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RUILON SMD2920P300TF/16 SMD2920P300TF
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON SMD2920P300TF / 16
- Type
- RUILON
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- SMD2920P300TF/16
- Electronic Component
- 1
- Electronic Component
- 5.44mm
- Package
- 2920
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.181g
- Electronic Component
- 7.98mm
- Electronic Component
- 1.2mm
- Electronic Component
- 1
- Electronic Component
- 20s
- Electronic Component
- BM0258874070
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 16V
- Power(Pd)
- 1.5W
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMD2920P300TF/16 自恢复保险丝（RUILON 瑞隆源）产品概述
一、产品简介
SMD2920P300TF/16 为 RUILON（瑞隆源）品牌的表面贴装自恢复保险丝（PPTC）。该器件在超过设定电流时自动增大阻值以限制电流，故障消除后能恢复低阻态重复使用。适用于对短路与过流有反复保护需求的小型电子设备及模块。
二、主要技术参数
- 最大耐压 (Vmax)：16 V
- 最大电流 (Imax)：40 A
- 保持电流 (Ihold)：3 A
- 跳闸电流 (Itrip)：6 A
- 功耗 (Pd)：1.5 W
- 初始态阻值 (Rmin)：12 mΩ
- 跳断后最大阻值 (R1max)：48 mΩ
- 动作时间：20 s（典型/参考条件）
- 工作温度：-40 ℃ ~ +85 ℃
- 外形尺寸：长 7.98 mm × 宽 5.44 mm × 高 1.2 mm
- 封装信息：厂商标注封装未知，请以实际样品或数据手册为准
三、特性与优势
- 响应稳定：保持电流与跳闸电流差距明确（3 A 与 6 A），便于电路保护门限设定。
- 重置可靠：过流消除后可自恢复，适合反复出现短时过流的场景，降低维护成本。
- 低初态阻值：12 mΩ 的起始阻值在正常工作下对电源压降影响小。
- 紧凑尺寸：SMD 贴片形式便于自动贴装与量产，适合空间受限的 PCB 布局。
四、典型应用
- USB、充电与数据接口保护
- 电池保护与电源分配模块
- 通信设备与路由器端口保护
- 工控与消费电子的局部过流保护
五、选型与使用建议
- 环境与散热：工作温度与周边器件的发热会影响保持电流和动作时间，建议为关键保护点预留散热和空气流通。
- 退让设计：避免长期在接近 Ihold 的电流下工作，若负载有较大启动电流，应选择更大额定 Ihold 或采用限流策略。
- PCB 安装：按厂商推荐焊盘设计并保证足够铜箔面积以利散热；SMD 尺寸与焊盘需与实际器件一致。
- 焊接工艺：建议遵循器件的回流焊温度曲线，避免长时间高温导致材料性能退化。
六、注意事项
- 封装标注为“未知”，出货前务必索取并确认官方数据手册与物料图（3D/封装图）。
- 跳闸时间与阻值受测试条件影响较大，设计时应考虑最不利工况并做实际样机验证。
- 若应用中出现频繁跳闸，应排查电路或采用更高规格的保护器件。
如需进一步的电气曲线、封装图或封装尺寸图（3D），建议向 RUILON 或供应商索取完整的数据手册以进行最终设计验证。
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