considerations, or specific application mounting requirements.

Substiute Parts

PM428S-2R2-RC

Bourns Inc.In Stock: 957PM428S-2R2-RC Datasheet

Current PartRFQ

SRR4028-2R2Y

Bourns Inc.In Stock: 2530SRR4028-2R2Y Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM428S-2R2-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 2.2 µH (exact match required)
• Current rating: 2.5 A minimum
• DC resistance: 28 mOhm maximum
• Saturation current: 2.05 A minimum
• Core material and shielding: Ferrite, shielded construction
• Operating temperature range: -40°C to 125°C minimum
• Physical footprint: 4.80mm × 4.80mm × 3.00mm maximum
• Surface mount compatibility
• RoHS3 compliance

The SRR4028-2R2Y meets all substitution criteria. The primary distinction between these parts is packaging format: PM428S-2R2-RC is supplied in Tape & Reel (TR) format, while SRR4028-2R2Y is available in Cut Tape (CT) and Digi-Reel® format.

Parameter Comparison

Engineering Selection Recommendations

Both PM428S-2R2-RC and SRR4028-2R2Y are active production components from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on packaging and supply requirements:

• PM428S-2R2-RC: Select when Tape & Reel packaging is required for automated assembly processes
• SRR4028-2R2Y: Select when Cut Tape or Digi-Reel® packaging is preferred or when Tape & Reel format is unavailable

Both parts maintain ROHS3 compliance and are suitable for applications requiring shielded inductors in the 2.2 µH range with 2.5 A current capacity. Electrical performance is identical across all measured parameters.

Frequently Asked Questions (FAQ)

Q: Can SRR4028-2R2Y be used as a direct replacement for PM428S-2R2-RC in PCB assembly?

A: Yes. Both parts have identical electrical characteristics, physical dimensions, and surface mount footprints. The only difference is packaging format. If your assembly process accommodates Cut Tape or Digi-Reel® formats, SRR4028-2R2Y is electrically and mechanically equivalent.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on a reel, suitable for high-volume automated pick-and-place assembly. Cut Tape (CT) provides components on tape segments, typically for lower volumes or manual assembly. Digi-Reel® is a Bourns proprietary format combining benefits of both formats.

Q: Are there any performance differences between PM428S-2R2-RC and SRR4028-2R2Y?

A: No. Both parts share identical inductance, current rating, DC resistance, saturation current, frequency response, and temperature operating range. Performance is equivalent across all electrical and thermal parameters.

Q: Can these inductors be used interchangeably in high-frequency applications?

A: Yes. Both parts have identical Q factor (9.24 @ 7.96 MHz) and self-resonant frequency (111 MHz), making them suitable for identical high-frequency applications.

Q: What compliance certifications apply to both parts?

A: Both PM428S-2R2-RC and SRR4028-2R2Y are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8504.50.8000.