WMSIC Electronic Components

RUILON RLSD32A031C

ModelRLSD32A031C
PackageSOD-323
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 RLSD32A031C
Type
RUILON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
RLSD32A031C
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.029g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
80pF
Electronic Component
BM0241218547
Voltage
10V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA

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

RLSD32A031C — 双向TVS静电与浪涌保护(二极管)

一、产品概述

RLSD32A031C 是 RUILON(瑞隆源)推出的一款小封装双向瞬态抑制二极管(TVS),采用 SOD-323 封装,专为 3.3V 系统的静电(ESD)与浪涌(EFT/Surge)保护设计。器件在 8/20μs 浪涌波形下能承受高达 32A 的峰值脉冲电流,峰值脉冲功率达到 320W,适合用于接口连接器、信号线和电源保护的空间受限场合。

二、主要参数

  • 极性:双向(适用于双向信号线或不接地参考的接口)
  • 反向截止电压 Vrwm:3.3V
  • 击穿电压 Vbr:4V(典型)
  • 钳位电压(Vm):10V(典型)
  • 峰值脉冲电流 Ipp:32A @ 8/20μs
  • 峰值脉冲功率 Ppp:320W @ 8/20μs
  • 反向电流 Ir:1μA(在 Vrwm 条件下)
  • 结电容 Cj:80pF(典型)
  • 通道数:单路
  • 防护等级:符合 IEC 61000-4-4(EFT)与 IEC 61000-4-2(ESD)标准
  • 封装:SOD-323(小型表面贴装)

三、功能特点与优势

  • 小型化封装(SOD-323),便于在空间受限的移动设备或端口区域布置。
  • 双向保护,可直接用于双向数据线(如某些串行接口、音频线或差分线)或无极性电源线路。
  • 低漏电流(1μA),对 3.3V 系统的静态功耗影响极小。
  • 80pF 的结电容在大多数控制与通信场合下平衡了信号完整性与保护能力;对超高速差分信号需评估是否满足要求。
  • 满足 IEC ESD/EFT 测试,提升系统对突发干扰的鲁棒性。

四、典型应用

  • MCU/SoC 3.3V 接口保护(I/O、串口、SPI、I2C 等)
  • USB/串口连接器、通信接口的浪涌与静电防护(需评估结电容对信号的影响)
  • 工业控制、门禁、仪表等对雷击或开关瞬态敏感的输入端口
  • 小型便携设备、消费电子外围接口保护

五、使用与布局建议

  • 将 RLSD32A031C 尽可能靠近被保护的连接器或信号引脚焊接,最短走线以减少感抗和回路面积。
  • 对于双向器件,两端分别接到信号与地(或两线间)以实现钳位;若用于共模或差分线,按设计图连接到两相线之间。
  • 为提高脉冲能量散热能力,器件焊盘周围使用较大铜皮或过孔与内部平面相连,有利于瞬时热量扩散。
  • 注意器件不能作为连续功率器件长期承受高功率,Ppp 指标为脉冲能力;若存在重复大能量脉冲需评估寿命和热堆积。
  • 若用于高速差分信号(如 USB3、HDMI 等),需评估 80pF 电容对信号带宽的影响,必要时选择更低电容的 TVS。

六、选型参考

在选择 TVS 器件时,应平衡以下因素:

  • 最大工作电压(Vrwm)应高于系统正常工作电压并留一定裕量,RLSD32A031C 的 Vrwm 为 3.3V,适配 3.3V 总线。
  • 钳位电压需低于被保护器件的耐受电压,RLSD32A031C 钳位约 10V,适用于多数接口保护场合。
  • 结电容对高速信号的影响:80pF 对于低速或控制信号足够,但对高速差分信号需慎重。
  • 脉冲承受能力(Ipp、Ppp)应匹配预期的冲击能量等级。

RLSD32A031C 提供了在体积、保护能力与成本之间的良好平衡,是 3.3V 应用中常见且实用的 ESD/浪涌保护选择。如需更低电容或更高能量等级的型号,可根据具体系统要求进一步筛选。

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