Pushbutton Switches for Automotive and Harsh Environment

PREMO launches the Pushbutton Switches series, the most innovative for Automotive and harsh environments.

This innovation (Tiny button) is designed to lock and unlock a car in combination with PKE (Passive Keyless Entry System)/ PEPS (Passive Entry/Passive Start) for secure access to the vehicle.


PREMO, the leading manufacturer of RFID components, has announced the Pushbutton Switches series, PB-Sx, with superior electrical, mechanic, and waterproof performances that have been specially designed for vehicle access and other applications in harsh environments.

We explain the main considerations of this innovative PB-Sx series at the video below:

Premo's Pushbutton Switches

Many of the vehicles currently manufactured in the world feature a KES (keyless entry system) where LF antennas, pushbutton switches, and LEDs are commonly used and assembled in the door handle.

This PB-Sx series has been designed and manufactured following the European and International PREMO patents EP3726552A1 and WO2020212406A1, respectively, to provide a 100% sealed component against ingress of water and pressurized water (IP69K), extremely functional conditions (20k pulses underwater), and mechanical life endurance (reliability) >10E5 with a nominal push-force of 12 ± 3N.

And now we also provide a special interior design feature to avoid any breakage due to random assembly operations, where external shear forces can be applied against the door handle or even as a result of frictional impacts against a sidewall of the vehicle in narrow passages. This last innovation is patent pending.


Pushbutton switche                    pushbutton switches electrical diagram


This range of pushbuttons is completely configurable within each model in relation to the length of the cable, the terminals (based on the final connector) and the series resistor.



PREMO's fast mold-making technology allows easy customization of button shape and housing dimensions to fit into any existing or new door handle design. In-house plastic injection processes combined with 3Dprinting and fast-prototype equipment, provide custom-made switch samples in less than 4 weeks lead time.

There are several button/switch formats to choose from: Switches with an integrated rigid button on top, developed for exposed external locations; Switches with an internal rubber compound, used on hidden door latch handles; Switches with a chrome button, for exterior installations with visual aspect matching on metallic surfaces, and switches with Premo’s patented mechanical protection, increasing the robustness and mechanical performance up to limits never before achieved on a complex single tact-switch button design.


Find full specification details and buy online shop Premo's Pushbutton Switches here


PB-S2 - view PRODUCT

PB-S3 - view PRODUCT

>  Download German-Version of this technical article here.

About PREMO S.A.U.

PREMO is a Spain-based company engaged in the development, manufacture, and sale of electronic components, with a particular focus on the key technologies of the 4th industrial revolution: IoT, M2M, VRconnected and electric vehicles.

Our product portfolio includes RFID antennas (world leaders), AR / VR motion detection sensors, power transformers, inductors and chokes, current sensors, EMC filters, and PLC components. In addition to the wide range of standard products, PREMO also designs customer-specific solutions based on the latest technologies to make customer systems more efficient.

Over 1200 employees with 5 design centers and 3 production locations (Morocco, China & Vietnam), and an extensive sales network let PREMO have a global presence in more than 36 countries to meet our customers' specific needs.

More than 56 years being a preferred supplier because of our strong commitment to business excellence, engineering support, reliable delivery, and the quality of our products.

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