WMSIC Electronic Components

RUILON RLSD32A121V

ModelRLSD32A121V
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON RLSD32A121V
Type
RUILON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
RLSD32A121V
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
120pF
Electronic Component
BM0264391766
Voltage
25.9V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;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.

RLSD32A121V 单向ESD防护瞬态抑制二极管产品概述

一、产品定位与核心价值

RLSD32A121V是瑞隆源(RUILON) 推出的单向瞬态抑制二极管(TVS) ,专为低电压电路的静电放电(ESD)、电快速瞬变脉冲群(EFT)及小功率浪涌防护设计。其核心价值在于:在不干扰正常电路工作的前提下,快速钳制过压脉冲,保护敏感元器件(如MCU、传感器、射频模块等)免受瞬态干扰损坏,同时适配小型化电子设备的高密度布局需求。

二、关键电气性能参数解析

该器件的核心参数均围绕“低电压防护+小型化”设计,具体解析如下:

1. 电压类参数

  • 反向截止电压(Vrwm):12V
    器件正常工作时反向能承受的最大电压(无击穿),要求电路正常工作电压≤12V,避免长期反向击穿影响寿命。
  • 击穿电压(Vbr):13.3V(典型值)
    反向电压超过此值时器件开始击穿,进入钳位工作模式,为后级电路提供过压保护。
  • 钳位电压(Vc):25.9V(典型值)
    当出现峰值脉冲电流时,器件将电压钳位在该值以内,确保后级电路不会因过压损坏。

2. 脉冲耐受能力

  • 峰值脉冲电流(Ipp):15A@8/20μs
    采用国际标准8/20μs浪涌波形测试(模拟雷电、电源浪涌的典型特征),器件能承受的最大峰值电流。
  • 峰值脉冲功率(Ppp):300W
    对应上述浪涌波形下的最大功率,反映器件的浪涌耐受极限。

3. 其他关键参数

  • 反向漏电流(Ir):1μA(典型值)
    反向截止时的漏电流极小,不会对正常电路造成额外功耗或信号干扰。
  • 结电容(Cj):120pF(典型值)
    器件寄生电容,适合中低频信号线路(如低速数据接口、传感器信号),超高频场景需评估电容影响。
  • 通道数:单路
    仅针对单一方向的过压防护,正向导通无阻碍。

三、封装与可靠性设计

1. 小型化封装:SOD-323

封装尺寸约1.6mm×0.8mm×0.6mm,为表面贴装型,占用空间极小,适配蓝牙耳机、智能手环等便携式设备的高密度布局,同时兼容自动化焊接工艺。

2. 国际标准防护认证

器件符合三大核心电磁兼容(EMC)标准,覆盖电子设备常见瞬态干扰场景:

  • IEC 61000-4-2(ESD):抵御接触放电(±8kV)、空气放电(±15kV);
  • IEC 61000-4-4(EFT):应对快速脉冲群干扰(±4kV/5kHz);
  • IEC 61000-4-5(浪涌):耐受小功率浪涌(如±2kV/2Ω)。

3. 环境可靠性

支持**-55℃~+150℃** 工作温度范围(常规TVS典型范围),能适应工业、车载等不同环境的温度变化,长期工作稳定性可靠。

四、典型应用场景

RLSD32A121V因“小封装+适中防护能力”,广泛适用于以下场景:

  1. 便携式消费电子:蓝牙耳机、智能手环、智能手表的信号/电源接口防护;
  2. 物联网终端:低功耗传感器节点、智能家居控制器的低压信号接口;
  3. 移动电源/充电器:USB接口的静电防护(避免插拔时的静电损坏);
  4. 汽车电子辅助电路:12V低压辅助系统(如车内传感器、按键电路);
  5. 工业控制低压模块:小型PLC的输入输出接口、传感器信号线路。

五、选型与使用注意事项

  1. 电压匹配:确保电路正常工作电压≤12V(Vrwm),避免长期反向击穿;
  2. 频率适配:120pF结电容不适合GHz以上超高频场景(如射频天线),需选低结电容TVS;
  3. 焊接工艺:焊接温度≤260℃,焊接时间≤10秒,避免热应力损坏;
  4. 浪涌扩容:若浪涌电流超过15A(8/20μs),可并联多个器件提升防护容量;
  5. 极性确认:单向器件需注意电路极性,确保反向过压时正常工作。

总结

RLSD32A121V凭借小型化封装、可靠的瞬态防护能力、符合国际标准 的特性,成为低电压电路静电/浪涌防护的高性价比选择,尤其适合便携式、小型化电子设备的设计需求,能有效降低敏感元器件的损坏风险。

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