WMSIC Electronic Components

RUILON SMBJ6.5A

ModelSMBJ6.5A
PackageSMBJ(DO-214AA)
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 SMBJ6.5A
Type
RUILON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMBJ6.5A
Electronic Component
1
Package
SMBJ(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.232g
Electronic Component
1
Electronic Component
BM0264900799
Operating Temperature
55℃~+150℃
Voltage
11.2V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
500uA
Voltage(VBR)
8.3V

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

SMBJ6.5A(瑞隆源)瞬态抑制二极管产品概述

SMBJ6.5A是瑞隆源(RUILON) 推出的单向瞬态抑制二极管(TVS),采用SMBJ(DO-214AA)表面贴装封装,专为低电压电路的过压瞬态防护设计,能有效抑制雷击、浪涌、静电放电(ESD)等电磁干扰,广泛应用于消费电子、工业控制、汽车电子等领域。

一、产品基本信息与核心定位

SMBJ6.5A属于单向TVS器件,核心作用是在电路遭遇瞬态过压时快速导通,将电压钳位在安全范围内,保护后端敏感元器件(如MCU、传感器、接口芯片等)。产品标识清晰,型号中“SMB”对应封装类型,“6.5”代表反向截止电压(Vrwm)为6.5V,“A”表示单向极性,品牌为瑞隆源,符合行业标准命名规则。

二、核心电气参数详解

SMBJ6.5A的电气参数经过严格测试,关键指标如下(均基于标准测试条件):

  1. 反向截止电压(Vrwm):6.5V,即器件正常工作时的最大反向电压,此时器件处于截止状态,漏电流极小;
  2. 击穿电压(Vbr):8.3V,当反向电压达到此值时,器件开始从截止状态向导通状态转变,是过压防护的触发点;
  3. 钳位电压(Vc):11.2V(@Ipp=53.6A),即瞬态脉冲峰值电流下,器件两端的最大电压,此值越低,对后端电路的保护效果越好;
  4. 峰值脉冲电流(Ipp):53.6A(@10/1000μs波形),10/1000μs波形指脉冲上升时间10μs、半峰值时间1000μs,是TVS器件常用的浪涌测试波形,代表器件能承受的最大瞬态电流;
  5. 峰值脉冲功率(Ppp):600W(@10/1000μs波形),对应上述波形下的最大脉冲功率,是选型时需重点匹配的指标;
  6. 反向漏电流(Ir):500μA(@Vrwm),即正常工作电压下的反向漏电流,数值稳定,不影响电路正常运行;
  7. 工作温度范围:-55℃~+150℃,宽温设计能适应工业、汽车等极端环境温度。

三、封装与可靠性设计

SMBJ6.5A采用SMBJ(DO-214AA)表面贴装封装,具有以下优势:

  • 体积小巧(典型尺寸约2.7×2.2×1.1mm),适合高密度PCB布局,满足小型化产品需求;
  • 表面贴装工艺兼容回流焊、波峰焊,便于自动化生产,降低焊接成本;
  • 封装可靠性高,能承受机械应力与环境变化,符合工业级应用要求。

此外,产品防护等级符合IEC 61000-4-2(静电放电) 和IEC 61000-4-4(电快速瞬变脉冲群) 标准,可有效应对常见电磁干扰场景,提升电路EMC性能。

四、典型应用场景

SMBJ6.5A的低电压特性使其适合以下应用:

  1. 消费电子:手机、平板、笔记本电脑的USB、HDMI、音频接口防护,防止静电或浪涌损坏接口芯片;
  2. 工业控制:PLC、传感器、伺服驱动器的信号/电源接口,应对现场浪涌干扰;
  3. 汽车电子:车载12V系统中的5V/3.3V子电路(如仪表盘、车载娱乐)防护,适应宽温环境;
  4. 通信设备:路由器、交换机、光模块的信号接口,抑制雷电浪涌与电磁干扰;
  5. 电源电路:低电压直流电源(如5V/3.3V输出)的过压防护,防止后端负载损坏。

五、使用注意事项

  1. 极性识别:单向TVS需注意极性,通常“带色环端”为反向端,应接电路的高电位端(如电源正极),正向端接低电位端(如地);
  2. 功率匹配:电路中的最大浪涌功率需小于器件Ppp(600W),若浪涌功率较大,可并联多颗SMBJ6.5A(需确保均流);
  3. 焊接规范:回流焊温度需控制在260℃以内(持续时间≤10s),避免过热损坏器件;
  4. 环境要求:避免在腐蚀性气体、高湿度环境下长期使用,若需户外应用,需配合密封结构;
  5. 并联应用:并联时需保证每颗器件的电气参数一致,且布局对称,防止电流集中损坏。

SMBJ6.5A凭借其稳定的电气性能、宽温适应性与紧凑封装,成为低电压电路瞬态防护的高性价比选择,能有效提升电路的可靠性与抗干扰能力。

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