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RUILON RL0805N104J3950H
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON RL0805N104J3950H
- Type
- RUILON
- Minimum package
- 4000 圆盘
Technical parameters
- Power
- 200mW
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- RL0805N104J3950H
- Electronic Component
- 1
- Electronic Component
- 1.25mm
- Package
- 0805
- Electronic Component
- NTCThermistor Resistor
- Electronic Component
- 0.04g
- Electronic Component
- 2mm
- Electronic Component
- 100kΩ
- Electronic Component
- 0.85mm
- Electronic Component
- 1
- B
- ±3%
- Electronic Component
- BM0241223613
- Operating Temperature
- 55℃~+125℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RL0805N104J3950H 产品概述
一、产品简介
RL0805N104J3950H 是 RUILON(瑞隆源) 出品的一款 0805 封装 NTC 热敏电阻，标称阻值 100 kΩ（25℃），B 值（25℃/50℃）为 3950 K。电阻公差 ±5%，B 值公差 ±3%，额定功率 200 mW，适用于宽温度范围的温度测量与补偿场合。
二、主要电气参数
- 标称阻值：100 kΩ（@25℃）
- B 值：3950 K（25℃/50℃）±3%
- 电阻精度：±5%
- 工作温度：-55℃ 至 +125℃
- 封装：0805（约 2.0 mm × 1.25 mm）
阻温关系可用标准 B 方程表示： R(T) = R25 · exp[B · (1/T − 1/T25)]（T 以 K 为单位） 示例计算（近似）：
- 0℃（273.15 K）：约 336.6 kΩ
- 50℃（323.15 K）：约 35.9 kΩ
- 125℃（398.15 K）：约 3.6 kΩ
三、热特性与功率管理
- 额定功率：200 mW（常温）
- 耗散系数（冷却系数）：2 mW/℃，表示随环境温度上升可允许功率线性降额。公式近似为 Pd_max = 200 mW − 2 mW/℃ × (Tamb − 25℃)，在 125℃ 处理论上降至接近 0。
- 热时间常数：约 5 s，响应快速，适合动态测温与控制应用。
使用时应避免大电流直流加热造成自热引起读数偏差，必要时采用低测量电流或脉冲测量。
四、机械与环境建议
- 尺寸：长 2.0 mm，宽 1.25 mm（符合 0805 标准尺寸）
- 工作环境：-55℃~+125℃，适合工业类环境。
- 装配：推荐常规贴片回流焊工艺，避免过度机械挤压引起电阻漂移或断裂。储存与焊接按一般无铅贴片元件规范执行。
五、典型应用
- 温度检测与反馈（MCU、AD 转换器接口）
- 电池管理、充电保护与温度补偿电路
- 家电、暖通与环境监测设备
- 功率管理、电源模块温度监控
六、选型与使用建议
- 若需高精度温度测量，建议选择更低阻值或更高精度 B 值器件，或进行现场标定以抵消 ±5% 的阻值公差与 ±3% 的 B 值误差。
- 测量时采用恒流源或已知分压方式并考虑 ADC 输入阻抗与分压电阻对测量精度的影响。
- 在高温或高功耗场合注意降额使用并计算自热误差；可采用短脉冲测量法减少自热影响。
- 对长期稳定性有要求的应用，应在设计初期进行加速老化测试并预留校准方案。
总结：RL0805N104J3950H 以其小型 0805 封装、较高阻值和较大的 B 值，适合对温度灵敏且要求占位小的应用场合。合理的功率管理与测量方法能够充分发挥其快速响应与温度测量能力。
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