MH281:   　　　　Low sensetivity CMOS unipolar switch

　　　　　　　　Green package certified by third party lab

MH 281 is an unipolar Hall effect sensor IC. It incorporates advanced chopper
stabilization technology to provide accurate and stable magnetic switch points. The design,
specifications and performance have been optimized for applications of solid state switches.
The output transistor will be switched on (BOP) in the presence of a sufficiently strong
South pole magnetic field facing the marked side of the package. Similarly, the output will be
switched off (BRP) in the presence of a weaker South field and remain off with “0” field.
The package type is in a lead (Pb)-free version was verified by third party organization.
Green package is available by customer’s option.
Features and Benefits
CMOS Hall IC Technology
Solid-State Reliability
Chopper stabilized amplifier stage
Unipolar, output switches with absolute value of South pole from magnet
Operation down to 3.0V
High Sensitivity for direct reed switch replacement applications
Small Size in TO- 92S and Sot 23 package.
100% tested at 125℃ for K Spec.
Custom sensitivity / Temperature selection are available.
Applications
Solid state switch
Limit switch
Current limit
Interrupter
Current sensing
Magnet proximity sensor for reed switch replacement

MH281是一颗单极霍尔开关，可用作电器的单向开关，

应用：饮料机，咖啡机，无绳电熨斗，烤面包机，健身器材电脑计程表，计数器，绣花机，计程车表，DVD, 游戏机等等