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Brightking SMCJ51A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMCJ51A
- Type
- BRIGHTKING
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Brightking
- Electronic Component
- SMCJ51A
- Electronic Component
- 1
- Package
- SMC(DO-214AB)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.38g
- Electronic Component
- 1
- Electronic Component
- BM0257253438
- Operating Temperature
- 65℃~+150℃
- Voltage
- 82.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 56.7V
- 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.
Brightking SMCJ51A TVS二极管产品概述
一、产品定位与核心类型
SMCJ51A是台湾君耀（Brightking）推出的单向瞬态抑制二极管（TVS），属于过压保护器件范畴，核心作用是抑制电路中的瞬态浪涌电压（如雷击、静电放电、电源波动等），避免后级敏感电子元件（如IC、传感器）被过压损坏，是电子设备中常用的基础防护器件。
二、关键电气参数解析
该器件的核心参数直接决定防护能力，具体解析如下：
- 反向截止电压（Vrwm）：51V
常态工作时反向截止（无电流导通），确保电路在51V以下正常电压范围内稳定运行，不干扰原有功能。 - 击穿电压（Vbr）：56.7V
当反向电压超过56.7V时，器件由截止转为导通，开始吸收浪涌能量，进入过压保护模式。 - 钳位电压（Vc）：82.4V
在峰值脉冲电流18.2A冲击下，可将电路电压钳位在82.4V左右（远低于敏感元件损坏阈值），有效限制过压幅度。 - 峰值脉冲电流（Ipp）：18.2A
单次瞬态脉冲下的最大耐受电流，反映对大电流浪涌的承受能力。 - 峰值脉冲功率（Ppp）：1.5kW@10/1000μs
基于工业标准浪涌波形（上升时间10μs、半峰值时间1000μs），表示该波形下可承受1.5kW脉冲功率，能应对常见强浪涌。 - 反向漏电流（Ir）：1μA
常态反向电压下漏电流极小，不增加电路静态功耗，不影响系统效率。
三、封装与品牌背景
- 封装形式：SMC（DO-214AB）
SMC是表面贴装封装，尺寸紧凑（典型6.0×4.0×2.5mm），适合高密度PCB设计；支持自动贴片机焊接，提高生产效率。 - 品牌：Brightking（台湾君耀）
台湾君耀是全球领先的过压保护供应商，产品覆盖TVS、压敏电阻等，广泛应用于汽车、工业、通信领域，以可靠性高、一致性好著称，部分产品通过AEC-Q101汽车级认证。
四、工作环境与可靠性
SMCJ51A工作温度范围为**-65℃~+150℃**，覆盖工业控制、汽车电子等领域的极端环境（如汽车发动机舱高温、低温地区户外设备），可长期稳定工作。单向极性设计明确安装方向，避免反向安装导致防护失效，进一步提升可靠性。
五、典型应用场景
该器件因性能均衡，适用于以下场景：
- 工业控制：PLC、传感器接口、伺服驱动器，抑制电源浪涌/静电；
- 汽车电子：车载电源、车灯、胎压监测，应对启动/熄火电压波动；
- 通信设备：路由器、交换机、基站电源，抑制雷击浪涌/静电；
- 消费电子：充电器、显示器接口、笔记本电源，防止静电/浪涌损坏。
六、产品优势总结
- 宽温适应：-65℃~+150℃适配极端环境；
- 强浪涌耐受：1.5kW峰值功率应对高强度浪涌；
- 低功耗：1μA漏电流不影响电路效率；
- 小封装：SMC封装便于高密度集成；
- 品牌保障：Brightking专业品质降低售后风险。
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