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RUILON NTC5D-9 NTC5D
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON NTC5D-9
- Type
- RUILON
- Minimum package
- 500 圆盘
Technical parameters
- Power
- 1.9W
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- NTC5D-9
- Electronic Component
- 1
- Package
- Through-hole, P=7.5mm
- Electronic Component
- NTCThermistor Resistor
- Electronic Component
- 0.779g
- Electronic Component
- 5Ω
- Pitch
- 7.5mm
- Electronic Component
- 1
- B
- ±10%
- (φD)
- 11mm
- Electronic Component
- BM0227382529
- Operating Temperature
- 40℃~+175℃
- Electronic Component
- 11mW/℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
NTC5D-9 产品概述
一、产品简介
NTC5D-9（RUILON 瑞隆源）是一款插件式负温度系数热敏电阻（NTC），额定阻值5Ω（25℃），B值为2700K（25℃/50℃、25℃/75℃、25℃/85℃、25℃100℃均为2700K，精度±10%）。该器件专为浪涌吸收、瞬态过流限制和抑制打火等应用设计，封装为插件型，脚间距P=7.5mm，适合插装与波峰/手工焊接工艺。
二、主要电气与热机械参数
- 阻值：5Ω（25℃标准值）
- B值：2700K（±10%）
- 额定功率：1.9W（稳态）
- 最大稳态电流（25℃）：3A
- 工作温度范围：-40℃ ~ +175℃
- 耗散系数（热阻）：11mW/℃
- 热时间常数：35s
- 引脚间距：7.5mm（插件封装）
三、性能特点
- 初始阻值较小，通电后温升使阻值迅速下降，适合用于抑制开机浪涌电流。
- 高温耐受性（工作温度最高175℃），适用于高温环境或功率密集型电源设备。
- B值一致性好，温度响应稳定，±10%精度满足一般民用与工业级应用需求。
- 插件封装便于安装和维护，脚距7.5mm兼容常见布局。
四、典型应用场景
- 开关电源、变压器、整流模块的开机浪涌电流限制（NTC为预充电元件）。
- 电源防浪涌保护器、过流保护器、吸弧/灭弧辅助电路中作为能量吸收与限流元件。
- 家电（冰箱、空调、洗衣机）、工业电源、充电桩初始冲击电流控制。
- 电子设备电源输入滤波与保护电路。
五、使用与注意事项
- 工作电流不得长期超过最大稳态电流3A，以免过热导致特性漂移或损坏。
- 安装时留出散热空间，避免紧贴高温元件；按耗散系数和周围环境温度计算稳态功耗与温升。
- 对于需要精确温度响应的场合，应考虑B值±10%的影响并做匹配或筛选。
- 避免在超过175℃的环境中长期工作，焊接时注意温度与时间，防止结构损伤。
六、选型建议
若系统开机浪涌电流较大，建议在实际负载与环境温度下测量峰值并留有裕量；如需更高功率或更小稳态电阻，可咨询厂方对等型号或定制规格。NTC5D-9以其平衡的阻值、功率与温度特性，适合多数中小功率电源防浪涌与过流抑制场合。
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