Part Number: STPS40170CT

Manufacturer: STMicroelectronics

Description: DIODE ARRAY SCHOTTKY 170V TO220

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of STPS40170CT

Datasheet  STPS40170CT datasheet
Category Discrete Semiconductor Products
Family Diodes – Rectifiers – Arrays
Manufacturer STMicroelectronics
Packaging Tube
Diode Configuration 1 Pair Common Cathode
Diode Type Schottky
Voltage – DC Reverse (Vr) (Max) 170V
Current – Average Rectified (Io) (per Diode) 20A
Voltage – Forward (Vf) (Max) @ If 920mV @ 20A
Speed Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)
Current – Reverse Leakage @ Vr 30μA @ 170V
Mounting Type Through Hole
Package / Case TO-220-3
Supplier Device Package TO-220AB


The STPS40170CT is an array of diodes that works well and reliably in a wide range of electronic uses. This through-hole diode array is a popular choice among engineers and hobbyists alike because it has a shared cathode and great specs. In this detailed guide, we will look at the STPS40170CT’s most important features, technical specs, uses, and installation instructions.

Understanding the STPS40170CT

The STPS40170CT is a diode array that offers superior performance and versatility in a wide range of electronic applications. It features a common cathode configuration, which plays a significant role in its operation and functionality. Let’s delve deeper into understanding this diode array and its key characteristics.

Overview of the Diode Array and Common Cathode Configuration

The STPS40170CT is a diode array consisting of two diodes in a common cathode configuration. This means that the cathodes of both diodes are internally connected, while the anodes are separate. The common cathode design allows for easy integration into circuits and provides certain advantages in terms of circuit design and application flexibility.

Significance of Common Cathode Design

The common cathode configuration offers several benefits:

Simplified Circuit Design:

With the cathodes connected, the common cathode design reduces the number of external connections required in a circuit. This simplifies the overall design and improves ease of implementation.

Balanced Voltage Sharing:

In applications where voltage is shared between the diodes, the common cathode design ensures balanced voltage distribution across the diodes, promoting equal current sharing.

Efficient Heat Dissipation

The common cathode configuration allows for improved heat dissipation as the heat generated by each diode can be dissipated through a common heat sink or PCB area, enhancing overall thermal management.

Technical Specifications and Ratings

The STPS40170CT diode array exhibits the following technical specifications and ratings: a. Voltage Rating: The diode array has a maximum voltage rating of 170V, making it suitable for applications requiring high voltage rectification and protection. b. Current Rating: It offers a maximum continuous forward current of 20A, allowing it to handle high-current applications with ease.

● Package Type

The STPS40170CT is available in a through-hole TO-220-3 package, which provides mechanical stability and ease of installation.

● Forward Voltage Drop

The diode array has a low forward voltage drop, minimizing power losses and improving efficiency in circuits. e. Reverse Recovery Time: The STPS40170CT features a fast reverse recovery time, reducing switching losses and enabling high-speed operation in applications.

Understanding these technical specifications and ratings will help in determining the suitability of the STPS40170CT for specific circuit requirements.

STPS40170CT Key Features and Benefits

The STPS40170CT diode array is famous in electronic circuits because it has a lot of great features. Let’s look at some of its most important parts and the benefits they bring:

  • High Voltage Rating: The STPS40170CT is good for uses that need strong voltage rectification and protection. Its maximum voltage rating is 170V. It can handle high power levels well, so it can work reliably even in tough situations.
  • High Current: The diode array can handle a maximum continuous forward current of 20A, which makes it a good choice for uses that need both a lot of power and a lot of current. It makes sure the machine works well and reduces the chance that the current will get too high or the machine will break.
  • Common Cathode Configuration: The STPS40170CT’s common cathode design simplifies circuit integration, reduces external connections, and allows balanced voltage sharing between the diodes. This arrangement makes it easier to build circuits, makes them more flexible, and makes sure they work at their best.
  • Low Forward Voltage Drop: The diode array has a low forward voltage drop, which means that it loses less power and works better. This feature is especially useful in situations where energy efficiency is important, because it helps cut down on wasted power and improves the general performance of the system.
  • Fast Reverse Recovery Time: The STPS40170CT has a fast reverse recovery time, which lets it switch quickly and run at high speed in applications that need a quick diode reaction. This quality helps to cut down on switching costs and make the system run more efficiently. The STPS40170CT is known for how well it works and how long it lasts. It is made to work well in a variety of environments, so it will keep working well for a long time.
  • Efficient Heat Dissipation: The shared cathode configuration of the diode array makes it easy to get rid of heat. Each diode’s heat can be released through a shared heat sink or PCB area. This reduces thermal problems and makes the circuit more reliable as a whole.
  • Versatile Uses: The STPS40170CT can be used in many different kinds of electrical systems, such as power supplies, rectifiers, and diodes that don’t need to be turned on or off. It can be used in automotive, industrial, and consumer gadgets, making it versatile and easy to use in many different fields.
  • Better safety for the circuit: The diode array works well to protect the circuit from voltage transients, reverse voltage spikes, and overcurrent situations. It protects sensitive parts and keeps them from getting broken, so the whole system will last longer and work well.

Using the key features and benefits of the STPS40170CT diode array, engineers and designers can make strong and efficient electronic circuits that work well, use less energy, and defend better.

STPS40170CT Applications

The STPS40170CT diode array works well in many situations, such as power sources, rectifiers, and diodes that allow current to flow in both directions. It is used in technology for cars, factories, and home use. Its high voltage rate, high current capacity, and low forward voltage drop make it good for delivering power reliably and converting energy efficiently. The diode array is reliable and protects the circuit because it is strong and has a fast backward recovery time.

Frequently Asked Questions (FAQs)

What is the maximum voltage rating of the STPS40170CT?

  • The STPS40170CT has a maximum voltage rating of 170V.

What is the maximum continuous forward current it can handle?

  • The diode array can handle a maximum continuous forward current of 20A.

Can I use the STPS40170CT in automotive applications?

  • Yes, the STPS40170CT is suitable for automotive applications, including voltage regulators, lighting control, battery management, and engine control units (ECUs).

How do I ensure proper installation of the STPS40170CT?

  • Follow the installation guidelines provided by the manufacturer. Pay attention to proper PCB layout, thermal management, and soldering techniques.

Are there any specific safety precautions to consider?

  • Always handle the diode array with appropriate ESD precautions. Ensure that the circuit is powered off before making any connections or modifications.


Discover the STPS40170CT diode array’s unmatched potential, a flexible and high-performance part that can be used in a variety of electronic systems. To fully utilize the potential of this unique diode array, delve into its exceptional qualities, examine the complex technical specifications, and accept the essential circuit design concerns.

The STPS40170CT emerges as an important asset for your electronic projects, increasing their performance and assuring the utmost protection, with unmatched reliability, astonishing efficiency, and formidable robustness.

Please get in touch with us at ICRFQ, the top distributor of electronic components in China, for more information and to place an order. Our devoted team is prepared to help you find the best product at a competitive price so you may achieve your electronic goals. Contact us right away to take control of your concepts!

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