WMSIC Electronic Components

RUILON SMD1812P150TF/33 SMD1812P150TF

ModelSMD1812P150TF/33
Package1812
BrandRUILON
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON SMD1812P150TF / 33
Type
RUILON
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMD1812P150TF/33
Electronic Component
1
Electronic Component
3.41mm
Package
1812
Electronic Component
Resettable Fuse
Electronic Component
0.114g
Electronic Component
4.73mm
Electronic Component
1.5mm
Electronic Component
1
Electronic Component
500ms
Electronic Component
BM0257712400
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
33V
Power(Pd)
800mW

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMD1812P150TF/33 — RUILON(瑞隆源)自恢复保险产品概述

一、产品概述

SMD1812P150TF/33 是 RUILON(瑞隆源)推出的一款 SMD 规格自恢复保险(PPTC),封装为业界通用的 1812。该器件针对电路过流保护设计,在发生短路或过载时迅速限流并在故障清除后自动恢复导通,适合各类消费电子、电源模块及接口保护场景。产品已通过校验,可靠性和一致性满足常规设计需求。

二、主要技术参数

  • 额定耐压(Vmax):88 V
  • 最大承载电流(Imax):35 A
  • 保持电流(Ihold):1.5 A(常温下维持正常工作不动作的最大电流)
  • 跳闸电流(Itrip):3 A(在规定时间内触发限流动作的电流)
  • 动作时间:500 ms(典型或测试条件下)
  • 功耗(Pd):800 mW
  • 初始态阻值(Rmin):40 mΩ
  • 跳断后阻值上限(R1max):160 mΩ
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 封装与尺寸:1812,长 4.73 mm × 宽 3.41 mm × 高 1.50 mm

三、性能与特性

  • 低初始内阻(约 40 mΩ),在常态工作时对电路压降与效率影响小,适合对压降敏感的低阻负载场合。
  • 在超过 Itrip 时能够在约 500 ms 内进入高阻限流状态,有效保护下游器件免受短路或过载损坏。跳断后阻值可达 160 mΩ,显著降低通过电流直至故障清除。
  • 自恢复特性:故障消除并冷却后,器件阻值恢复到低值,无需更换,便于维护和提高系统可靠性。
  • 宽温度工作范围,适应常见室温及工业级温度环境。

四、典型应用场景

  • 消费类便携设备的充电保护与电源路径保护
  • USB、HDMI 等接口和通讯端口的过流保护
  • 电源适配器及电源管理模块的输出保护
  • LED 驱动及小功率电机驱动等需要自恢复保护的场合

五、封装与机械特性

  • 标准 SMD 1812 封装,方便与常规 SMT 工艺配合,适用于批量贴装与回流焊接。
  • 尺寸为 4.73 × 3.41 × 1.50 mm,适合空间受限但需一定电流承载能力的电路板布局。

六、使用注意事项与建议

  • 设计时应保证常态工作电流低于 Ihold 以避免误动作,留有适当裕量以应对环境温度上升导致的特性漂移。
  • 焊接工艺请遵循厂商推荐的回流曲线,避免长时间高温暴露以保持器件性能与寿命。若无具体曲线,建议采用标准无铅回流工艺并控制峰值温度和保温时间。
  • 放置时避免机械应力和弯曲,焊盘设计需保证良好散热及电气连接。
  • 在高湿或腐蚀性环境中应采取相应防护或封装措施。

七、储存与可靠性

  • 建议密封防潮保存,避免长时间暴露在高温高湿下。
  • 工作与储存温度范围同规格所示,超过该范围可能导致性能劣化或失效。
  • 对于关键或高可靠性产品,建议进行环境应力筛选(ESS)与寿命验证。

总结:SMD1812P150TF/33 以其低初阻、可自恢复、封装紧凑和适中的动作特性,适合广泛的过流保护应用。欲获得完整电气特性曲线、回流焊参数和认证信息,请联系 RUILON(瑞隆源)或查阅完整数据手册。

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