WMSIC Electronic Components

YANGJIE SMBJ85CAQ

ModelSMBJ85CAQ
PackageDO-214AA(SMB)
BrandYANGJIE
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

13 specifications

Core information

Product name
YANGJIE SMBJ85CAQ
Type
DO-214AA(SMB)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
SMBJ85CAQ
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
0.362g
Electronic Component
1
Electronic Component
BM0257562346
Electronic Component
Electronic Component
Electronic Component
3000

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

SMBJ85CAQ 瞬态抑制二极管(TVS)产品概述

SMBJ85CAQ是扬杰科技(YANGJIE)推出的一款双向瞬态抑制二极管(TVS),采用DO-214AA(SMB)表面贴装封装,专为电子系统的过压防护设计。其核心优势在于双向防护特性、宽温度适用范围及可靠的脉冲功率容量,可有效抑制静电放电(ESD)、浪涌脉冲等瞬态干扰,保护后级敏感电路免受损坏,广泛适配工业、汽车、通信等多领域应用场景。

一、核心身份与设计定位

SMBJ85CAQ属于扬杰TVS系列中的中功率防护器件,定位为通用型双向过压防护元件:

  • 类型:双向TVS,无需区分电路正负极,简化PCB布局与安装;
  • 封装:DO-214AA(SMB),表面贴装式,体积小巧(典型尺寸约2.9mm×5.1mm×1.0mm),适配高密度电路设计;
  • 品牌:扬杰科技,国内功率半导体龙头企业,产品经严格可靠性测试,供应稳定。

二、关键电性能参数解析

SMBJ85CAQ的电性能参数针对实际防护需求优化,核心参数及意义如下:

1. 电压类参数

  • 反向截止电压(Vrwm=85V):电路正常工作时,器件可长期承受的最大直流电压,此时器件处于截止状态,漏电流极小,不影响电路正常运行;
  • 击穿电压(Vbr=104V):电压超过此值时,器件开始导通,是过压防护的启动阈值,确保在电压异常上升时快速响应;
  • 钳位电压(Vc=137V):在额定峰值脉冲电流下,器件两端的最终电压值,该电压远低于后级电路的损坏阈值,可有效保护敏感元件(如MCU、传感器等)。

2. 脉冲防护能力

  • 峰值脉冲电流(Ipp=4.4A@10/1000μs):采用国际通用的10/1000μs浪涌波形(IEC 61000-4-5标准)测试,器件可承受的最大脉冲电流,反映其对强浪涌的耐受能力;
  • 峰值脉冲功率(Ppp=600W@10/1000μs):对应波形下的脉冲功率容量,计算方式为Vc×Ipp,直接体现器件的防护功率上限。

3. 其他关键参数

  • 反向漏电流(Ir=1μA):截止状态下的漏电流,数值极低,可忽略不计,避免对电路功耗造成额外影响;
  • 工作温度范围(-55℃~+175℃):覆盖工业级及汽车级温度要求,可在极端环境(如高温车载、低温户外)下稳定工作。

三、封装与可靠性设计特点

SMBJ85CAQ的DO-214AA(SMB)封装及可靠性设计,满足严苛场景的使用需求:

  • 封装优势:表面贴装式,适配自动化生产,安装效率高;塑料封装外壳绝缘性好,抗机械冲击能力强,可降低振动、碰撞对器件的影响;
  • 宽温可靠性:经过高低温循环、温度冲击等可靠性测试,确保在-55℃至+175℃范围内,电参数无明显漂移,长期工作稳定性可靠;
  • 快速响应:器件内部结构优化,瞬态响应时间达ns级,可在干扰发生瞬间快速导通钳位,避免干扰传递至后级电路。

四、典型应用场景与选型优势

1. 典型应用场景

  • 工业控制:PLC、传感器、电机驱动电路的过压防护,应对工业现场的浪涌干扰;
  • 汽车电子:车载通讯模块、传感器(胎压监测、摄像头)、电源管理系统的防护,适配车载宽温环境;
  • 通信设备:基站、路由器、交换机的ESD及浪涌防护,满足电磁兼容(EMC)要求;
  • 消费电子:显示器、电源适配器、智能家居设备的过压防护,提升产品可靠性。

2. 选型优势

  • 双向防护简化设计:无需区分正负极,减少电路设计复杂度,降低安装错误风险;
  • 宽温适配多场景:-55℃~+175℃范围覆盖工业、汽车等极端环境,无需额外选型;
  • 高功率容量可靠防护:600W峰值脉冲功率可应对常见强浪涌,保护效果显著;
  • 性价比突出:扬杰科技国产器件,供应稳定,成本低于部分进口品牌,适合批量应用。

五、总结

SMBJ85CAQ作为一款双向TVS防护器件,以其双向防护、宽温特性、高功率容量等核心优势,成为电子设备过压防护的常用选型。无论是工业控制的严苛环境,还是汽车电子的宽温需求,均能提供可靠的瞬态干扰抑制,有效提升电路的抗干扰能力与产品使用寿命。

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