Littelfuse expands NanoT IP67-rated tactile switch series

21st November 2024

Paige West

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Littelfuse, Inc. announced the expansion of its NanoT tactile switch product line. The series, featuring miniature, surface-mounted, waterproof tactile switches, now includes new operational force options and top- and side-actuated models, further enhancing its application in next-generation smart wearables, wireless headsets, portable medical devices, and IoT systems.

Design engineers require ever-smaller switch interfaces as the market demand for smaller, high-performance electronics grows – driven by innovations in healthcare, wearables, and battery-powered IoT devices. The expanded NanoT series is the smallest tactile switch solution on the market, providing design flexibility for engineers to integrate additional functionality or reduce printed circuit board (PCB) size.

Ideal applications include:

Smart wearables
Health monitoring devices
Hearing aids
Wireless headsets
Portable IoT devices

"The NanoT switch combines space efficiency with high reliability, featuring short actuation travel, IP67-rated durability, and a wide operating temperature range from -40 to 85°C," said Junbao Chen, Design Centre Manager, Electronics Business Unit at Littelfuse. "Its ultra-compact size and ease of PCB/FPC integration make it ideal for confined spaces, while the haptic feedback ensures a satisfying user experience, optimising designs and improving product quality."

Key benefits of the NanoT Series:

Space-saving design: Ultra-compact size allows designers to incorporate more functionality or reduce PCB size

Side-actuated model (2.2 x 1.70 x 1.65mm) saves 35% space.
Top-actuated model (2.1 x 1.65 x 0.55mm) saves 20% space.

Customisable actuation forces: Available in 100, 160, and 240 gf options, catering to different application needs

100gf: Ideal for high-frequency use, reducing user fatigue.
160 gf: Balanced tactile feedback for general applications.
240 gf: Firm activation

Mounting options: PIP or SMT edge-mount versions offer superior resistance to shock and shear, extending equipment life and reducing the need for extra protective layers

Durability: Life cycles ranging from 200K to 300K ensure long-term reliability and reduce maintenance costs
IP67 rating: Dust-tight and waterproof, ensuring reliability in challenging environments

The expanded NanoT switch series delivers the performance, durability, and compact design required for today’s cutting-edge electronics.

Availability

The NanoT are available in tape and reel format in quantities of 8,000 pieces for the top actuated version and 7,500 for the side actuated version. Place sample requests through authorised Littelfuse distributors worldwide.