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HXY MOSFET DS18B20
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HXY MOSFET DS18B20
- Type
- HXY MOSFET
- Minimum package
- 1000 袋
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HXY MOSFET
- Electronic Component
- DS18B20
- Electronic Component
- 1
- Package
- TO-92
- Electronic Component
- Temperature Sensor
- Electronic Component
- ±0.4℃
- Electronic Component
- 0.219g
- Electronic Component
- 1
- Features
- Output;; Low Power
- Electronic Component
- BM0228150209
- Operating Voltage
- 2.5V~5.5V
- Current
- 1uA
- Interface Type
- Bus
- Electronic Component
- 55℃~+125℃
- Resolution
- 12bit
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
DS18B20 产品概述
一、产品简介
DS18B20 是一种数字温度传感器，基于单总线（One-Wire）协议进行通信，体积小、功耗低、精度高，适合多点温度采集与长期运行的温度监测系统。该型号由 HXY MOSFET（华轩阳电子）推出，常见封装为 TO-92，便于插装与手工焊接。
二、主要参数
- 温度测量范围：-55 ℃ ~ +125 ℃
- 精度：±0.4 ℃
- 工作电压：2.5 V ~ 5.5 V
- 待机电流：1 µA（静态低功耗）
- 接口类型：单总线（One-Wire）
- 温度转换时间：400 ms（12-bit 分辨率）
- 温度分辨率：12 bit（最小分辨率 0.0625 ℃）
三、封装与品牌
- 品牌：HXY MOSFET（华轩阳电子）
- 常见封装：TO-92（便于线缆连接、插板与原型开发）
该封装便于在通孔 PCB 或面包板上快速验证与小批量应用。
四、功能与特点
- 数字输出，直接读取温度值，无需外部 ADC。
- 单总线支持多节点挂载，最多可在同一信号线上挂接多个器件（需唯一 ROM 地址）。
- 支持低功耗待机，适合电池供电或长期监测场景。
- 高分辨率 12-bit，能达到 0.0625 ℃ 的最小步进；转换时间在满分辨率时约为 400 ms。
- 耐宽温度范围，适应工业与环境监测要求。
五、典型应用场景
- 温度记录与环境监测（机房、温室、冷链监控）
- 家用电器与 HVAC 系统温度采集
- 工业控制与传感器网络节点
- 便携式与电池供电的温度监测设备
六、接口与使用建议
- 通信：单总线协议，需拉高线使用上拉电阻（典型 4.7 kΩ，电源 5 V 时常用）。
- 供电方式：可使用正常供电或寄生供电（寄生供电会影响响应速度与稳定性，推荐能独立供电时优先使用独立 VDD）。
- 多点布线：若总线较长或节点较多，应注意线缆阻抗与上拉电阻值的匹配，必要时使用总线驱动或局部缓冲。
- 分辨率设置：默认 12-bit，若需更快响应可降低分辨率以减少转换时间。
七、设计注意事项与排查要点
- 精度受安装位置与热阻影响，传感器应与被测物良好热接触并避开热源干扰。
- 长线环境下易受干扰，建议在关键节点做滤波与去耦（VDD 旁并联 0.1 µF）。
- 若出现通信不稳定，先检查上拉电阻值、线缆连接与地线回路，再检验器件 ROM 地址冲突。
- 对于安全关键或需高精度场合，建议出厂后做现场标定或温度校准。
八、采购与质量建议
- 选择正规渠道采购，核验器件外观与标签（品牌、封装、批次）。
- 批量采购前建议先做样片测试（温漂、精度、通信稳定性），并保留供应商质保与技术支持信息。
- 对于长期使用，关注存储条件与焊接温度，避免高温回流损伤封装与内部元件。
小结：HXY MOSFET 提供的 DS18B20（TO-92）以其宽温度范围、低功耗与单总线便利性，适合多种温度监测应用。按上述接口与布线建议设计，可保证稳定可靠的温度测量性能。
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