EDEN PRAIRIE, Minn.—May 29, 2025—NVE Corporation today announced the first parts in its new ADLxxx-20E line of ultraminiature Wafer-Level Chip-Scale Package (WLCSP) magnetic switch sensors. These new versions are designed for 3.3-volt logic power or battery supplies and feature an extended operating temperature range up to 125°C. The 0.65 by 0.65 millimeter (0.025 by 0.025 inch) package is ideal for space-constrained applications and provides unmatched spatial sensitivity and precision.

The company’s first line of WLCSP magnetic switch sensors, the AHLxxx-20E series parts, were introduced in late 2025. Those parts are designed for 1.5-volt battery operation and were limited to to 85°C.

Unique Products
Magnetic switches turn on when a magnetic field is applied and turn off when the field is removed. The applied field can be of either polarity, and the operate points are extremely stable over supply voltage and temperature. The open-drain outputs sink up to 100 microamps.

Key specifications of the new product line include:
   • 2.4 to 4.2 supply voltage for power supply or battery operation
   • –40 to 125°C temperature range
   • Magnetic operate points as low as one millitesla
   • Omnipolar
   • 35 microamp typical supply current
   • Ultraminiature 0.65 x 0.65 mm four-pad solder-bumped WLCSP

Breakout Boards
Convenient 0.8 x 0.4 inch (21 x 10 mm) breakout boards are available, featuring pre-soldered WLCSP sensors, 0.1" headers, and 1 mm-pitch card-edge connectors.

Two Switch Points
Models with one millitesla and 2.8 millitesla operate points are currently in stock for immediate delivery. Breakout boards are also available. Additional versions are planned for future release.
 
More Information
A datasheet including the new WLCSPs is available. Visit NVE’s website for pricing and detailed technical information.

About NVE
NVE is a leader in the practical commercialization of spintronics, a nanotechnology that relies on electron spin rather than electron charge to acquire, store, and transmit information. The company manufactures high-performance spintronic products including sensors and couplers that are used to acquire and transmit data.

Statements used in this announcement that relate to future plans, events, or performance are forward-looking statements that are subject to certain risks and uncertainties including, among others the risk factors listed from time to time in our filings with the SEC, including our Annual Report on Form 10-K and other reports filed with the SEC.