WMSIC Electronic Components

LRC S-SMAJ30CA

ModelS-SMAJ30CA
PackageDO-214AC(SMA)
BrandLRC
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
LRC S-SMAJ30CA
Type
LRC
Minimum package
7500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
S-SMAJ30CA
Electronic Component
1
Package
DO-214AC(SMA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.11g
Electronic Component
1
Electronic Component
BM0264584876
Operating Temperature
55℃~+150℃
Voltage
48.4V
Current(Ir)
1uA
Voltage(VBR)
36.9V
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.

S-SMAJ30CA 双向瞬态抑制二极管(TVS)产品概述

一、产品核心定位与类型属性

S-SMAJ30CA是乐山无线电(LRC)推出的双向瞬态抑制二极管(TVS),属于电路过压防护领域的核心器件。其核心作用是在电路遭遇瞬态浪涌(如静电放电、感应雷击、开关浪涌等)时,快速从截止状态切换为导通状态,将电压钳位至安全范围,避免后级敏感元件(如MCU、传感器、接口芯片)被击穿损坏。

双向设计是该器件的核心优势:无需区分正负极性,可同时抑制正、负方向的瞬态脉冲,简化电路设计与布线,尤其适合对极性无明确要求的防护场景(如USB接口、双向通信端口)。

二、关键电气参数及实际意义

该器件的参数经过中低压场景优化,核心参数及应用价值如下:

  1. 反向截止电压(Vrwm=33V):正常工作时器件能承受的最大反向电压上限,此时器件处于截止状态,漏电流极小,不影响电路正常运行;
  2. 击穿电压(Vbr=36.9V):反向电压超过此值时,器件进入雪崩击穿状态,快速响应瞬态脉冲(响应时间通常为纳秒级);
  3. 钳位电压(Vc=48.4V):在峰值脉冲电流(Ipp=8.3A)作用下的最大钳位电压,确保后级电路电压不超过其耐受极限(多数敏感元件耐压低于48V);
  4. 峰值脉冲功率(Ppp=400W@1ms):1ms脉宽下的最大浪涌功率容量,可有效应对常见的开关浪涌、感应雷击(能量与脉宽相关);
  5. 反向漏电流(Ir=1μA@Vrwm):正常工作时漏电流极低,不会导致电路功耗增加或信号干扰;
  6. 工作温度范围(-55℃~+150℃):覆盖工业、汽车级宽温环境,适应高低温波动场景。

三、封装形式与环境适应性

S-SMAJ30CA采用DO-214AC(SMA)贴片封装,具备以下实用优势:

  • 体积紧凑:尺寸约2.5mm×1.5mm×1.0mm,适合高密度PCB布线,可用于小型化电子设备(如智能手机、智能穿戴);
  • 工艺兼容:符合表面贴装(SMT)工艺要求,支持自动化批量生产,降低制造成本;
  • 散热可靠:陶瓷/塑料复合封装结构利于热量扩散,配合宽温设计,在150℃高温下仍能保持稳定防护性能;
  • 机械强度:抗冲击、抗振动能力强,适合车载、工业等振动环境(如汽车仪表盘、工业传感器模块)。

四、典型应用场景匹配

基于双向防护、宽温范围及中低压参数,该器件适用于以下场景:

  1. 消费电子接口:手机、平板的USB Type-C、HDMI接口,应对静电放电(ESD)、插拔浪涌;
  2. 工业控制电路:PLC输入输出端口、电机驱动电路、传感器模块的过压防护,适应工业现场的温度波动与浪涌干扰;
  3. 汽车电子系统:车载导航、胎压监测传感器、仪表盘电源端口防护,满足汽车级温度要求(-40℃~+125℃);
  4. 通信设备端口:路由器、交换机、基站的以太网、射频接口防护,抑制感应雷击与静电干扰。

五、品牌与品质保障

该器件由乐山无线电(LRC) 生产,LRC是国内知名半导体厂商,拥有数十年分立器件研发制造经验,产品符合RoHS、REACH等环保标准,封装工艺成熟,电气参数一致性好。

S-SMAJ30CA经过严格可靠性测试(温度循环、湿度老化、浪涌寿命测试等),可确保在长期使用中保持稳定防护性能,降低设备故障风险,适合对可靠性要求较高的商用与工业场景。

总结:S-SMAJ30CA是一款性价比高、适用场景广的双向TVS器件,双向防护、宽温设计与紧凑封装使其成为中低压电路过压防护的优选方案。

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