WMSIC Electronic Components

RUILON RLSD52A031V

ModelRLSD52A031V
PackageSOD-523
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 RLSD52A031V
Type
RUILON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
RLSD52A031V
Electronic Component
1
Package
SOD-523
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.021g
Electronic Component
1
Cj- Capacitor
150pF
Electronic Component
BM0238792163
Voltage
12V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
5V

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

RLSD52A031V 产品概述

一、产品简介

RLSD52A031V 是 RUILON(瑞隆源)推出的一款单向 TVS(瞬态电压抑制器),封装为 SOD-523(SC-79),专为 3.3V 电路提供瞬态浪涌与静电放电(ESD)保护。该器件设计用于在发生静电放电或浪涌事件时把危险的高电压钳制到安全电平,保护下游的敏感半导体器件和接口电路。

主要参数一览:

  • 极性:单向
  • 反向截止电压 Vrwm:3.3 V(可直接用于 3.3V 供电/信号线)
  • 击穿电压 Vbr:5 V
  • 钳位电压 Vclamp:12 V(在指定脉冲条件下)
  • 峰值脉冲电流 Ipp:20 A @ 8/20 μs
  • 峰值脉冲功率 Ppp:200 W @ 8/20 μs
  • 反向漏电流 Ir:1 μA
  • 结电容 Cj:150 pF
  • 防护等级:符合 IEC 61000-4-2(ESD)标准
  • 封装:SOD-523(体积小,适合高密度 PCB 布局)

二、关键特性与优势

  • 适配 3.3V 系统:Vrwm = 3.3V,设计上可直接并联在 3.3V 电源或信号线上,无需额外偏置电路。
  • 强抗冲击能力:在 8/20 μs 浪涌波形下可承受 20A 峰值脉冲电流及 200W 峰值脉冲功率,适合中小幅浪涌保护。
  • 低漏电流:反向漏电流仅 1 μA,适合对静态功耗敏感的应用。
  • 小尺寸封装:SOD-523 占板面积小,便于在受限空间的移动设备、便携产品或高密度接口处使用。
  • ESD 合规:满足 IEC 61000-4-2 静电放电防护要求,提升产品在装配与使用过程中的可靠性。

三、典型应用场景

  • 3.3V 电源总线保护(板级或模块级)
  • 信号线/接口保护:GPIO、UART、I2C(注意 Cj 影响)、低速差分接口
  • 接口防护:移动设备外壳连接处、按钮、天线馈线(视系统需求)
  • 工业控制、家电与消费电子中需要抗静电与短时浪涌的场合

四、使用注意事项与 PCB 布局建议

  • 位置靠近受保护端口:为最小感应电感与串联阻抗,应把 TVS 器件尽量靠近外部连接器或信号源放置,并使接地回路尽可能短且宽。
  • 接地处理:建议将器件的地端直接焊接到低阻抗的大面积接地平面,并在必要处配置过孔把接地点快速导入主接地层。
  • 焊盘与热量:SOD-523 为小型封装,焊接时注意回流曲线,避免过热导致器件性能劣化。若需要反复承受大能量浪涌,应评估 PCB 热散能力与器件寿命。
  • 对高速信号的影响:结电容约 150 pF,对高频或高速差分信号会有明显影响,若用于高速接口(如高速 USB、HDMI 等),需选择低电容型 TVS 器件;本器件更适合电源线或低速/单端信号保护。
  • 串联阻抗或限流元件:在需要提升系统耐冲击能力或限制钳位后能量传导时,可在保护点前加入小阻值电阻或阻抗元件,但应权衡信号完整性与响应速度。

五、测试与可靠性

  • 浪涌测试条件通常采用 IEC 61000-4-5 的 8/20 μs 波形,本器件在该条件下标称 Ipp = 20 A、Ppp = 200 W。
  • 静电放电按 IEC 61000-4-2 级别测试,器件设计用于承受典型的人体模型(HBM)或接触放电要求(具体通关等级请参照详细数据手册或厂方测试报告)。
  • 注意:TVS 的能量吸收能力有限,频繁的大能量冲击会缩短器件寿命,应在系统级进行过流、限能或冗余保护设计。

六、选型与替代建议

  • 若目标为保护 3.3V 电源及常规信号线,RLSD52A031V 在体积、性能上为合适选择。
  • 若需用于高速数据线或需更低结电容,请查询同类产品中 Cj 更小的型号或使用专用高速 ESD 抑制器。
  • 对于需要更高冲击能量承受能力的场合,可考虑更大封装或多颗并联/阵列式 TVS 方案,同时确保热耗散设计合理。

七、包装与订购

  • 品牌:RUILON(瑞隆源)
  • 封装:SOD-523(SC-79)
  • 型号:RLSD52A031V
  • 具体最低采购单位、卷带包装、RoHS 与环境合规性等信息,请在订购前向供应商或官方数据手册核实。

如需更详细的电气特性曲线、钳位测试波形或参考电路建议,可提供进一步的 datasheet 以便做出更精确的设计判断。

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