STPS3L40SY STPS3L40SY is a 40V, 3A Schottky rectifier diode in a surface-mount SMC package (DO-214AB) with a low forward voltage of 500 mV at 3A.
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STPS3L40SY

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
STPS3L40SY is a 40V, 3A Schottky rectifier diode in a surface-mount SMC package (DO-214AB) with a low forward voltage of 500 mV at 3A.
Total Stock: 60,600 pcs
$ Price Range: $0.15 - $0.79

STPS3L40SY Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
60,000 pcs
60000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
600 pcs
600 pcs On Request 1 On Request On Request 16+ On Request On Request

STPS3L40SY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
Current
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Tape & Reel
Technology
Voltage
Voltage - DC Reverse (Vr) (Max)

STPS3L40SY Description

Short technical summary and product information.

The STPS3L40SY is a Schottky rectifier diode manufactured by STMicroelectronics. It is designed for high-efficiency power conversion applications requiring a low forward voltage drop and fast switching. The device is rated for a maximum repetitive reverse voltage of 40 V and an average rectified forward current of 3 A. The maximum forward voltage is 500 mV at a forward current of 3 A, enabling low conduction losses. The diode offers fast recovery characteristics with recovery time equal to or less than 500 ns at currents above 200 mA, making it suitable for high-frequency operation. It is housed in a DO-214AB (SMC) surface-mount package and supports an operating junction temperature range from -40°C to 150°C, allowing use in demanding thermal environments. The part is RoHS3 compliant and REACH unaffected. This diode is commonly used in power supply rectification, DC-DC converter freewheeling, and reverse polarity protection circuits.

STPS3L40SY Quick Information

Product Type: Schottky Rectifier Diode
Canonical Name: STPS3L40SY Schottky Rectifier Diode
Subcategory: Single Diodes

STPS3L40SY Compliance

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

STPS3L40SY Estimated Pricing

Qty Low High
1+ $0.79 $0.79
10+ $0.49 $0.49
100+ $0.31 $0.31
500+ $0.24 $0.24
1,000+ $0.22 $0.22
2,500+ $0.19 $0.19
5,000+ $0.17 $0.17
10,000+ $0.15 $0.15

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

STPS3L40SY Features

  • 40V maximum reverse voltage rating.
  • 3A average rectified forward current.
  • Low forward voltage of 500 mV at 3A.
  • Fast recovery less than 500 ns.
  • Surface-mount SMC package (DO-214AB).

STPS3L40SY Applications

  • Used in power supply output rectification.
  • Ideal for DC-DC converter freewheeling.
  • Suitable for reverse polarity protection.
  • Applied in low-voltage high-frequency circuits.

STPS3L40SY FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage of the STPS3L40SY?

The maximum DC reverse voltage is 40 V.

What is the average forward current rating?

The average rectified forward current is 3 A.

What is the forward voltage drop at rated current?

The maximum forward voltage is 500 mV at a forward current of 3 A.

What is the recovery time of this diode?

The diode has fast recovery with a reverse recovery time equal to or less than 500 ns when the forward current exceeds 200 mA.

What package does the STPS3L40SY come in?

It is available in a surface-mount SMC package, also designated as DO-214AB.

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