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Infineon BTS442E2

Current Limit SW 1-IN 1-OUT -0.5V to 6V 21A Automotive 5-Pin(5+Tab) TO-220AB

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Brands: Infineon Technologies Corporation

Mfr.Part #: BTS442E2

Datasheet: BTS442E2 Datasheet (PDF)

Package/Case: TO-263-5

Product Type: Switch ICs

RoHS Status:

Stock Condition: 2360 pcs, New Original

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BTS442E2 General Description

The BTS442E2 is a high-side power switch manufactured by Infineon Technologies. High-side switches are commonly used in automotive and industrial applications for controlling the power supply to various loads.



Power Switch: The BTS442E2 is designed to function as a power switch, controlling the current flow on the high side (between the load and the power supply).

Load Voltage: The device is specified to handle a certain range of load voltages, typically in automotive applications.

Load Current: It is rated for a specific load current, indicating the maximum current it can handle in the ON state.

Input Voltage: The device operates with a specific input voltage, which is typically the supply voltage for the load.

Output Voltage: The output voltage is determined by the load, and the BTS442E2 allows or interrupts the flow of current to the load.

Integrated Protection Features: High-side switches often come with built-in protection features such as overcurrent protection (OCP), overtemperature protection (OTP), and short circuit protection.

Logic Inputs: The device is controlled by logic-level inputs, allowing for easy interfacing with microcontrollers or other digital control systems.

Diagnostic Outputs: Some high-side switches provide diagnostic outputs for fault indication.

Package Type: The BTS442E2 is available in a specific package type, such as TO-263.



High-side switches like BTS442E2 are commonly used in automotive applications, such as controlling loads in cars, trucks, and other vehicles.



Parameter Value Parameter Value
Manufacturer: Infineon Product Category: Power Switch ICs - Power Distribution
RoHS: Details Type: High Side
Number of Outputs: 1 Output Output Current: 21 A
Current Limit: 70 A On Resistance - Max: 18 mOhms
On Time - Max: 350 us Off Time - Max: 130 us
Operating Supply Voltage: 4.5 V to 42 V Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 150 C Mounting Style: Through Hole
Package / Case: TO-220-5 Series: High-Current PROFET
Qualification: AEC-Q100 Packaging: Tube
Brand: Infineon Technologies Pd - Power Dissipation: 167 W
Product: Power Switches Product Type: Power Switch ICs - Power Distribution
Factory Pack Quantity: 500 Subcategory: Switch ICs
Supply Voltage - Max: 42 V Supply Voltage - Min: 4.5 V
Tradename: PROFET Part # Aliases: SP000711526 BTS442E2XK BTS442E2BKSA1
Unit Weight: 0.105822 oz


Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

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Paypal Paypal charge 4.0% service fee.
Credit Card Credit Card charge 3.5% service fee.
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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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Equivalent Parts

For the BTS442E2 component, you may consider these replacement and alternative parts:

Part Number




Part Number:  BTS442E



Description:   (same manufacturer, similar specifications)

Part Number:  BTS5020-2EKA


Package:  SOP-14

Description:   INFINEON BTS5020-2EKA Power Load Switch, Smart6 Technology, High Side, 2Outputs, 28V, 32A, SOIC-14

Part Number:  IRF6665TRPBF



Description:   A Digital Audio 100V Single N-Channel HEXFET Power MOSFET in a DirectFET SH package rated at 19 amperes specifically designed for Class-D audio amplifier applications. Shipped in Tape and Reel only. Part is not available in bulk, TR is implied in par



Infineon Technologies Corporation



Infineon Technologies Corporation



Infineon Technologies Corporation



Infineon Technologies Corporation



Infineon Technologies Corporation



Infineon Technologies Corporation



Infineon Technologies Corporation



Infineon Technologies Corporation

Datasheet PDF

Preliminary Specification BTS442E2 PDF Download

Key points

  • The BTS442E2 chip is a high-side power switch used for controlling and protecting loads in automotive and industrial applications. it can handle up to 42v of supply voltage and a maximum current of 45a. the chip provides short-circuit and overheat protection, as well as diagnostic features such as overcurrent detection. it is commonly used in the automotive industry to control functions like lighting, motors, and heaters.
  • Equivalent

    The equivalent products of the BTS442E2 chip include the bts442d2, bts441t, and bts441t2. these are all power switch chips manufactured by infineon technologies.
  • Features

    The BTS442E2 is a smart high-side power switch developed by infineon. it is designed to control and protect high-current loads in automotive applications. the features include overcurrent and short-circuit protection, thermal shutdown, and input/output status feedback. it is also equipped with diagnostic features for quick troubleshooting and offers efficient power management.
  • Pinout

    The BTS442E2 is a smart high-side power switch designed for automotive applications. it has a pin count of 5 and functions as a protected switch for driving resistive, capacitive, or inductive loads.
  • Manufacturer

    Infineon technologies ag is the manufacturer of the BTS442E2. it is a german semiconductor manufacturing company specializing in power semiconductor solutions for various applications, including automotive, industrial, and consumer electronics.
  • Application Field

    The BTS442E2 is a power switch used for controlling resistive and inductive loads in automotive applications, such as seat and mirror adjustment, window lifts, wipers, and hvac systems. it can also be used in other industrial applications, where high current and voltage handling is required, like motor control and heating systems.
  • Package

    The package type of the BTS442E2 chip is d²pak. it is in the form of a surface mount package with a 5-pin configuration. the dimensions of the package are approximately 10mm x 12mm x 5mm.

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