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Jingdao Microelectronics SMCJ64A
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic SMCJ64A
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- SMCJ64A
- Electronic Component
- 1
- Package
- SMC(DO-214AB)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.381g
- Electronic Component
- 1
- Electronic Component
- BM0230630735
- Operating Temperature
- 55℃~+150℃
- Voltage
- 103V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 78.6V
- 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.
SMCJ64A TVS 二极管（SMC / DO-214AB）产品概述
一、产品简介
SMCJ64A 为晶导微电子推出的瞬态电压抑制（TVS）二极管，封装为 SMC（DO-214AB）。器件设计用于吸收电源与信号线上短时浪涌能量，保护下游电子元件免受雷击、开关瞬变和电气干扰引起的过压损坏。工作温度范围宽（-55℃ 至 +150℃），适合工业级和苛刻环境应用。
二、主要电气参数
- 反向截止电压 Vrwm：64V（推荐持续反向工作电压上限）
- 击穿电压 Vbr：78.6V（标称）
- 钳位电压 Vcl：103V（在脉冲条件下实现保护电压）
- 峰值脉冲电流 Ipp：14.6A（10/1000μs 波形）
- 峰值脉冲功率 Ppp：1.5kW（10/1000μs 波形）
- 反向漏电流 Ir：1μA（常温下）
（上述参数为典型/标称值，使用时应参考厂家完整数据手册以获取测试条件与公差。）
三、产品特点与优势
- 高能量吸收能力：10/1000μs 波形下可承受高达1.5kW 的瞬态功率，适用于配电和通信线路的浪涌防护。
- 低漏电流与稳定击穿：1μA 的低漏电流有利于降低静态损耗，78.6V 的击穿电压保证可靠触发保护。
- 宽温工作：-55℃ 至 +150℃ 的温度范围满足工业、通信和汽车电子在不同环境下的可靠性要求。
- 标准封装：SMC（DO-214AB）方便波峰/回流焊安装，便于批量生产和更换维护。
四、典型应用场景
- 48V/60V 直流配电系统与逆变器输入侧的浪涌保护；
- 工业控制、PLC 和变频器的电源防护；
- 通信基站、电信线路与接口防雷；
- 电池管理与储能系统的过压浪涌防护。
五、封装与热管理
SMC（DO-214AB）封装具有较好的热容量与散热路径，但在高能量冲击下仍需合理布局：靠近受保护线端点放置，确保低阻抗走线和足够铜箔散热面积；必要时在PCB底层加铜或增加散热孔以提升脉冲能量承受能力。
六、选型与使用注意事项
- 确认单向或双向型号，依据被保护电路的直流偏置选择；
- 钳位电压与系统允许的最大电压匹配，避免在钳位下仍损坏被保护器件；
- 注意浪涌波形与能量（10/1000μs 常用于配电类冲击），若现场有更短脉宽的冲击（8/20μs 等），需按对应参数校核；
- 焊接工艺参照厂家手册，避免过热和机械应力，保证长期可靠性。
如需针对具体应用（如48V 输入防护、通信接口或汽车电子）给出接线示意、热设计建议或替代型号对比，我可以基于电路条件提供更详细的设计建议。
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