The LF21173TMR and LF21177TMR omnipolar magnetic switches from Littelfuse combine Tunneling Magnetoresistance (TMR) sensing with CMOS output circuitry in a compact LGA4 package for low-power, space-constrained designs. Operating across a 1.8 V–5.5 V supply range, the switches offer magnetic sensitivity from 9 to 30 Gauss and omnipolar operation, supporting applications such as smart meters, electronic […]
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Switches detect omnipolar or bipolar magnetic fields
Littelfuse, Inc. announced the launch of two next-generation Tunneling Magnetoresistance (TMR) magnetic switches: the LF21112TMR omnipolar switch and the LF11215TMR bipolar switch. These compact devices offer exceptional magnetic sensitivity, thermal stability, and ultra-low power consumption—providing energy-efficient sensing solutions for smart meters, wearables, consumer electronics, industrial automation, and home security systems. (View the video.) By integrating TMR technology with ultra-low-power CMOS […]
Tactile switches provide SPDT contacts with normally open and closed options
Littelfuse, Inc. has expanded its K5V Series illuminated tactile switch line with the release of the K5V4 models, available in Gull Wing (GH) and 2.1 mm Pin-in-Paste (PIP) versions. Both versions are compatible with reflow soldering, making them suitable for manufacturers shifting from wave soldering to surface-mount assembly. The K5V4 switches are constructed with polyarylate […]
Magnetic angle sensors available in TSSOP8 and LGA8L packages
Littelfuse, Inc. announced the launch of two new TMR-based magnetic angle sensors, the LF53466 and LF53464 – designed to deliver high-precision 0–360° angular measurement in harsh environments with minimal thermal drift. (View the video.) Both sensors utilize Tunneling Magnetoresistance (TMR) technology in a dual push-pull Wheatstone bridge configuration, each featuring four high-sensitivity sensing elements, which enable accurate angle detection along the X […]
Surface-mount switches maintain performance across automotive to medical applications
Littelfuse, Inc. has introduced the KSC XA Series Soft Sound Tactile Switches designed for surface-mount technology applications requiring quiet operation with reliable tactile feedback. The switches feature an extended cage for potting compatibility and high actuation force options for deliberate operation, making them suitable for automotive, medical, industrial, and premium consumer electronics applications. The KSC […]
Tactile switches offer 200,000 cycle lifespan
Littelfuse, Inc. offers the C&K Switches EL2 Series Tactile Switches, designed for general-purpose switching applications. These sealed surface-mount technology (SMT) tactile switches are available in heights of 3.5 and 5.2 millimeters, with actuation forces of 2 newtons and 3.5 newtons. The EL2 Series features IP67 sealing, protecting against dust and water ingress. The switches utilize […]
7 mm reed switches designed for industrial and security applications
Littelfuse, Inc. offers the MITI-7L Reed Switch Series, engineered for applications that demand long operational life and consistent performance. These reed switches have dimensions of 7 mm x 1.8 mm (0.276″ x 0.071″) and can switch up to 10 W. Key specifications of the series include a sensitivity range of 6-25 AT, an insulation resistance […]
Switch series design refined with Electrical Height parameter
Littelfuse, Inc. offers the C&K Switches KSC2 Sealed Tactile Switch product line with an Electrical Height enhancement. This surface-mounted, waterproof tactile switch series features an IP67-rated, 3.5 mm high momentary-action design with a soft actuator. The KSC2 series is available in several models, providing options for various operating forces and electrical lifespans to suit different […]
Reed switch line expanded to include 9.0 mm x 2.5 mm x 2.4 mm option
Littelfuse, Inc. offers the 59177 Series overmolded reed switch, engineered for space-constrained applications. This switch has dimensions of 9.0 mm x 2.5 mm x 2.4 mm (0.354″ x 0.098” x 0.094″) and is capable of handling up to 170 Vdc or 0.25 A at up to 10 W. Designed to operate without power consumption, the […]
TMR sensors improve sensitivity and power efficiency
Littelfuse, Inc. announced the release of its highly anticipated 54100 and 54140 miniature Tunnel Magneto-Resistance (TMR) effect sensors. These sensors offer unmatched sensitivity and power efficiency, revolutionizing the magnetic sensing industry. The key differentiator of the 54100/54140 sensors is their remarkable sensitivity and 100x improvement in power efficiency compared to Hall Effect sensors. These sensors offer […]
