STMicroelectronics STPS1L40

STPS1L40 variants from STMicroelectronics

Variants

Mfr

STMicroelectronics

Lifecycle

Active

STPS1L40 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.
6 distinct suffix patternsExamples: A, AY, M, U, ZF (+1 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 6 STPS1L40 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
STPS1L40A	40V 1A Schottky Rectifier, SMA, Surface Mount	STMicroelectronics	Active	Compliant	In Stock	RFQ
STPS1L40AY	Automotive 40 V, 1 A Low Drop Power Schottky Rectifier	STMicroelectronics	Active	Compliant	In Stock	RFQ
STPS1L40M	1A 40V Schottky Rectifier, DO-216AA, Surface Mount	STMicroelectronics	Active	Compliant	In Stock	RFQ
STPS1L40U	1A 40V Schottky Rectifier, SMB, Surface Mount	STMicroelectronics	Active	Compliant	In Stock	RFQ
STPS1L40ZF	40 V, 1 A Low Drop Power Schottky Rectifier	STMicroelectronics	Active	Compliant	In Stock	RFQ
STPS1L40ZFY	Automotive 40 V, 1 A Low Drop Power Schottky Rectifier	STMicroelectronics	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on STPS1L40 map to package, grade, and reel options.

How to Choose the Right STPS1L40 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 STPS1L40, 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 "STPS1L40" — include the full suffix (e.g. A, AY, M). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for STPS1L40 product family

Identity

Base Model

STPS1L40

Manufacturer

STMicroelectronics

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source STPS1L40 with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 6 ordering variants from STMicroelectronics. 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 STMicroelectronics Browse all base models →

Frequently Asked Questions

Common technical questions about the STPS1L40 product family.

Is STPS1L40 a single part I can order, or a family prefix?

STPS1L40 is a base / family code from STMicroelectronics. You order a full MPN such as STPS1L40A, STPS1L40AY, STPS1L40M. The variant table lists 6 orderable lines with different suffixes.

What do the suffix letters on STPS1L40 part numbers mean?

Listed suffix fragments include: A, AY, M, U, ZF, ZFY. Typically they encode package (see Package column), temperature grade, and tape/reel option. Always decode on the STMicroelectronics datasheet ordering guide — do not guess from pattern alone.

What is the lifecycle status of STPS1L40 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 STPS1L40?

Full manufacturer MPN (not just STPS1L40), 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.