MH281是一颗单极霍尔开关，可用作电器的单向开关. MH281 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 Halogen Free version was verified by third party organization. Halogen Free package is available by customer’s option. MH281特点和优点 l CMOS霍尔IC技术 l 固态可靠性 l 斩波稳定放大器阶段 l 单极，输出开关与南极的磁铁从 l 工作电压可低至3.0V l 高灵敏度直接簧开关的替代应用 125 100％测试℃ 于K规格。 l 自定义灵敏度/温度选择可用。 应用 l 固态开关 l 限位开关 l 电流限制 l 断续器 l 电流检测 l 为磁簧开关更换磁铁接近传感器 Ordering Number MH281 Operation type Switch Temperature E/K Package UA/SO Voltage range 3V - 24V Output current 50mA Sensitivity(typ) 250(175) Gauss Status NOW note CMOS, Low sensitivity Unipolar switch(High Temp Testing) CMOS Hall IC Technology l Solid-State Reliability l Chopper stabilized amplifier stage l Unipolar, output switches with absolute value of South pole from magnet l Operation down to 3.0V l High Sensitivity for direct reed switch replacement applications l 100% tested at 125℃ for K Spec l Custom sensitivity / Temperature selection are availablel Products HOME > Products 深圳百盛 电子 企业QQ：21 郑生 : 4942 Ordering Number Operation type Temperature Package Voltage 电压范围 range Output 输出电流 Current Sensitivity 灵敏度 （典型值） (typ) Status MH181 Latch E/K UA/SO 3.5V - 20V 25mA 90 Gauss NOW MH182 Latch E/K UA/SO 3V - 24V 50mA 60 Gauss NOW MH187 Latch E/K/L UA/SO/SQ 3.5V-26V 50mA 60 Gauss NOW MH188 Latch E/K UA/SO 2.5V-24V 50mA 25 Gauss Now MH189 Latch E/K UA/SO 3V - 26V 12mA 40 Gauss NOW MH190 Latch E/K UA/SO 4V-30V 25mA 110 Gauss NOW MH192 Latch E/K UA/SO/SQ 1.65V-6V 25mA 60(30) Gauss NOW MH281 Switch E/K UA/SO 3V - 24V 50mA 250(175) Gauss NOW MH282 Switch E/K UA/SO 3V - 24V 50mA 100 Gauss NOW MH284 Switch E/K UA/SO 4.5V-30V 25mA 175 Gauss Sampling MH248 Switch E UA/SO/ST/SQ 2.5V - 3.5V 2mA 60 Gauss NOW MH250 Switch E SO/ST/SQ/UA 1.7V - 3.5V 5mA 40(30) Gauss NOW MH251 Switch E ST/SN/SQ/UA 1.65V - 3.5V 1mA 55(30) Gauss NOW MH252 Switch E VK/SN 1.65V - 3.5V 1mA 50(30) Gauss NOW MH253 Switch E/K UA/SO/SQ 2.5V - 6V 25mA 60(30) Gauss NOW MH481 Linear I UA/SG/SQ 3V - 6.5V 10mA 2mV/Gauss NOW MH276 Driver E VK 3.5V-20V 400mA 50/70/100 Gauss NOW MH276T Driver E VK 3.5V-20V 400mA 50/70/100 Gauss NOW MH477 Driver E VK 3.5V-20V 350mA 70/100/130 Gauss NOW MH477S Driver E VK 3.5V-20V 200mA 70/100/130 Gauss NOW MH381/381F/381R Driver E/K VK/VF/SF 2.5V-20V 600mA 40(20) Gauss NOW MH382/382F/382R Driver E/K VK/VF/SF 4.5V-30V 300mA 40(20) Gauss NOW

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