WMSIC Electronic Components

Bencent BV-SMAJ6CA

ModelBV-SMAJ6CA
PackageSMA
BrandBencent
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
Bencent BV-SMAJ6CA
Type
BENCENT
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BENCENT
Electronic Component
BV-SMAJ6CA
Electronic Component
1
Package
SMA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.13g
Electronic Component
1
Electronic Component
BM0258756490
Operating Temperature
55℃~+150℃
Voltage
10.3V
Electronic Component
IEC 61000-4-2
Current(Ir)
800uA
Voltage(VBR)
6.67V

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

BV-SMAJ6CA 产品概述

一、产品简介

BV-SMAJ6CA 是 Bencent(槟城) 出品的一款双向瞬态抑制二极管(TVS),采用 SMA 封装,专为抑制电源与信号线上瞬态过电压和静电放电(ESD)冲击而设计。该器件在工作时能快速钳位突入的高能脉冲,保护下游敏感元器件不被破坏,适用于工业、通信、消费电子以及汽车级的瞬态保护需求。

二、主要电气参数与含义

  • 极性:双向(Bidirectional),可对正负向瞬态均能抑制,适合交流或双向数据线保护。
  • 反向截止电压 Vrwm:6V(稳态工作电压,上限应不超过此值)。
  • 击穿电压 Vbr:6.67V(器件开始进入导通的电压)。
  • 钳位电压 Vclamp:10.3V(在指定脉冲条件下将电压钳位至该值附近,保护受体电路)。
  • 峰值脉冲电流 Ipp:38.8A(在 10/1000μs 脉冲下最大允许瞬态电流)。
  • 峰值脉冲功率 Ppp:400W @ 10/1000μs(脉冲能量承受能力指标,表明可吸收较大能量的浪涌)。
  • 反向电流 Ir:800μA(在 Vrwm 下的漏电流,需结合系统功耗考量)。
  • 工作温度:-55℃ 至 +150℃(宽温区间,适合多种环境)。
  • 防护等级:满足 IEC 61000-4-2(静电放电标准),用于 ESD 抗扰设计验证。

三、关键性能亮点

  • 高能量承受能力:400W (10/1000μs) 的脉冲功率,能吸收工业雷击浪涌与各种脉冲能量。
  • 低钳位电压:10.3V 的钳位电平有利于在高能冲击时将被保护节点电压限制在安全范围内,减少下游器件受损风险。
  • 宽温稳定性:-55℃ 至 +150℃ 的工作温度保证在恶劣环境下依然可靠工作。
  • 双向保护:对正负极瞬态均有效,适合双向数据线、交流或反向可能出现的瞬态场景。

四、典型应用场景

  • USB、CAN、RS‑485、以太网等接口线路的瞬态保护(注意高速数据线需确认器件电容对信号完整性的影响)。
  • 电源总线(例如 5V 或稍高工作电压)和外围模块的浪涌/过压保护。
  • 工业控制设备、通信设备、楼宇自动化与测控终端的前端防护。
  • 对需要双向抑制(可能出现正负瞬变)的场合,如某些传感器线缆或双向供电路径。

五、封装与机械特性

  • 封装:SMA(表面贴装),适配常见 PCB 布局与回流焊工艺。
  • 安装提示:器件应尽量靠近受保护端口或连接器放置,走线尽量短且粗,保证低电感路径以提高抑制效果。

六、设计与选型建议

  • Vrwm 的选择:Vrwm 应不低于正常工作电压但应尽量接近以保证有效钳位——对于 5V 系统,6V 的 Vrwm 是常见选择。
  • 钳位电压匹配:确保 Vclamp(10.3V)低于被保护器件允许的最大耐压。若受体对过压敏感应选择钳位更低的器件或在前端增加限流元件。
  • 漏电流考虑:800μA 的漏电在低功耗或待机电路中可能需要评估其对系统功耗的影响。
  • 高频信号影响:若用于高速数据线,需确认器件的寄生电容与频率响应,必要时选用低电容型 TVS。
  • 热与能量管理:在可能出现连续或多次浪涌的场合,结合熔断器、PTC 或限流电阻以分担能量并保护 TVS 本体。

七、可靠性与环境适配

BV-SMAJ6CA 具备工业级温度范围与对 ESD 的标准级防护认证,适用于大多数工业与商业应用。在高温或长期反复冲击场景下,应做加速寿命与脉冲循环测试以验证整体系统可靠性。

八、常见注意事项

  • 双向器件无极性,但安装方向应符合 PCB 布局最佳实践以缩短回路。
  • 若系统对漏电流敏感,建议在选型阶段进行样品验证。
  • 在高能雷击或多次冲击环境中,考虑配合浪涌抑制器(SPD)或多级防护方案以提升整体防护等级。

BV-SMAJ6CA 是一款适配面广、能量承受能力强的双向 TVS,适合需要稳健瞬态保护的电源与信号接口。选型时结合系统工作电压、功耗、频率特性与可靠性要求进行验证与布局优化,可显著提高整机的抗扰度与稳定性。

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