Bourns SRR4028

SRR4028 variants from Bourns

SRR4028 Datasheet

Variants

Mfr

Bourns

Lifecycle

Active

SRR4028 Overview

What changes between part numbers, and what to check before you lock the BOM — Passive Components.

Key Features

Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
20 distinct suffix patternsExamples: 100Y, 101Y, 120Y, 121Y, 150Y (+15 more). Decode suffix meaning in the ordering notes under the variant table.

Target Applications

Passive Components — design-in and field replacement
BOM scrub where only the base prefix is known but suffix is TBD
Second-source checks when the original MPN is constrained

Ordering Variants

Compare 20 SRR4028 part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.

Part Number	Description	Manufacturer	Lifecycle	RoHS	Availability	Action
SRR4028-100Y	FIXED IND 10UH 1.19A 110MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-101Y	FIXED IND 100UH 510MA 600MOHM SM	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-120Y	FIXED IND 12UH 1.12A 125MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-121Y	FIXED IND 120UH 470MA 700MOHM SM	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-150Y	FIXED IND 15UH 1.03A 150MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-1R8Y	FIXED IND 1.8UH 2.7A 25 MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-220Y	FIXED IND 22UH 930MA 185MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-221Y	FIXED IND 220UH 340MA 1.25OHM SM	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-270Y	FIXED IND 27UH 890MA 200MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-2R2Y	FIXED IND 2.2UH 2.5A 28 MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-2R7Y	FIXED IND 2.7UH 2.35A 30MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-331Y	FIXED IND 330UH 300MA 1.7OHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-390Y	FIXED IND 39UH 800MA 250MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-3R3Y	FIXED IND 3.3UH 2.15A 35MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-470Y	FIXED IND 47UH 750MA 280MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-471Y	FIXED IND 470UH 240MA 2.6OHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-4R7Y	FIXED IND 4.7UH 1.55A 70MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-560Y	FIXED IND 56UH 700MA 320MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-680Y	FIXED IND 68UH 630MA 400MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ
SRR4028-6R8Y	FIXED IND 6.8UH 1.3A 90 MOHM SMD	Bourns	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on SRR4028 map to package, grade, and reel options.

How to Choose the Right SRR4028 Passive Components

📦

Match the footprint first

Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.

⚡

Electrical headroom

Compare voltage and current columns in the variant table. For SRR4028, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.

🌡️

Temp grade letter matters

Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.

🔢

Copy the full MPN

Do not BOM only "SRR4028" — include the full suffix (e.g. 100Y, 101Y, 120Y). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for SRR4028 product family

Identity

Base Model

SRR4028

Manufacturer

Bourns

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source SRR4028 with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 20 ordering variants from Bourns. Our team supports active, EOL, and hard-to-find component sourcing.

Original manufacturer parts with traceability options
BOM upload and multi-line RFQ support
Package, grade, and compliance verification

Request Quote View Bourns Browse all base models →

Frequently Asked Questions

Common technical questions about the SRR4028 product family.

Is SRR4028 a single part I can order, or a family prefix?

SRR4028 is a base / family code from Bourns. You order a full MPN such as SRR4028-100Y, SRR4028-101Y, SRR4028-120Y. The variant table lists 20 orderable lines with different suffixes.

What do the suffix letters on SRR4028 part numbers mean?

Listed suffix fragments include: 100Y, 101Y, 120Y, 121Y, 150Y, 1R8Y. Typically they encode package (see Package column), temperature grade, and tape/reel option. Always decode on the Bourns datasheet ordering guide — do not guess from pattern alone.

What is the lifecycle status of SRR4028 variants?

Lifecycle values in our listing: Active. Status is per MPN suffix — one variant can be Active while another is NRND. Check PCN for your exact suffix before multi-year commitments.

What should I send for an RFQ on SRR4028?

Full manufacturer MPN (not just SRR4028), quantity, needed date code, reel vs tube, and any compliance docs (CoC, RoHS, conflict minerals). If you only know the base prefix, include a photo of the existing label or reel.

Where is the SRR4028 datasheet?

Use the datasheet link in the page header. Cross-check electrical curves (SOA, saturation voltage, etc.) against your operating point — the table summarizes order codes, not every graph in the PDF.