ROHM RFN20NS

RFN20NS variants from ROHM

RFN20NS Datasheet

Variants

Mfr

ROHM

Lifecycle

Active

RFN20NS Overview

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

Key Features

Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
2 distinct suffix patternsExamples: 3SFHTL, 4SFHTL. Decode suffix meaning in the ordering notes under the variant table.

Target Applications

Rectifier Diodes — 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 2 RFN20NS 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
RFN20NS3SFHTL	DIODE GEN PURP 350V 20A LPDS	ROHM	Active	Compliant	In Stock	RFQ
RFN20NS4SFHTL	DIODE GEN PURP 430V 20A LPDS	ROHM	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on RFN20NS map to package, grade, and reel options.

How to Choose the Right RFN20NS Rectifier Diodes

📦

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 RFN20NS, 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 "RFN20NS" — include the full suffix (e.g. 3SFHTL, 4SFHTL). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for RFN20NS product family

Identity

Base Model

RFN20NS

Manufacturer

ROHM

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source RFN20NS with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 2 ordering variants from ROHM. 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 ROHM Browse all base models →

Frequently Asked Questions

Common technical questions about the RFN20NS product family.

Is RFN20NS a single part I can order, or a family prefix?

RFN20NS is a base / family code from ROHM. You order a full MPN such as RFN20NS3SFHTL, RFN20NS4SFHTL. The variant table lists 2 orderable lines with different suffixes.

What do the suffix letters on RFN20NS part numbers mean?

Listed suffix fragments include: 3SFHTL, 4SFHTL. Typically they encode package (see Package column), temperature grade, and tape/reel option. Always decode on the ROHM datasheet ordering guide — do not guess from pattern alone.

What is the lifecycle status of RFN20NS 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 RFN20NS?

Full manufacturer MPN (not just RFN20NS), 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 RFN20NS 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.