Bourns CSS2

CSS2 variants from Bourns

CSS2 Datasheet

Variants

Mfr

Bourns

Lifecycle

Active

CSS2 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.
9 distinct suffix patternsExamples: H-2512K-2L00F, H-2512R-1L00F, H-2512R-L300F, H-2512R-L500F, H-3920R-1L00F (+4 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 9 CSS2 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
CSS2H-2512K-2L00F	RES 0.002 OHM 1% 5W 2512	Bourns	Active	Compliant	In Stock	RFQ
CSS2H-2512R-1L00F	RES 0.001 OHM 1% 5W 2512	Bourns	Active	Compliant	In Stock	RFQ
CSS2H-2512R-L300F	RES 300UOHM 1% 6W 2512	Bourns	Active	Compliant	In Stock	RFQ
CSS2H-2512R-L500F	RES SMD 500 UOHM 1% 6W 2512	Bourns	Active	Compliant	In Stock	RFQ
CSS2H-3920R-1L00F	RES 0.001 OHM 1% 8W 3920	Bourns	Active	Compliant	In Stock	RFQ
CSS2H-3920R-L200F	RES SMD 200 UOHM 1% 12W 3920	Bourns	Active	Compliant	In Stock	RFQ
CSS2H-3920R-L500F	RES SMD 500 UOHM 1% 9W 3920	Bourns	Active	Compliant	In Stock	RFQ
CSS2H-3920R-L500FE	RES SMD 500 UOHM 1% 9W 3920	Bourns	Active	Compliant	In Stock	RFQ
CSS2H-5930K-1L00F	RES 0.001 OHM 1% 9W 5930	Bourns	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on CSS2 map to package, grade, and reel options.

How to Choose the Right CSS2 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 CSS2, 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 "CSS2" — include the full suffix (e.g. H-2512K-2L00F, H-2512R-1L00F, H-2512R-L300F). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for CSS2 product family

Identity

Base Model

CSS2

Manufacturer

Bourns

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source CSS2 with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 9 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 CSS2 product family.

Is CSS2 a single part I can order, or a family prefix?

CSS2 is a base / family code from Bourns. You order a full MPN such as CSS2H-2512K-2L00F, CSS2H-2512R-1L00F, CSS2H-2512R-L300F. The variant table lists 9 orderable lines with different suffixes.

What do the suffix letters on CSS2 part numbers mean?

Listed suffix fragments include: H-2512K-2L00F, H-2512R-1L00F, H-2512R-L300F, H-2512R-L500F, H-3920R-1L00F, H-3920R-L200F. 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 CSS2 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 CSS2?

Full manufacturer MPN (not just CSS2), 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 CSS2 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.