BTS3134NNT

Power Distribution Switches, Load Drivers Overview

The BTS3134NNT is a single-channel, low-side smart power switch from Infineon’s HITFET family, utilizing N-channel vertical SIPMOS technology. It operates with a maximum drain-source voltage of 42 V and supports a nominal load current of 3 A, with a short-circuit current limit of 18 A to 24 A depending on the specific variant documentation. The device features a typical on-resistance of 35 mΩ at 25°C and up to 100 mΩ at 150°C. It includes comprehensive embedded protection against over-temperature, over-voltage, and short circuits, with an avalanche energy capability of 500 mJ. Designed for automotive applications, it functions within a junction temperature range of -40°C to 150°C.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates N-channel vertical SIPMOS technology for efficient power switching in a compact surface-mount package.
• Provides robust embedded protection mechanisms including fixed current limiting, over-temperature shutdown, and over-voltage clamp.
• Features high surge capability with 500 mJ avalanche energy rating to withstand inductive load transients.

Power Distribution Switches, Load Drivers Applications

• Automotive lighting systems
• Solenoid and relay driver circuits
• General low-side power distribution

Power Distribution Switches, Load Drivers Procurement Notes

Verify the exact suffix (e.g., UMA1) against the required datasheet revision, as packaging and minor electrical tolerances may vary between tape-and-reel variants. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the selected part number matches the specific thermal and current specifications documented in the official Infineon product brief or datasheet for the intended automotive application.

Power Distribution Switches, Load Drivers Selection Notes

Select this component for applications requiring a single-channel low-side switch with integrated diagnostic and protection features. The 42 V rating suits standard 12 V automotive systems with transient voltage spikes. Consider the SOT-223-4 package for space-constrained PCB layouts. Evaluate the thermal performance based on the 43 W total dissipation capability and the specific ambient conditions of the enclosure.

Power Distribution Switches, Load Drivers Part Context

This device belongs to the Classic HITFET family of smart power switches designed for automotive environments. It replaces discrete MOSFETs and external protection components by integrating control logic, gate drivers, and protection circuits into a single monolithic chip. The series is engineered for high reliability and long-term availability in vehicle electronics.

Power Distribution Switches, Load Drivers Replacement Considerations

Check for direct substitutes within the same HITFET family with compatible pinouts and electrical ratings. Verify that any alternative device meets the same automotive qualification standards and offers equivalent avalanche energy handling capabilities.

Power Distribution Switches, Load Drivers FAQ

What is the maximum avalanche energy rating?

The device supports an avalanche energy capability of 500 mJ.

Does the BTS3134NNT include over-temperature protection?

Yes, it features embedded over-temperature shutdown protection.