CH93

DESCRIPTION 

The CH93S, CH93E and CH93T are small, versatile digital Hall-effect devices that are operated by the magnetic 

field from a permanent magnet or an electromagnet. 

This unipolar sensors are designed to meet the requirements of a wide range of potential applications. These 

economical unipolar sensors are well suited for simple, high-volume, cost-sensitive position and motion sensing 

applications. 

The 3.3Vdc to 30 Vdc supply voltage range allows this device to be used in very wide voltage applications. 

These sensors are available in two package styles: the CH93S in the subminiature SOT-23-3L surface mount 

package, the CH93E in the subminiature SOT-89-3L surface mount package, the CH93T is available in the leaded, 

flat TO-92-style package. 

The CH93S and CH93E are available on tape and reel (CH93S 3000 units per reel, CH93E 1000 units per reel), 

the CH93T is available in a bulk package (1000 units per bag).

FEATURES and FUNCTIONAL DIAGRAM

 Unipolar respond to a single pole: North (CH93S) or South 

(CH93T and CH93E), making these products well-suited for shift 

selectors, wiper end/home position, door ajar/open, and vaneinterrupt systems etc. 

 Enhanced sensitivity: will operate from Brp 60 Gauss to Bop 90 

Gauss typical with very good temperature-stable and stressresistant, allowing the use of smaller, potentially lower-cost 

magnets or high robust application 

 Subminiature, SOT-23-3L(CH93S) or SOT-89-3L(CH93E) 

surface mount package supplied on tape and reel allows for a 

compact design with automated component placement, helping 

to reduce manufacturing costs 

 Small, leaded, flat, TO-92S package (CH93T) allows for a 

compact PCB layout 

 Wide operating voltage range of 3.3V to 30V makes these 

sensors useable in a wide range of applications 

 Built-in reverse voltage capability enhances the protection of the 

sensor and the circuits with which it is used 

 Robust design: will operate up to 150 °C 

 RoHS-compliant material meets directive 2002/95 

APPLICATIONS

Automotive/ Industrial 

/Commercial: 

-BLDC 

-Contactless Switch 

-Position detection 

-Door or lid closure detection 

-Speed and RPM sensing 

-Flow rate sensing 

-Damper or valve position control 

in HVAC equipment 

-Robotic control 

-Float-based fluid level sensing 

- Etc.