HomePress ReleasesDigital Magnetic Sensor Having High Sensitivity And Low Power Intake

Digital Magnetic Sensor Having High Sensitivity And Low Power Intake

Based on Tunnel magnetoresistance (TMR), the small-sized magnetic sensor features high operating frequency

Coto Technology has announced the release of its new RedRock RR122-1E73-511 / 512 wafer-based TMR (Tunneling Magnetoresistance) digital omnipolar sensor.

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The RR122-1E73 TMR sensor features an operating frequency of 2500 Hz, a voltage supply range of +1.7V to +5.5V and an extremely high magnetic sensitivity (15 G or 1.5 mT) in an ultra-miniature package size at a highly-competitive price. 

Requiring only 11 microamperes of current, the RR122-1E73 Series TMR sensor is ideal for use within products ranging from small battery-powered electronics to industrial machinery. Specific applications could include proximity detection, rotary sensing, utility meters, portable rechargeable medical devices, motor controllers and consumer electronics.

Available in either a tiny 1.4 x 1.4 x .45mm LGA-4 device package or an industry-standard SOT-23-3 package, the RedRock RR122-1E73 fits well into space-constrained applications. The operating temperature ranges from -40 degrees Celsius up to +125 degrees Celsius, although the part is also readily available in a low-temperature version (-40 degrees Celsius up to +85 degrees Celsius).

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The Coto Technology RedRock RR122-1E73-511 / 512 TMR Digital Magnetic Sensor is immediately available through Coto’s distributors.


Vinay Prabhakar Minj
Vinay Prabhakar Minj
Vinay Prabhakar Minj is a technology writer and science communication specialist with a Master’s degree in Communication of Science and Innovation (Science Communication). He is a prolific contributor to Electronics For You, where he has authored over 1,000 articles covering electronics, semiconductors, embedded systems, IoT, and emerging technologies. With a strong foundation in science communication, Vinay focuses on translating complex engineering concepts into clear, accessible, and application-oriented content. His work spans topics such as sensor technologies, chip design, wireless systems, and next-generation electronics, making advanced innovations easier to understand for engineers, students, and industry professionals. Through his extensive contributions, he has built a reputation for delivering reliable, well-researched, and practical insights that help readers stay updated with the rapidly evolving electronics ecosystem. His writing bridges the gap between technical depth and real-world usability, supporting both learning and decision-making in the field.

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