WMSIC Electronic Components

Brightking SMAJ150A/TR13 SMAJ150A

ModelSMAJ150A/TR13
PackageSMA(DO-214AC)
BrandBrightking
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
Brightking SMAJ150A / TR13
Type
BRIGHTKING
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMAJ150A/TR13
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.122g
Electronic Component
1
Electronic Component
BM0264820909
Operating Temperature
65℃~+150℃
Voltage
243V
Current(Ir)
1uA
Voltage(VBR)
185V
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.

Brightking SMAJ150A/TR13 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心作用

SMAJ150A/TR13是台湾君耀(Brightking)推出的单向瞬态抑制二极管(TVS),专为150V等级电路的瞬态过压防护设计,核心作用是在电路遭遇雷击、静电放电(ESD)、开关浪涌等瞬态高压冲击时,快速导通并钳位电压至安全范围,避免后级敏感元器件(如IC、MOS管、传感器等)被击穿损坏。

作为TVS器件,其响应速度达ns级(典型<1ns),能在瞬态过压发生的瞬间完成防护动作,远快于普通稳压管,是工业控制、通信、车载等领域过压防护的主流选型之一。

二、关键电气参数解析

该型号的核心参数直接决定了其防护能力与适用场景,具体解析如下:

  1. 反向截止电压(Vrwm=150V):电路正常工作时,TVS反向偏置不导通,此为最大允许反向工作电压(无击穿),需匹配电路正常电压(如120V直流电源可安全使用)。
  2. 击穿电压(Vbr=185V):典型雪崩击穿电压,反向电压超此值时,TVS可逆导通进入防护状态(非破坏性击穿)。
  3. 钳位电压(Vc=243V):10/1000μs标准脉冲波形下,峰值电流(Ipp=1.6A)时的钳位电压,是后级电路可承受的最高安全电压,需确保后级器件耐压≥243V。
  4. 峰值脉冲功率(Ppp=400W):10/1000μs波形下的最大脉冲功率容量,可有效吸收雷击、开关浪涌等常见瞬态能量。
  5. 反向漏电流(Ir=1uA):正常工作时漏电流极低,不增加电路静态功耗,适合对功耗敏感的低功耗设备(如医疗监测电路)。
  6. 工作温度范围(-65℃~+150℃):覆盖工业级宽温,适应高寒、高温环境(如户外光伏、车载电子)。

三、封装与可靠性设计

SMAJ150A/TR13采用SMA封装(DO-214AC),小型贴片设计,尺寸约2.9mm×5.1mm×1.6mm,具有以下优势:

  • 高密度集成:贴片式适合紧凑PCB布局,常见于便携式设备、工业控制板;
  • 焊接可靠性:无铅无卤工艺符合RoHS,回流焊峰值温度260℃(持续10秒内),焊接兼容性好;
  • 环境适应性:封装耐湿热、机械冲击,通过君耀温度循环测试(-65℃~150℃循环1000次),满足工业/车载级可靠性要求。

四、典型应用场景

结合参数特性,该型号主要适用于:

  1. 工业控制电源:120V/150V直流电源输出端防护,避免开关浪涌损坏PLC、传感器;
  2. 通信接口:以太网、RS485等高压接口浪涌防护(部分工业通信电压接近150V);
  3. 车载辅助电源:120V等级车载电源防护,适应宽温与振动环境;
  4. 光伏逆变器低压侧:光伏组件串联后(约150V)的浪涌防护,保护逆变器前端器件;
  5. 医疗低功耗电路:监测设备传感器接口防护,低漏电流不影响精度。

五、选型与使用注意事项

  1. 选型匹配:
    • Vrwm≥电路正常工作电压(如130V电路选150V满足);
    • Ppp≥电路最大浪涌功率(需结合浪涌测试验证);
  2. 焊接要求:
    • 回流焊温度≤260℃,焊接时间≤10秒;
    • 手工焊用≤350℃低温焊锡,避免损坏器件;
  3. 电路布局:
    • 并联在被保护电路两端(正接电源正,负接电源负);
    • 靠近被保护端口,减少引线长度(降低电感,提升响应速度);
  4. 极性确认:单向TVS需严格注意极性,反接会导致正常工作时导通,损坏电路。

该型号凭借宽温、低漏、小封装等特性,成为150V等级电路过压防护的高性价比选型,广泛应用于工业、通信、车载等领域。

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