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ALLEGRO A1101EUA-T A1101EUA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
17
specifications
Core information
- Product name
- ALLEGRO A1101EUA-T
- Type
- ALLEGRO
- Minimum package
- 500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ALLEGRO
- Electronic Component
- A1101EUA-T
- Electronic Component
- 1
- Package
- SIP-3
- Electronic Component
- Hall Switch
- Electronic Component
- 0.38g
- Electronic Component
- 1
- Electronic Component
- BM0258749083
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 3.8V~24V
- Operating Current
- 4.1mA
- Electronic Component
- Electronic Component
- Electronic Component
- 500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
A1101EUA-T 产品概述
一、产品简介
A1101EUA-T 是美国 ALLEGRO（埃戈罗）推出的一款连续时间单极霍尔效应开关（Hall-effect switch）。器件以小型三引脚直插封装（SIP-3）提供，设计用于在磁场存在时产生可靠的数字开关响应，适合工业与消费类位置、速度及接近检测应用。该器件具备宽工作电压与工业级温度范围，具有长期可靠性与抗环境干扰能力。
二、主要电气参数
- 工作电压：3.8 V ～ 24 V
- 工作电流：典型 4.1 mA（建议按数据手册核对最大值）
- 工作温度：-40 ℃ ～ +85 ℃
- 操作磁阈值（Bop）：30 ～ 175 高斯（Gauss）——为单极工作点范围
- 功能描述：连续时间单极霍尔开关，输出为开关型数字信号（具体输出结构请参照厂商数据手册）
三、封装与引脚说明
A1101EUA-T 常见封装为 SIP-3（三引脚单列直插），便于通孔安装与手工焊接。常见引脚排列为 VCC、GND、OUT（或类似顺序），但实际引脚定义须以 ALLEGRO 官方封装图与引脚说明为准。在电路板设计时，建议预留适当的机械固定与散热区域以提高可靠性。
四、设计与使用建议
- 去耦与供电：在 VCC 与 GND 之间并联 0.1 μF 陶瓷去耦电容，靠近器件引脚布局，以抑制瞬态噪声。
- 上拉/输出：多数霍尔开关采用开漏/开集电极输出，实际应用中通常需外接上拉电阻（常见 4.7k–100kΩ，典型 10kΩ）；若为推挽输出则无需上拉，请确认器件类型。
- 磁铁选型：选择使工作磁场高于器件 Bop 的磁铁，并留出裕量以应对装配偏差与温漂；单极器件对某一极性敏感，应按磁极方向布置。
- 布局与屏蔽：避免将器件放在强交变磁场或大电流导线上，必要时增加屏蔽或改变走线以减小干扰。
- 温度与漂移：高温时开关点可能移动，应在极端工况下验证触发稳定性。
- ESD 与浪涌保护：在易受静电或雷击环境中，考虑在电源或输出端增加浪涌抑制元件。
五、主要优势与典型应用
优势：无接触测量、长寿命、宽电压范围、抗振动抗污染、封装便于安装。
典型应用场景：无刷电机换相与霍尔定位、转速/角度传感、限位与近接检测、安全互锁、流量与计数检测、消费电子与工业控制等。
六、选型与注意事项
- 核对 Bop 范围与实际磁场匹配情况，留出容差。
- 确认输出类型（开漏/推挽）、最大工作电流与绝对最大额定值，避免超限。
- 如果外观封装或引脚定义与实际需求不符，请向供应商确认具体“封装版本/尾缀（-T）”对应的机械图。
- 量产阶段建议索取并保存 ALLEGRO 官方数据手册与封装图进行最终验证。
结语：A1101EUA-T 以其宽电压、低静态电流与工业级温度特性，适合对可靠性和寿命有较高要求的开关型霍尔传感应用。最终设计前请参照 ALLEGRO 官方数据手册获取详细电气特性、引脚排列与机械尺寸。
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