WMSIC Electronic Components

Leiditech LC0504F

ModelLC0504F
PackageSOT-363
BrandLeiditech
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
Leiditech LC0504F
Type
LEIDITECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
LC0504F
Electronic Component
1
Package
SOT-363
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.018g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.8pF
Electronic Component
BM0226071920
Operating Temperature
55℃~+125℃
Voltage
20V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA

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

LC0504F 产品概述 — Leiditech(雷卯电子)

一、产品简介

LC0504F 是一款面向敏感信号线保护的瞬态抑制器,来自 Leiditech(雷卯电子),采用 SOT-363 超小型封装,专为 5V 级别接口的瞬态过压和静电放电保护设计。器件通过 IEC 61000-4-2、IEC 61000-4-4、IEC 61000-4-5 等常见抗扰度标准认证,适合消费电子、通信与工业控制等需要高密度 PCB 布局的场合。

二、主要特性

  • 反向工作电压(Vrwm):5V,适配 5V 系统保护需求
  • 击穿电压(Vbr):约 6V(进入导通保护状态)
  • 典型钳位电压(Vc):约 15V,最大钳位可达 20V(依测试条件而定)
  • 峰值脉冲功率:100W(8/20μs),适用于典型浪涌与脉冲冲击抑制
  • 结电容(Cj):0.8pF,极低电容,适合高速数据线(如 USB/信号对等)
  • 反向电流(Ir):500nA(0.5μA),低泄漏电流有利于电池供电或精密模拟电路
  • 封装:SOT-363,适合高密度贴片并可降低 PCB 占位

三、电气性能解析

  • Vrwm=5V 表示在正常工作电压下器件保持高阻状态,不影响信号传输;当线电压超过 Vbr≈6V 时进入击穿并迅速将过压钳位于 Vc(典型约15V),保护后端电路免受短时间高能量冲击。
  • Ppp=100W(8/20μs)为脉冲承受能力指标,适配由瞬态浪涌或放电产生的窄脉冲能量;注意该功率为脉冲峰值,器件不适合承载长期直流大功率。
  • 结电容 0.8pF 为典型值,表明对高速信号影响小,适用于对带宽敏感的接口。低 Ir 值降低误触发与静态功耗。

四、封装与布局建议

  • 使用 SOT-363 小体封装时,应将器件尽量靠近被保护的接口(如外部连接器或 I/O 引脚)布置,缩短走线,减小寄生电感与环路面积。
  • 保护回路的接地需做低阻抗处理,采用多层板的地平面或尽可能短的回流路径,有利于快速释放冲击能量。
  • 对于可能出现较大浪涌能量的应用,建议在保护器与敏感电路之间并联串联微阻或滤波器,以分担能量并抑制残余振荡。

五、典型应用场景

  • USB、串口、I2C/ SPI 等 5V/低压高速数据线的 ESD 与浪涌保护
  • 手机配件、可穿戴设备、消费类电子的接口保护
  • 工业控制与通信终端的外部信号接口防护(需结合系统浪涌能量评估)
  • IoT 终端与传感器节点的稳健性提升

六、使用注意事项与选型建议

  • 该器件钳位电压在典型测试下约 15V,最大可能接近 20V;若被保护电路对过压承受能力较低,应考虑并联更低钳位或增加限流元件。
  • 峰值 100W 为 8/20µs 脉冲指标;若系统可能遭受更强雷击或长时浪涌,应采用更高能量等级的防护方案或级联多级保护。
  • 在高速差分信号或对称阻抗要求严格的线路上,需评估 0.8pF 的附加电容对信号完整性的影响,必要时做仿真验证。
  • 最终使用前请以厂方最新版产品资料与测试条件为准,推荐在样品阶段做完整的系统级抗扰度与信号完整性验证。

如需器件引脚、典型等效电路或更详细的浪涌/ESD 测试曲线,可联系 Leiditech(雷卯电子)获取完整数据手册与应用笔记。

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