Diodes Incorporated SDM20U

SDM20U variants from Diodes Incorporated

SDM20U Datasheet

Variants

Mfr

Diodes Incorporated

Lifecycle

Active

SDM20U 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.
7 distinct suffix patternsExamples: 30-7, 30LP-7, 30LPQ-7, 30Q-7, 40-7 (+2 more). 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 7 SDM20U 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
SDM20U30-7	DIODE SCHOTTKY 30V 200MA SOD523	Diodes Incorporated	Active	Compliant	In Stock	RFQ
SDM20U30LP-7	DIODE SCHOTTKY 30V 200MA 2DFN	Diodes Incorporated	Active	Compliant	In Stock	RFQ
SDM20U30LPQ-7	DIODE SCHOTTKY 30V 200MA 2DFN	Diodes Incorporated	Active	Compliant	In Stock	RFQ
SDM20U30Q-7	DIODE SCHOTTKY 30V 200MA SOD523	Diodes Incorporated	Active	Compliant	In Stock	RFQ
SDM20U40-7	DIODE SCHOTTKY 40V 250MA SOD523	Diodes Incorporated	Active	Compliant	In Stock	RFQ
SDM20U40Q-13	DIODE SCHOT 40V 250MA SOD523 10K	Diodes Incorporated	Active	Compliant	In Stock	RFQ
SDM20U40Q-7	DIODE SCHOTTKY 40V 250MA SOD523	Diodes Incorporated	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on SDM20U map to package, grade, and reel options.

How to Choose the Right SDM20U 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 SDM20U, 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 "SDM20U" — include the full suffix (e.g. 30-7, 30LP-7, 30LPQ-7). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for SDM20U product family

Identity

Base Model

SDM20U

Manufacturer

Diodes Incorporated

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source SDM20U with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 7 ordering variants from Diodes Incorporated. 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 Diodes Incorporated Browse all base models →

Frequently Asked Questions

Common technical questions about the SDM20U product family.

Is SDM20U a single part I can order, or a family prefix?

SDM20U is a base / family code from Diodes Incorporated. You order a full MPN such as SDM20U30-7, SDM20U30LP-7, SDM20U30LPQ-7. The variant table lists 7 orderable lines with different suffixes.

What do the suffix letters on SDM20U part numbers mean?

Listed suffix fragments include: 30-7, 30LP-7, 30LPQ-7, 30Q-7, 40-7, 40Q-13. Typically they encode package (see Package column), temperature grade, and tape/reel option. Always decode on the Diodes Incorporated datasheet ordering guide — do not guess from pattern alone.

What is the lifecycle status of SDM20U 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 SDM20U?

Full manufacturer MPN (not just SDM20U), 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 SDM20U 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.