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BTS70121EPAXUMA1 The Infineon Technologies BTS70121EPAXUMA1 is a PROFET® Smart High-Side Power Switch. It offers a nominal load current of 8.5A and features integrated protection and diagnostic functions.
Mfr Part #:

BTS70121EPAXUMA1

Available from 2 distributors
Mfr Name: Infineon Technologies
Infineon Technologies
The Infineon Technologies BTS70121EPAXUMA1 is a PROFET® Smart High-Side Power Switch. It offers a nominal load current of 8.5A and features integrated protection and diagnostic functions.
✓ Total Stock: 12,483 pcs
$ Price Range: $0.32

BTS70121EPAXUMA1 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
10,000 pcs
On Request
10000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Smaxon Electronics ✓
Non-Authorised Inventory information
2,483 pcs
On Request
2483 pcs On Request 1 On Request On Request 21+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BTS70121EPAXUMA1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Fault Protection
Features
Input Type
Interface
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Ratio
Rds On (Typ)
Supplier Device Package
Switch Type
Voltage
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BTS70121EPAXUMA1 Description

Short technical summary and product information.

The BTS70121EPAXUMA1 from Infineon Technologies is a PROFET™ +2 12V Smart High-Side Power Switch. This device is designed for applications requiring robust power control and protection, suitable for resistive, inductive, and capacitive loads.

 

Key electrical specifications include a nominal load current of 8.5A at 85°C ambient temperature and a maximum ON-state resistance of 21.5 mΩ at 150°C. It operates within a voltage range of 4.1V to 28V and includes features like overcurrent protection, undervoltage shutdown, and overvoltage protection with external components.

 

This switch provides diagnostic capabilities such as proportional load current sense and open load detection. It is qualified for automotive applications according to AEC-Q100 Grade 1.

 

The BTS70121EPAXUMA1 is available in a PG-TSDSO-14-22 package, designed for surface mounting. Its features include ReverseON for low power dissipation in reverse polarity conditions and InverseON for switch ON capability during inverse current conditions.

BTS70121EPAXUMA1 Quick Information

Product Type: Smart High-Side Power Switch
Series: PROFET®
Canonical Name: BTS7012-1EPA Smart High-Side Power Switch
Subcategory: Smart High-Side Power Switch

BTS70121EPAXUMA1 Compliance

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

BTS70121EPAXUMA1 Estimated Pricing

Qty Low High
1+ $0.32 $0.32

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

BTS70121EPAXUMA1 Features

  • Smart High-Side Power Switch with diagnosis.
  • Handles 8.5A nominal load current.
  • Low ON-resistance of 11.5mΩ typical.
  • Integrated overcurrent and thermal protection.
  • Qualified for automotive applications (AEC-Q100 Grade 1).

BTS70121EPAXUMA1 Applications

  • Drives high inrush current loads.
  • Replaces electromechanical relays and fuses.
  • Suitable for automotive lighting applications.
  • Controls resistive and inductive loads.
  • Used in 12V power distribution systems.

BTS70121EPAXUMA1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the BTS70121EPAXUMA1?

The device operates with a minimum voltage of 4.1 V (switch ON) and 3.1 V (cranking), and a maximum voltage of 28 V.

What package is the BTS70121EPAXUMA1 available in?

14-TSSOP (0.154", 3.90mm Width) Exposed Pad, also known as PG-TSDSO-14-22, surface mount.

What is the operating temperature range?

-40°C to 150°C junction temperature.

What is the maximum output current?

8.5 A at 85°C ambient.

What fault protections does the device include?

Current limiting (fixed), open load detection, over temperature, over voltage, and undervoltage lockout (UVLO).

What is the typical on-resistance?

Typical 11.5 mOhm, maximum 21.5 mOhm at 150°C junction.

What is the control interface?

On/Off control, non-inverting input.

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