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BORN SMD2920-700/16N
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BORN SMD2920-700 / 16N
- Type
- BORN
- Minimum package
- 1000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BORN
- Electronic Component
- SMD2920-700/16N
- Electronic Component
- 1
- Electronic Component
- 5.44mm
- Package
- 2920
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.275g
- Electronic Component
- 7.98mm
- Electronic Component
- 1.6mm
- Electronic Component
- 1
- Electronic Component
- 2s
- Electronic Component
- BM0258713081
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 16V
- Power(Pd)
- 2W
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMD2920-700/16N 产品概述
一、产品简介
SMD2920-700/16N 是 BORN（伯恩半导体）推出的一款表面贴装型自恢复熔断器（PTC/Polymeric Fuse），封装尺寸为 2920（7.98mm × 5.44mm × 1.6mm）。该器件用于对过流与短路情况提供过载保护，具有快速动作与自恢复能力，适用于对空间与可靠性有要求的电子系统。
二、关键参数
- 额定耐压（Vmax）：16 V
- 最大持续电流（Imax）：40 A
- 保持电流（Ihold）：7 A
- 跳闸电流（Itrip）：14 A
- 动作时间（至跳闸）：约 2 s
- 在常态下电阻（Rmin）：2.5 mΩ
- 跳断后最大阻值（R1max）：18 mΩ
- 功耗（Pd）：2 W
- 工作温度范围：-40 ℃ ~ +85 ℃
- 封装尺寸：7.98 mm × 5.44 mm × 1.6 mm
三、主要特点
- 过流保护精确：Ihold 与 Itrip 值明确，便于设计中可靠预测动作点。
- 低初始阻值：Rmin = 2.5 mΩ，电压降小，适合大电流路径。
- 自恢复能力：过载解除后可恢复导通，减少维护与更换成本。
- 工作温度宽：适应工业级环境（-40 ℃ 至 +85 ℃）。
- 封装紧凑：2920 尺寸适合 SMD 贴装与回流焊工艺。
四、典型应用场景
- 移动电源与便携设备的电池保护
- 电源模块、DC-DC 变换器与车载电子（16 V 以内）过流保护
- 工业控制与通信设备的输入侧保护
- 需要自动复位保护的消费电子与家电产品
五、选型与使用建议
- 额定电流匹配：正常工作电流应明显低于 Ihold（7 A）以避免误动作；峰值电流若短时高于 Ihold，应确保不超过 Itrip 持续时间限制或考虑并联/更高规格件。
- 考虑发热与功耗：在接近 Ihold 的工作点，器件会有一定发热，设计 PCB 时应留有散热空间并避免在高温环境下并联使用。
- 起始电阻与电压降：2.5 mΩ 的低 Rmin 优势明显，但在大电流场合仍需评估功率损耗（I^2R）。
- 多器件并联：若需更大承载能力，应采用规范并联方案并考虑均流问题，不建议简单并联以求提升额定电流。
六、封装与安装注意事项
- 推荐使用标准回流焊工艺，遵循厂商的焊接温度与时间曲线以确保可靠性。
- PCB 焊盘设计应兼顾机械支撑与热散，避免因应力或热循环导致焊点开裂。
- 储存与贴装前避免受潮，必要时按标准回流前进行干燥处理。
七、可靠性与品质提示
BORN 品牌产品通常通过寿命与循环测试，适合长期使用。但在高温、高湿或频繁过载场景，应进行验证测试（热循环、耐压及过流重复动作试验）以确认系统级可靠性。
总结：SMD2920-700/16N 以其低阻、明确的动作特性和自恢复能力，适合作为 16 V 等级下要求自动复位与高可靠性的过流保护器件。在选型与布局时关注额定电流裕量、散热与焊接工艺，可获得稳定、长期的保护性能。
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