WMSIC Electronic Components

ALLEGRO A1212LUA-T A1212LUA

ModelA1212LUA-T
PackageTO-92S
BrandALLEGRO
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ALLEGRO A1212LUA-T
Type
ALLEGRO
Unit
Electronic Component
Minimum package
500 袋

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ALLEGRO
Electronic Component
A1212LUA-T
Electronic Component
1
Package
TO-92S
Electronic Component
Hall Switch
Electronic Component
0.136g
Electronic Component
1
Electronic Component
BM0264533315
Operating Temperature
40℃~+150℃
Operating Voltage
3.8V~24V
Operating Current
4.1mA
(Gs)
10.7mT
(Gs)
11.7mT
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

A1212LUA-T 产品概述

一、产品简介

A1212LUA-T 是美国 ALLEGRO(埃戈罗)推出的一款磁性锁存开关(MAGNETIC SWITCH LATCH),采用三脚 SIP 封装并以 TO-92S 形式提供。该器件为双稳态霍尔锁存器件,对外加磁场呈现明确的置位与复位门限,适合需要记忆磁状态且在断磁后保持输出的低功耗电磁检测场合。

二、主要技术参数

  • 工作电压(VCC):3.8 V ~ 24 V
  • 工作电流:典型 4.1 mA(静态电流,实际视负载与温度略有变化)
  • 置位(工作点,Bop):10.7 mT
  • 复位(释放点,Brp):-11.7 mT(负值表明为双极性锁存器件,需要相反磁极复位)
  • 工作温度范围:-40 ℃ ~ +150 ℃
  • 封装:TO-92S(3 引脚,直插)

三、特性与优势

  • 工作电压范围宽:3.8 ~ 24 V,兼容大多数低压系统与 12 V、24 V 应用环境。
  • 低静态功耗:约 4.1 mA,有利于电池供电或低功耗系统。
  • 双极性锁存行为:具有明确的置位与反向复位门限,适合需要“记忆”磁场状态的应用(如门磁检测、位置保持等)。
  • 抗温漂能力强:-40 ℃ 至 +150 ℃ 的工作温度覆盖工业级应用需求。
  • 可靠的封装形式:TO-92S 直插封装便于手工焊接与快速原型验证。

四、典型应用场景

  • 安全和门窗磁感检测锁存报警系统;
  • 位置检测与限位开关(需要保持最后状态的场合);
  • 家用电器按键/开关状态保持;
  • 电力/工业控制中对磁场状态记忆的传感接口;
  • 汽车电子中非连续供电情况下的磁状态检测(需验证汽车相关资格时序)。

五、封装与使用注意事项

  • TO-92S 直插封装便于电路板安装,但在高速或高振动环境需注意机械固定与应力释放。
  • 由于为磁敏器件,请避免靠近强磁干扰源或引入未屏蔽的磁体,以免误触发或漂移;安装时考虑磁路方向与器件正负极性对应。
  • 推荐在电源端加适当去耦电容以抑制瞬态噪声。
  • 器件受静电敏感,应在生产与装配过程中采取 ESD 防护措施。
  • 在高温环境下长期使用时应参照实际应用做热评估,确保结温不超过规格上限。

六、选型与采购建议

选择 A1212LUA-T 时,请依据所需置位/复位门限、工作电压与温度范围确认适配性;若系统需软复位或不同灵敏度,可参考 ALLEGRO 的其他系列或与供应商确认批次参数容差。采购时注意核对厂家型号与封装(TO-92S)以避免替代件差异。

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