WMSIC Electronic Components

RUILON RLSD32A031LC

ModelRLSD32A031LC
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 RLSD32A031LC
Type
RUILON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
RLSD32A031LC
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.029g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
1pF
Electronic Component
BM0246664705
Operating Temperature
55℃~+150℃
Voltage
7.5V
Electronic Component
Electronic Component

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

RLSD32A031LC — 双向ESD保护二极管产品概述

一、产品概述

RLSD32A031LC 是由 RUILON(瑞隆源)推出的一款单路双向ESD保护二极管,采用紧凑的 SOD-323 封装,专为对敏感信号线和接口进行瞬态过压保护而设计。器件在反向截止电压(Vrwm)为 3.3V 时依然能提供可靠的钳位保护,典型钳位电压为 7.5V,峰值脉冲放电能力(Ipp)达到 5A(单次脉冲),结电容 Cj 低至 1pF,工作温度范围宽(-55℃ ~ +150℃),适合移动终端、高速数据接口及各种工业电子产品的静电放电防护需求。

二、主要特性与优势

  • 双向(Bi-directional)设计:能对正负极性瞬变脉冲提供对称保护,适用于没有固定极性的信号线(如数据总线、差分线)。
  • 低钳位电压:典型钳位电压 7.5V,能在瞬态发生时有效限制电压上升,减少对后端敏感器件的冲击。
  • 较高冲击能力:峰值脉冲电流 Ipp = 5A(单次),满足常见的 ESD 脉冲防护要求。
  • 超低结电容:Cj ≈ 1pF,非常适合高速接口(如 USB、HDMI、LVDS、PCIe 等)或高频信号线,最大限度降低对信号完整性的影响。
  • 宽温度工作范围:-55℃ 到 +150℃,满足汽车级或工业级环境下长期可靠工作需求(具体使用须参照下游系统要求)。
  • 紧凑封装:SOD-323 小体积,便于高密度 PCB 布局和便携设备的空间限制设计。

三、典型应用场景

  • 手机、平板、耳机等移动终端的数据/音频接口ESD防护
  • USB、Micro-USB、Type-C 接口旁路保护
  • 摄像头、传感器信号线保护
  • 工业控制接口、低压数字信号总线(I2C、SPI、UART)保护
  • 网络设备、消费电子和可穿戴设备的输入输出端口保护

四、功能与电气行为说明

  • 工作方式:双向瞬态抑制,器件在正常工作电压范围内呈高阻态;当瞬态过电压(如静电放电、浪涌脉冲)出现时,二极管迅速导通,将能量钳位并引导至两端,保护线路后端器件。
  • 反向截止电压(Vrwm):3.3V,适配以 3.3V 系统为主的信号线标准。
  • 钳位电压(Vclamp):7.5V(典型值),用于评估在冲击时后端器件所承受的最大电压。
  • 峰值脉冲电流(Ipp):5A,指在指定波形下器件可承受的脉冲电流能力(设计时应结合应用的脉冲波形和次数评估热及能量限制)。
  • 结电容(Cj):1pF,保证对高速信号的最小加载和失真。

五、封装与引脚说明

  • 封装类型:SOD-323(小型 2 引脚封装)
  • 引脚功能:双端无极性,标识为 A、B,两端对称,使用时直接并接在需保护的信号线两端或信号线对地/对相线位置(根据系统拓扑)。
  • 封装优势:面积小、厚度低,利于自动贴装和高速制程。

六、布板与使用建议

  • 放置位置:尽量靠近被保护的接口或连线端,缩短走线长度以降低感应和串联电感。
  • 焊盘与回流:建议按照厂家建议的 SOD-323 焊盘尺寸和回流工艺进行焊接;在高密度设计中应注意散热路径和热阻。
  • 多通道保护:单通道器件适合单线或单差分对保护,若需保护多路,应并行布置多个器件或选择多通道封装方案。
  • 测试与验证:在产品开发中通过实际 ESD 耐受测试(如按公司或行业标准的脉冲波形)验证布局和保护效果。

七、可靠性与规范建议

  • 温度与寿命:器件可在 -55℃ 至 +150℃ 范围内工作;长期可靠性应结合实际工作温度和冲击次数评估。
  • 生产与储存:在 SMT 贴片和回流焊前,请遵循湿敏等级(MSL)及制造商存储建议,避免潮湿引起焊接缺陷。
  • 认证与测试:建议在设计验证阶段进行 ESD/IEC 标准相关测试和系统级冲击测试,确保整机满足客户或行业规范。

八、选型与采购提示

  • 型号:RLSD32A031LC(RUILON / 瑞隆源)
  • 主要参数确认:购买前请确认 Vrwm、Ipp、Vclamp、Cj 等关键参数满足目标系统需求,必要时咨询厂商索取详细数据手册和波形曲线。
  • 替代与对比:在寻求替代器件时,应优先匹配 Vrwm、钳位电压、结电容与峰值能量能力,以保证信号完整性和保护性能一致。

如果需要,我可以根据您的具体接口类型(例如 USB、串口或差分信号)给出更细化的应用接法、PCB 布局建议以及回流焊工艺参考。

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