WMSIC Electronic Components

BORN SMBJ220A

ModelSMBJ220A
PackageSMB
BrandBORN
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
BORN SMBJ220A
Type
BORN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
SMBJ220A
Electronic Component
1
Package
SMB
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.195g
Electronic Component
1
Electronic Component
BM0264583408
Operating Temperature
55℃~+150℃
Voltage
356V
Current(Ir)
1uA
Voltage(VBR)
272V
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.

SMBJ220A瞬态抑制二极管(TVS)产品概述

SMBJ220A是伯恩半导体(BORN)推出的单向瞬态抑制二极管(TVS),采用SMB(DO-214AA)表面贴装封装,专为200V级电路的过压防护设计,具备宽温工作范围、低漏电流和强浪涌耐受能力,可有效抵御雷击、开关浪涌、静电放电等瞬态干扰,广泛应用于工业电源、汽车电子、通信设备等领域。

一、产品基本属性与典型应用场景

SMBJ220A属于单向TVS,仅在反向过压时导通,正向保持截止特性,适配单向过压防护需求。其典型应用场景包括:

  1. 工业电源系统:PLC电源端口、变频器输入电路,防护220V交/直流电源的浪涌干扰;
  2. 汽车电子:发动机控制单元(ECU)、车载充电系统,适配-55℃~+150℃宽温环境;
  3. 通信设备:基站电源模块、光纤收发器接口,抵御雷击浪涌;
  4. 消费电子:变频空调、高端家电电源滤波电路,提升抗干扰能力。

二、核心电气参数深度解析

SMBJ220A的参数经严格优化,平衡防护能力与电路兼容性,关键参数解析如下:

  • 反向截止电压(Vrwm=220V):正常工作时反向不导通的最大电压,需略高于被保护电路工作电压(如200V电路留10%余量),避免误触发;
  • 击穿电压(Vbr=272V):TVS导通的起始电压,约为Vrwm的1.24倍(符合TVS典型设计),确保过压时快速响应;
  • 钳位电压(Vc=356V):10/1000μs波形下的峰值电压,是保护核心指标——需低于被保护器件最大耐压(如400V器件可安全工作);
  • 峰值脉冲电流(Ipp=1.7A):10/1000μs波形下的最大浪涌电流,与Ppp(600W)匹配(356V×1.7A≈605W,误差源于测试条件);
  • 反向漏电流(Ir=1μA):Vrwm下漏电流极小,不影响正常电路功耗,提升长期稳定性;
  • 工作温度范围(-55℃~+150℃):覆盖汽车、工业恶劣环境,满足户外设备、发动机舱等场景需求。

三、封装与可靠性设计特点

SMBJ220A采用SMB表面贴装封装,具备以下优势:

  1. 紧凑体积:尺寸约2.5mm×3.5mm×1.8mm,适配高密度PCB设计,节省空间;
  2. 焊接兼容性:支持回流焊、波峰焊,焊接峰值温度≤260℃(时间≤30秒),适配常规SMT生产线;
  3. 高可靠性:伯恩半导体成熟工艺,漏电流稳定性强,-55℃~+150℃温度循环1000次无性能衰减;
  4. 标准符合性:符合IEC 61000-4-2(ESD)、IEC 61000-4-5(浪涌)等电磁兼容标准。

四、选型与使用注意事项

为确保防护效果,需注意以下要点:

  1. 参数匹配:Vrwm≥被保护电路最大工作电压,Vc≤被保护器件最大耐压;
  2. 布局要求:并联在被保护电路输入端口附近,减少引线电感(避免防护效果衰减);
  3. 焊接规范:避免温度过高/时间过长,防止封装损坏;
  4. 环境适配:宽温范围适配汽车、工业场景,但需远离腐蚀性气体;
  5. 失效判断:若漏电流>10μA、击穿电压<250V,器件已失效,需更换。

SMBJ220A凭借平衡的电气性能、紧凑封装和宽温可靠性,成为200V级电路过压防护的优选器件,可有效降低瞬态干扰对电路的损坏风险,提升设备稳定性。

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