WMSIC Electronic Components

RUILON SMD1812P075TF/24 SMD1812P075TF

ModelSMD1812P075TF/24
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON SMD1812P075TF / 24
Type
1812
Minimum package
1500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMD1812P075TF/24
Electronic Component
1
Electronic Component
3.41mm
Package
1812
Electronic Component
Resettable Fuse
Electronic Component
0.096g
Electronic Component
4.73mm
Electronic Component
1.3mm
Electronic Component
1
Electronic Component
200ms
Electronic Component
BM0257675615
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
24V
Power(Pd)
800mW

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

SMD1812P075TF/24 产品概述

一、产品简介

SMD1812P075TF/24 是 RUILON(瑞隆源)推出的一款低阻抗自恢复保险(PTC resettable fuse),采用1812表面贴装封装,专为24V及以下系统的过流保护设计。器件在遭受过流或短路时可迅速限制电流,在故障消除后自动恢复导通,维护系统安全并减少维护成本。校验通过!

二、主要规格参数

  • 额定耐压(Vmax):24 V
  • 最大脉冲电流(Imax):30 A
  • 保持电流(Ihold):750 mA(典型)
  • 跳闸电流(Itrp):1.5 A(典型)
  • 功耗(Pd):800 mW
  • 初始态电阻(Rmin):90 mΩ
  • 跳断后电阻(R1max):450 mΩ
  • 动作时间:200 ms
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 外形尺寸(封装1812):长度 4.73 mm × 宽度 3.41 mm × 高度 1.3 mm

三、关键特性

  • 低初始电阻,系统压降小,适合对效率要求较高的电源线路。
  • 明确的保持电流与跳闸电流点,提供稳定的过流触发性能。
  • 自恢复特性:故障解除后无需更换,降低维护成本。
  • 宽工作温度范围,适应工业及车载等恶劣环境。
  • 小型SMD封装,便于自动化贴装与高密度布局。

四、典型应用场景

  • 24V及以下工业电源总线保护
  • 电池保护与充放电线路(如备用电源、UPS)
  • 通信设备、网络设备电源模块
  • 汽车电子、车载附件的线路保护(需按车规环境验证)
  • 任何需要重复自恢复的过流保护场合

五、安装与使用建议

  • 推荐采用符合封装规格的焊盘设计与回流焊工艺,避免过热导致性能偏移。
  • 工作环境温度升高会影响保持/跳闸特性,布线设计时应考虑热源与散热条件,必要时做电流/温度降额。
  • 避免长时间接近最大允许功耗(Pd),以延长可靠性与寿命。
  • 在设计中预留合适的故障检测与隔离方案,配合器件自恢复特性使用。

六、可靠性与检测

  • 通过-40 ℃ 至 +85 ℃ 工作温度验证,动作时间典型200 ms,可满足多数工业场景的保护响应需求。
  • 建议在样机验证中对重复跳闸寿命、环境温度影响及浪涌耐受(Imax)进行专项测试,确保系统长期稳定。

七、包装与订购信息

型号:SMD1812P075TF/24;品牌:RUILON(瑞隆源);封装:1812 SMD。订购时请按实际使用环境核对温度、浪涌能力及合格证书需求,如需车规级或特殊测试报告,请与供应商确认。

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