WMSIC Electronic Components

Bencent BV-SMAJ58A

ModelBV-SMAJ58A
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Bencent BV-SMAJ58A
Type
BENCENT
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BENCENT
Electronic Component
BV-SMAJ58A
Electronic Component
1
Package
SMA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.126g
Electronic Component
1
Electronic Component
BM0265088347
Operating Temperature
55℃~+150℃
Voltage
93.6V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
71.2V

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

BV-SMAJ58A 单向TVS二极管产品概述

一、产品定位与核心价值

BV-SMAJ58A是Bencent(槟城)推出的SMA封装单向瞬态抑制二极管(TVS),专为58V等级电路的过压防护设计,核心作用是快速钳位浪涌电压、吸收脉冲能量,避免敏感电子元件(如MCU、传感器、通信接口)因静电放电(ESD)、感应雷击或电源波动损坏。产品兼顾小体积、高脉冲耐受与宽温适应性,可覆盖工业控制、汽车电子、通信设备等多领域应用,是中等功率58V系统的经济高效防护方案。

二、关键电气性能参数解析

TVS的核心性能由电气参数决定,BV-SMAJ58A的参数精准匹配58V系统防护需求:

  1. 反向截止电压(Vrwm):58V
    电路正常工作时,二极管反向不导通的最大电压,需略高于电路额定工作电压(如50V系统),确保无额外功耗干扰电路正常运行。
  2. 击穿电压(Vbr):71.2V
    反向击穿的典型值,是TVS启动防护的临界电压——当浪涌电压超过此值时,二极管快速导通(响应时间ns级),将电压钳位在安全范围。
  3. 钳位电压(Vc):93.6V
    峰值脉冲电流(4.3A@10/1000us)下的最大电压,需低于被保护器件的最高耐压(如MCU耐压100V时,93.6V满足10%以上安全裕量)。
  4. 脉冲耐受能力
    • 峰值脉冲电流(Ipp):4.3A@10/1000us(模拟10μs上升、1000μs衰减的浪涌波形,符合IEC 61000-4-5标准);
    • 峰值脉冲功率(Ppp):400W@10/1000us,单颗即可应对多数中等功率浪涌场景(如工业电源瞬变、汽车总线干扰)。
  5. 反向漏电流(Ir):1uA
    反向截止时的漏电流极低,不会对电路功耗或信号完整性造成影响,适合低功耗系统应用。
  6. 防护标准
    符合IEC 61000-4-2静电放电防护要求,可有效应对人体放电(HBM,接触8kV/空气15kV)、机器放电(MM)等常见ESD场景。

三、封装与环境适应性

  1. SMA封装(DO-214AC)
    贴片式封装,尺寸仅约2.7mm×1.6mm×1.1mm,适合高密度PCB布局(如汽车电子模块、小型通信设备),支持常规回流焊、波峰焊工艺(焊接峰值温度≤260℃,持续时间≤10s)。
  2. 宽温工作范围
    工作温度:-55℃+150℃,满足工业级(-40℃+85℃)与汽车级(-40℃~+125℃)环境需求,可稳定运行于户外传感器、车载高温模块等场景。
  3. 机械可靠性
    采用塑封工艺,抗机械应力与环境腐蚀能力较强,批量生产一致性好,长期使用故障率低。

四、典型应用场景

BV-SMAJ58A的参数特性使其适配多类58V电压系统:

  1. 工业控制领域
    PLC输入输出接口、温度/压力传感器模块、伺服驱动器的浪涌防护,应对现场电磁干扰与电源波动(如电机启停产生的瞬变电压)。
  2. 汽车电子领域
    车载CAN/LIN总线接口、胎压监测(TPMS)模块、车载显示屏的静电与浪涌防护,符合汽车级宽温与可靠性要求。
  3. 通信设备领域
    路由器、交换机的以太网接口、光模块的ESD防护,满足IEC 61000-4-2静电标准,提升设备抗干扰能力。
  4. 消费电子高端应用
    高端电源适配器、专业显示设备(如医疗显示器)的接口防护,避免静电损坏核心芯片。

五、选型与使用注意事项

  1. 选型匹配原则
    • Vrwm需≥电路正常工作电压(如50V系统选58V,留13%裕量);
    • Vc需≤被保护器件的最大耐压(如MCU耐压100V时,93.6V满足安全要求)。
  2. 安装注意
    • 尽量靠近被保护元件并联,减少引线电感(提升响应速度至ns级);
    • 焊接时避免超过峰值温度(260℃/10s),防止封装开裂或性能下降。
  3. 扩展应用
    若脉冲功率需求超过400W,可并联多个BV-SMAJ58A(需选用相同批次产品,确保均流一致)。

综上,BV-SMAJ58A以小体积、高防护、宽温适配的特点,成为58V系统过压防护的实用选择,可有效提升电子设备的可靠性与抗干扰能力。

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