WMSIC Electronic Components

RUILON SMAJ15A

ModelSMAJ15A
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 SMAJ15A
Type
RUILON
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMAJ15A
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
BM0265056269
Operating Temperature
55℃~+150℃
Voltage
24.4V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
19.2V

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

SMAJ15A 瞬态抑制二极管(TVS)产品概述

一、产品基本定义与标识

SMAJ15A是一款单向瞬态抑制二极管(TVS),由RUILON(瑞隆源)品牌研发生产,采用DO-214AC(SMA)贴片封装。作为电路过压防护核心器件,其核心作用是在遭遇瞬态浪涌(如静电放电、电快速瞬变脉冲)时,快速从截止态切换至低阻抗导通态,钳位电压至安全范围,保护后端敏感电子元件(如MCU、传感器)免受损坏。

二、核心电性能参数解析

SMAJ15A的参数设计精准匹配中低功率电路的防护需求,关键参数如下:

1. 电压类参数

  • 反向截止电压(Vrwm):15V
    器件正常工作时可承受的最大反向直流电压,此时处于截止态,漏电流极小,不影响电路静态运行。
  • 击穿电压(Vbr):19.2V
    反向电压超过Vrwm后,器件发生雪崩击穿,进入低阻抗导通状态,快速泄放浪涌电流的起点。
  • 钳位电压(Vc):24.4V
    在额定峰值脉冲电流下,器件两端的最大电压值,是防护电路的核心安全上限(确保后端元件电压不超耐压)。

2. 电流与功率参数

  • 峰值脉冲电流(Ipp):16.4A
    10/1000μs脉冲波形下的最大浪涌电流能力,反映器件瞬态电流泄放的极限。
  • 峰值脉冲功率(Ppp):400W@10/1000μs
    对应Ipp的脉冲功率,直接体现浪涌防护容量,可覆盖多数消费电子、工业控制电路的防护需求。

3. 漏电流与温度参数

  • 反向漏电流(Ir):1μA
    Vrwm下的反向漏电流,数值极小(静态功耗≤15μW),无额外发热或负载影响。
  • 工作温度范围:-55℃~+150℃
    宽温覆盖工业级、汽车级(部分场景)及消费电子的高低温环境,可靠性稳定。

三、防护特性与典型应用

1. 防护标准与能力

SMAJ15A符合**IEC 61000-4-2(静电放电ESD)和IEC 61000-4-4(电快速瞬变脉冲群EFT)**防护等级,可有效抑制:

  • 人体接触产生的ESD(如±8kV接触放电、±15kV空气放电);
  • 电源/信号线上的快速瞬变脉冲(如2kV/5kHz脉冲群)。

2. 典型应用场景

因DO-214AC封装体积小(2.7mm×1.6mm×1.1mm)、焊接便捷,适用于高密度PCB设计,典型应用包括:

  • 消费电子:智能手机、平板的USB/耳机接口防护;
  • 工业控制:PLC模块、传感器节点的过压防护;
  • 通信设备:路由器、光模块的信号/电源端口防护;
  • 汽车电子:车载中控、胎压监测传感器的辅助防护(适配-40℃~+125℃汽车环境)。

四、封装与可靠性优势

1. DO-214AC(SMA)封装特点

  • 贴片式设计,支持回流焊、波峰焊,适配自动化生产;
  • 体积小巧,节省PCB空间,满足小型化产品需求;
  • 引脚间距合理,焊接可靠性高,虚焊率低。

2. 可靠性保障

  • 宽温耐受:-55℃~+150℃,可适应极端环境(如沙漠高温、极地低温);
  • 低功耗运行:1μA漏电流,静态无额外发热;
  • 重复浪涌耐受:可承受多次瞬态脉冲(常规应用下稳定性可靠)。

五、品牌与合规性说明

RUILON(瑞隆源)是国内专注过压防护器件的制造商,产品通过ISO 9001质量管理体系认证;SMAJ15A符合RoHS环保标准(无铅无镉),满足全球市场的环保要求,可直接用于出口产品设计。

SMAJ15A凭借小体积、宽温范围、精准的防护参数,成为消费电子、工业控制等领域过压防护的高性价比选择。

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