STPS140AY STPS140AY is a Schottky rectifier diode rated for 40V reverse voltage and 1A average rectified current. It features a low forward voltage of 650mV at 2A and fast switching speed.
Mfr Part #:

STPS140AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
STPS140AY is a Schottky rectifier diode rated for 40V reverse voltage and 1A average rectified current. It features a low forward voltage of 650mV at 2A and fast switching speed.
Total Stock: 20,000 pcs
$ Price Range: $0.08 - $0.50

STPS140AY Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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20,000 pcs
20000 pcs On Request 1 On Request On Request On Request On Request On Request

STPS140AY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Forward Voltage (Vf) (Max) @ If
Mounting Type
Operating Temperature
Speed
Supplier Device Package
Tape & Reel
Technology
Voltage

STPS140AY Description

Short technical summary and product information.

The STPS140AY is a Schottky barrier rectifier diode designed for high-efficiency power conversion. It offers a maximum reverse voltage of 40V and an average rectified current of 1A. The forward voltage is typically 650mV at a forward current of 2A, enabling low power dissipation. The device features fast recovery time (≤500ns at >200mA), making it suitable for high-frequency switching applications. The diode is housed in a surface-mount DO-214AC (SMA) package, which is compact and suitable for automated assembly. The operating temperature range is -40°C to 150°C, allowing use in harsh environments. Typical applications include polarity protection, freewheeling diodes, and DC-DC converters.

STPS140AY Quick Information

Product Type: Schottky Rectifier Diode
Canonical Name: STMicroelectronics STPS140AY Schottky Rectifier Diode, 40V, 1A, SMA
Subcategory: Single Rectifier Diode

STPS140AY Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

STPS140AY Estimated Pricing

Qty Low High
1+ $0.50 $0.50
10+ $0.31 $0.31
100+ $0.19 $0.19
500+ $0.15 $0.15
1,000+ $0.12 $0.12
5,000+ $0.10 $0.10
10,000+ $0.09 $0.09
25,000+ $0.08 $0.08

Estimated market price range - modelled values for guidance only, not live distributor offers.

STPS140AY Features

  • Schottky technology for low forward voltage drop.
  • Rated for 40V reverse voltage and 1A forward current.
  • Fast recovery time under 500ns.
  • Surface-mount SMA package for compact designs.
  • Wide operating temperature range -40°C to 150°C.

STPS140AY Applications

  • Used in polarity protection circuits.
  • Suitable for freewheeling diodes in DC-DC converters.
  • Ideal for low-voltage rectification in power supplies.
  • Applicable in high-frequency switching circuits.

STPS140AY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage of the STPS140AY?

40V.

What is the average rectified current rating?

1A.

What is the forward voltage drop?

Maximum 650mV at 2A forward current.

What is the recovery time?

Fast recovery ≤500ns at >200mA.

What package does the STPS140AY come in?

DO-214AC (SMA) surface-mount package.

What is the operating temperature range?

-40°C to 150°C.

What is the mounting type?

Surface mount.

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