Mfr Part #:

BTF3125EJ

The Infineon Technologies BTF3125EJ is a single-channel smart low-side power switch designed for 12V automotive and industrial applications. It offers integrated protection functions and supports various load types.

✓ Total Stock: 6,687 pcs

$ Price Range: $1.87

BTF3125EJ Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Rayichip ✓ Non-Authorised Inventory information	5,727 pcs On Request	5727 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Xingangxin ✓ Non-Authorised Inventory information	960 pcs On Request	960 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

BTF3125EJ Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Infineon Technologies
Maximum Input Voltage	5.5 V
Mounting Type	Surface Mount
Operating Voltage	3-28 V

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BTF3125EJ Description

Short technical summary and product information.

The BTF3125EJ from Infineon Technologies is a 125 mΩ single-channel smart low-side power switch housed in a PG-TDSO-8-31 package. It is designed for 12V automotive and industrial applications, offering integrated protective functions. The device is automotive qualified according to AEC-Q100/101.

Key electrical specifications include an operating voltage range of 3-28V, a maximum battery voltage of 40V, and a supply voltage range of 3.0-5.5V. It features a nominal load current of 2A and a current limitation of 5A. The switch is compatible with 3.3V and 5V logic inputs and supports PWM switching up to 20kHz.

Protection features include short circuit to battery, over-temperature shutdown with auto-restart, and active clamp over-voltage protection. The device is suitable for resistive, inductive, and capacitive loads, replacing electromechanical relays and fuses. It is also a Green Product, compliant with RoHS standards.

BTF3125EJ Quick Information

Product Type: Smart Low-Side Power Switch

Series: +12V

Canonical Name: BTF3125EJ Smart Low-Side Power Switch

Subcategory: Low-Side Switches

BTF3125EJ Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BTF3125EJ Estimated Pricing

Qty	Low	High
1+	$1.87	$1.87

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

BTF3125EJ Features

Single channel smart low-side power switch.
Automotive qualified and optimized for 12V.
Integrated over-temperature and short-circuit protection.
3.3V and 5V compatible logic input.
PG-TDSO-8-31 package for surface mounting.

BTF3125EJ Applications

Suitable for resistive loads.
Suitable for inductive loads.
Suitable for capacitive loads.
Replaces electromechanical relays.
Used in automotive applications.

BTF3125EJ FAQs

6 frequently asked questions generated from this part’s specifications.

What is the operating voltage range for the BTF3125EJ?

The operating voltage range is 3-28V.

What is the nominal load current for this smart power switch?

The nominal load current is 2A.

What package type is the BTF3125EJ supplied in?

The BTF3125EJ is supplied in a PG-TDSO-8-31 package.

Does the BTF3125EJ have over-temperature protection?

Yes, the BTF3125EJ has over-temperature shutdown with auto-restart.

Is the BTF3125EJ RoHS compliant?

The RoHS Status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the BTF3125EJ?

The Moisture Sensitivity Level (MSL) is 1 Unlimited.