STPS640CSFY The STPS640CSFY is a dual Schottky rectifier diode from STMicroelectronics, rated for 40V reverse voltage and 3A average rectified current per diode (6A total). It features a low forward voltage of 490mV at 3A and is housed in a TO-277A surface mount package.
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STPS640CSFY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STPS640CSFY is a dual Schottky rectifier diode from STMicroelectronics, rated for 40V reverse voltage and 3A average rectified current per diode (6A total). It features a low forward voltage of 490mV at 3A and is housed in a TO-277A surface mount package.
Total Stock: 18,000 pcs
$ Price Range: $0.21 - $1.16

STPS640CSFY Available from 1 distributor

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STPS640CSFY Specifications Quick View

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

STPS640CSFY Description

Short technical summary and product information.

The STPS640CSFY is a dual Schottky rectifier diode from STMicroelectronics, designed for low voltage, high frequency rectification. Each diode is rated for 40V reverse voltage and 3A average rectified current, providing a total current capability of 6A in a compact dual configuration. The forward voltage is typically 490mV at 3A, enabling low power dissipation and improved efficiency.

 

The Schottky barrier technology ensures fast switching with negligible reverse recovery time, making it suitable for high-frequency applications. The device operates over a temperature range of -40°C to 150°C, ensuring reliability in harsh environments.

 

The diode is housed in a TO-277A (SMPC) surface mount package, which offers a low profile and excellent thermal performance. It is compatible with automated assembly processes. Compliance data indicates RoHS3 compliance (unverified), MSL 1, and REACH unaffected, but these should be confirmed from official sources.

 

Typical applications include power supply rectification, freewheeling diodes, and polarity protection circuits where low forward voltage and fast switching are critical.

STPS640CSFY Quick Information

Product Type: Schottky Rectifier Diode
Canonical Name: STPS640CSFY - Schottky Rectifier Diode, Dual Common Cathode, 40V, 3A per Diode, TO-277A
Subcategory: Rectifier Diode

STPS640CSFY Compliance

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

STPS640CSFY Estimated Pricing

Qty Low High
1+ $1.16 $1.16
10+ $0.71 $0.71
100+ $0.47 $0.47
500+ $0.37 $0.37
1,000+ $0.32 $0.32
2,500+ $0.29 $0.29
6,000+ $0.21 $0.21
24,000+ $0.21 $0.21

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

STPS640CSFY Features

  • Dual Schottky rectifier diode configuration.
  • Rated for 40V reverse voltage.
  • 3A average rectified current per diode.
  • Low forward voltage of 490mV at 3A.
  • Surface mount TO-277A package.

STPS640CSFY Applications

  • Used in low voltage power rectification.
  • Suitable for freewheeling diode circuits.
  • Ideal for polarity protection applications.
  • Designed for high frequency switching.

STPS640CSFY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse voltage rating of the STPS640CSFY?

40V.

What is the average rectified current per diode?

3A per diode, total 6A for dual configuration.

What is the forward voltage at 3A?

Typically 490mV.

What is the package type?

TO-277A (SMPC), surface mount.

What is the operating temperature range?

-40°C to 150°C.

Is the STPS640CSFY RoHS compliant?

It is listed as RoHS3 compliant, but this is unverified.

What is the mounting type?

Surface mount.

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