PM428S-151-RC Equivalent & Substitute Parts

Part Overview

The PM428S-151-RC is a 150 µH shielded drum core wirewound inductor manufactured by Bourns Inc., designed for surface mount applications. This component is rated for 420 mA continuous current with a maximum DC resistance of 860 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across critical parameters including inductance value, current rating, DC resistance, shielding characteristics, and package dimensions.

Substiute Parts

PM428S-151-RC

Bourns Inc.In Stock: 1084PM428S-151-RC Datasheet

Current PartRFQ

SRR4028-151Y

Bourns Inc.In Stock: 4347SRR4028-151Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM428S-151-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 150 µH with ±30% tolerance
• Current rating: 420 mA minimum continuous current capability
• Saturation current: 260 mA minimum
• DC resistance: 860 mOhm maximum
• Core type: Ferrite material with shielding
• Physical package: 4.80 mm × 4.80 mm × 3.00 mm maximum height
• Surface mount configuration
• Operating temperature range: -40°C to 125°C
• Regulatory compliance: ROHS3 and REACH requirements

The SRR4028-151Y meets all specified electrical and mechanical parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both PM428S-151-RC and SRR4028-151Y are active production components from Bourns Inc. with identical electrical specifications and physical dimensions. Selection between these parts is based on availability and supply chain considerations rather than technical performance differences.

Both components maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use. The MSL 1 rating for both parts indicates unlimited shelf life under standard storage conditions.

The SRR4028-151Y currently maintains higher inventory availability (4300 pcs) compared to PM428S-151-RC (977 pcs), which may influence procurement decisions in high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can SRR4028-151Y be used as a direct replacement for PM428S-151-RC?

A: Yes. Both components share identical electrical parameters (150 µH inductance, 420 mA current rating, 860 mOhm DCR), core material (ferrite), shielding configuration, and physical dimensions (4.80 mm × 4.80 mm × 3.00 mm). They are functionally equivalent for all circuit applications.

Q: Are there differences in package designation between these parts?

A: The PM428S-151-RC uses a nonstandard package designation, while the SRR4028-151Y uses the 1919 (4848 Metric) package designation. Despite different naming conventions, both components have identical physical dimensions and surface mount compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both PM428S-151-RC and SRR4028-151Y are ROHS3 compliant and REACH unaffected. Both carry MSL 1 rating with unlimited moisture sensitivity protection.

Q: What is the saturation current specification and why is it important?

A: Both parts have a saturation current (Isat) of 260 mA. This represents the current level at which the inductor begins to lose its inductance value due to core saturation. Circuit designs must ensure operating current remains below this threshold to maintain specified inductance performance.

Q: Are there any thermal considerations for these inductors?

A: Both components operate across -40°C to 125°C. DC resistance specifications are provided at standard conditions. In high-current applications, thermal management should account for I²R losses, which are identical for both parts given their matching 860 mOhm DCR specification.