Infineon BTS4140NHUMA1 Power Switch IC

This power switch IC is a high-side switch designed for automotive environments to control multiple loads from a single input. It operates across a broad supply range and is intended for surface-mount applications where thermal endurance and compact packaging are required. The device integrates protection and switching functionality suited to vehicle electrical systems and similar low-voltage platforms.

• 60V maximum supply tolerates transient voltage events and spikes
• 4.9V minimum supply allows reliable low-voltage start-up
• 0.2A operating current supports moderate current loads per channel
• 3Ω Rds(on) reduces conduction losses under load
• 1.7W power rating enables sustained power dissipation
• 150°C maximum operating temperature handles elevated thermal conditions

• Suitable for automotive load switching with multiple outputs
• Used with electronic control modules requiring single-input control
• Ideal for surface-mount assemblies on compact PCBs
• Can be used for switching resistive and small inductive loads
• Used for aftermarket vehicle accessory distribution systems

The device provides five outputs operable from a single control input allowing centralised switching of several circuits.

It is supplied in a SOT-223 package designed for surface-mount assembly to save board space and simplify placement.

The component requires a four-pin footprint, so PCB landings and routing must accommodate signal and power connections accordingly.

Design for an ambient range down to -40°C and up to a device-rated maximum of 150°C to ensure operational integrity.