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Jingdao Microelectronics SMDJ30CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic SMDJ30CA
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- SMDJ30CA
- Electronic Component
- 1
- Package
- SMC
- Electronic Component
- Electronic Component
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.381g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Electronic Component
- BM0264926002
- Operating Temperature
- 65℃~+150℃
- Voltage
- 48.4V
- Current(Ir)
- 2uA
- Voltage(VBR)
- 36.8V
- 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.
SMDJ30CA 瞬态抑制二极管（TVS）产品概述
一、产品定位与核心功能
SMDJ30CA是晶导微电子推出的单路表面贴装瞬态抑制二极管（TVS），核心作用是针对电路中的瞬态过压（如雷击浪涌、静电放电、开关瞬态等）进行快速钳位防护，避免后级敏感元器件（如MCU、传感器、通信芯片）因过压损坏。其参数针对中等功率浪涌场景优化，适配工业、汽车、通信等多领域的电路保护需求。
二、关键电气参数详解
SMDJ30CA的电气参数精准匹配常见浪涌防护场景，核心指标如下：
- 反向截止电压（Vrwm）：30V
指器件正常工作时，反向可长期承受的最大直流电压，确保电路在额定电压范围内稳定运行时无反向导通风险。 - 钳位电压（Vc）：48.4V
遭遇10/1000μs标准浪涌脉冲时，器件可快速将过压钳位至该值，有效限制后级电路电压峰值，保护敏感元件。 - 峰值脉冲电流（Ipp）：62A@10/1000μs
对应国际标准浪涌波形（前沿10μs、半峰值时间1000μs）的最大耐受脉冲电流，可应对常见中功率浪涌冲击。 - 峰值脉冲功率（Ppp）：3kW@10/1000μs
同波形下的最大脉冲功率耐受能力，是衡量浪涌防护能力的核心指标之一。 - 击穿电压（Vbr）：36.8V
反向击穿典型电压，击穿后快速进入钳位状态，响应时间达ns级（远快于普通保护器件）。 - 反向漏电流（Ir）：2μA
正常工作电压下漏电流极小，不会额外增加电路功耗，对系统效率影响可忽略。
三、封装与环境适应性
SMDJ30CA采用SMC表面贴装封装，尺寸紧凑（典型值：2.9×2.4×1.1mm），适配高密度PCB设计，支持自动贴装工艺，生产效率高。
工作温度范围覆盖**-65℃至+150℃**，宽温特性使其可稳定工作于极端环境（如工业高温车间、户外低温场景、汽车发动机舱附近），满足严苛的可靠性要求。
四、典型应用场景
SMDJ30CA的参数特性使其适配多种过压防护场景：
- 工业控制：PLC输入输出端口、传感器接口、电机驱动电路的浪涌防护；
- 汽车电子：车灯控制模块、车身传感器（胎压、温度）、辅助电源电路的过压保护；
- 通信设备：以太网端口、串口、无线模块（WiFi/蓝牙）的静电及浪涌防护；
- 消费电子：移动电源、充电器、智能家电的电源接口防护。
五、产品优势特点
- 低功耗设计：反向漏电流仅2μA，不影响系统正常功耗；
- 高可靠性：宽温范围+SMC封装，适配严苛环境，晶导微电子制造工艺保障长期稳定性；
- 快速响应：ns级响应时间，瞬间抑制瞬态过压，保护效率远高于压敏电阻等器件；
- 成本效益：中等功率浪涌场景下性能均衡，性价比突出，替代进口器件的优选方案。
SMDJ30CA凭借其均衡的性能、宽温适应性及紧凑封装，成为多领域电路过压防护的可靠选择。
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