WMSIC Electronic Components

RUILON SMAJ7.0CA

ModelSMAJ7.0CA
PackageDO-214AC
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 SMAJ7.0CA
Type
RUILON
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMAJ7.0CA
Electronic Component
1
Package
DO-214AC
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.1g
Electronic Component
1
Electronic Component
BM0259380500
Operating Temperature
55℃~+150℃
Voltage
12V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
200uA
Voltage(VBR)
8.95V

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

SMAJ7.0CA 产品概述 — RUILON(瑞隆源)

一、产品简介

SMAJ7.0CA 为 RUILON(瑞隆源)推出的一款双向瞬态电压抑制二极管(TVS),封装为 DO-214AC(SMA)。器件专为抑制瞬态过电压与静电放电设计,适用于需要对双向脉冲或交流耦合线路提供保护的场合。其典型工作电压等级与抑制能力使其在工业、电源与信号接口保护中具有广泛适用性。

二、主要特性

  • 类型:双向 TVS(二向抑制,正负方向均可吸收瞬态能量)
  • 反向截止电压(Vrwm):7V(适合7V量级工况的稳态耐受)
  • 击穿电压(Vbr):约 8.95V
  • 钳位电压(Vc):12V(在规定脉冲条件下的典型钳位值)
  • 峰值脉冲电流(Ipp):33.3A(10/1000µs 波形)
  • 峰值脉冲功率(Ppp):400W(10/1000µs)
  • 反向漏电流(Ir):约 200µA
  • 工作温度范围:-55℃ 至 +150℃
  • 防护等级:满足 IEC 61000-4-4(EFT)与 IEC 61000-4-2(ESD)测试要求

三、典型应用场景

  • 电源输入端和逆变/整流前端的浪涌保护
  • 数字/模拟信号接口(如串口、以太网中非差分高压冲击场合)的瞬态钳位
  • 工业控制设备、通信设备、电力电子装置中用以抑制雷击感应或开关冲击产生的过电压
    (注:器件为通用级 TVS,具体应用需依据系统能量水平与认证要求选择)

四、设计与使用建议

  • 布局:TVS 应尽量靠近被保护端口或连接器,导线与焊盘之间走线短且粗,减少寄生电感以提高响应速度与钳位效果。
  • 热管理:SMA 封装有一定的热阻,连续或高频次脉冲时需注意器件温升,必要时在PCB下方添加散热铜箔或散热孔。
  • 限流/滤波:在高能量环境下建议配合适当的熔断器、限流电阻或共模/差模滤波器使用,以分担能量和保护 TVS 本体。
  • 极性与接法:双向型可直接用于双向瞬态(交流或反向电压场合),无需外加反并联结构;对于单向电源线保护,可优先考虑单向型以获得更低的钳位电压(若有此需求,请选型时注意)。

五、可靠性与规范

SMAJ7.0CA 适用温度范围宽(-55℃ 至 +150℃),可在苛刻环境下长期工作。器件具备针对 IEC 61000-4-4(电快速瞬变)与 IEC 61000-4-2(静电放电)的防护能力,能有效降低电路因瞬态事件导致的功能失效风险。实际系统级合规需结合整机布线、接地与其他保护元件一并验证。

六、封装与选购注意

  • 封装:DO-214AC(SMA),便于自动贴装与波峰/回流焊接。
  • 型号:SMAJ7.0CA,品牌:RUILON(瑞隆源)。
  • 选型提示:确认系统最大冲击能量、重复脉冲频率及最高允许钳位电压,确保 Vrwm 与 Vc 满足被保护器件的耐压要求;同时注意 Ir 在工作电压下对系统功耗的影响。
  • 存储与焊接:遵循常规半导体元件的防潮与焊接工艺规范,避免超过器件的最高结温与机械应力。

总结:SMAJ7.0CA 是一款面向中等能量瞬态抑制的双向 TVS,具有 7V 工作电压、约 12V 钳位、400W(10/1000µs)瞬态承受能力及良好的工作温度范围,适合对交流或双向脉冲线路进行可靠的过压与静电防护。

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