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RUILON RLVR240-012 RLVR240
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON RLVR240-012
- Type
- P=5.1MM
- Minimum package
- 500
Technical parameters
- Electronic Component
- RUILON
- Electronic Component
- RLVR240-012
- Electronic Component
- 1
- Package
- Through-hole, P=5.1mm
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.268g
- Electronic Component
- 1
- Electronic Component
- 15s
- Electronic Component
- BM0264254860
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 240V
- Power(Pd)
- 1W
- Current(Imax)
- 3A
- Electronic Component
- 500
- Latching Current(Ihold)
- 120mA
- Current(Itrip)
- 300mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RLVR240-012 产品概述
RLVR240-012 是 RUILON(瑞隆源) 提供的一款正温度系数（PTC）过流保护器件，面向需要自恢复过流保护的电气与电子设备。器件在正常工作时呈低阻抗状态，可在发生过流或短路时通过自身加热触发聚合物膨胀，从而迅速提高阻抗限制电流，故障解除后可冷却复位，便于重复使用与维护。
一、主要参数
- 耐压（Vmax）：240 V
- 最大允许电流（Imax）：3 A
- 保持电流（Ihold）：120 mA（器件在该电流下不会跳闸）
- 跳闸电流（Itrip）：300 mA（典型触发电流）
- 功耗（Pd）：1 W
- 初始态阻值（Rmin）：3 Ω
- 跳断后阻值（R1max）：11.9 Ω
- 动作时间：15 s（在规定过流条件下达到跳闸）
- 工作温度：-40 ℃ ~ +85 ℃
- 封装：未知（请在工程样机验证时确认封装和尺寸）
二、工作原理简述
RLVR240-012 采用金属导电填料嵌入塑料/聚合物基体的复合结构。正常电流通过时器件电阻较低，能量损耗小；当电流超过设定跳闸值，器件发热引起聚合物膨胀，导电通路断裂或明显受阻，从而使阻抗上升，限制故障电流。当电流恢复到安全范围且器件冷却后，聚合物恢复原状，阻值回落，实现自动复位。
三、电气与热行为说明
- 保持电流 Ihold 表明在该值以下器件不会进入高阻态，适合对启动浪涌有容忍的场景；Itrip 指出在持续过流条件下器件会动作。
- Pd=1 W 为器件额定耗散能力，用于判断在常态和小幅过流下的热稳定性。长期接近 Pd 工作会缩短寿命，应合理留有余量。
- 环境温度会影响动作电流与时间：温度升高时器件更易触发，低温下动作迟缓。设计时需考虑工作环境与散热条件。
四、典型应用
- 开关电源、适配器、充电器的输入或输出过流保护
- 家用电器、小型电机和照明电路的短路与过载防护
- 通信设备、仪器仪表和电池管理系统的线路保护
- 对可复位保护有要求且希望减少更换维护的场合
五、选型与使用建议
- 确认系统正常工作电流小于 Ihold，且在可能的短时浪涌下不致触发 Itrip；若启动电流接近 Itrip，应选择额定更高型号或并用其他保护策略。
- 注意器件在不同环境温度下的性能漂移，必要时做温度耦合测试。
- 由于封装未知，上板或固定时需确认机械尺寸、焊接工艺与热路径，避免过热或机械应力。
- 不建议在长期高于 Pd 的条件下工作；若电路常态功率接近 Pd，应选用更高功耗等级。
六、测试与维护要点
- 在实际产品中进行上电触发测试，记录跳闸时间与后续冷复位性能；
- 做循环寿命测试评估在目标工作周期内的稳定性；
- 检查动作后阻值是否小于 R1max=11.9 Ω，冷态是否回到接近 Rmin=3 Ω 的水平；
- 储存与使用避免强紫外、化学腐蚀及超出温度范围的环境。
如需用于量产，请向供应商确认封装信息、完整电气特性曲线和样品进行可靠性测试，以确保在目标应用场景中长期稳定运行。
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