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Leiditech SMC15
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Leiditech SMC15
- Type
- LEIDITECH
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LEIDITECH
- Electronic Component
- SMC15
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.017g
- Electronic Component
- 1
- Cj- Capacitor
- 60pF
- Electronic Component
- BM0263672661
- Operating Temperature
- 55℃~+125℃
- Voltage
- 38V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-5；IEC 61000-4-2
- Current(Ir)
- 1uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMC15系列TVS瞬态抑制二极管产品概述
一、产品定位与核心功能
SMC15是雷卯电子（Leiditech）推出的双向TVS瞬态抑制二极管，核心定位为电子电路的过压防护器件，主要用于抑制静电放电（ESD）、电快速瞬变脉冲群（EFT）及浪涌等瞬态过压，保护后端敏感元件（如MCU、传感器、通信芯片）免受损坏，适配≤15V的中低电压线路。
二、关键参数深度解析
1. 电压与击穿特性
- 反向截止电压（Vrwm）：15V
正常工作时反向不导通的最大电压，要求后端电路工作电压≤15V，避免额外漏电流干扰。 - 击穿电压（Vbr）：16.7V
反向击穿典型阈值，比Vrwm高约11%，确保工作电压与击穿电压有合理裕量，防止误触发。 - 钳位电压（Vc）：24V
遭遇8/20us峰值脉冲时，将过压钳位至24V以内，是防护效果的核心指标——数值越低，对后端电路保护越可靠。
2. 脉冲与功率特性
- 峰值脉冲功率（Ppp）：350W@8/20us
8/20us为国际标准浪涌波形（前沿8μs、半峰值时间20μs），350W峰值功率可应对常见浪涌（如电源瞬变、雷击感应），满足多数民用/工业场景需求。
3. 电学与环境特性
- 结电容（Cj）：60pF
中等结电容，适配低速信号线路（如USB 1.1、串口UART、模拟传感器），对信号完整性影响小；高频线路需结合带宽评估。 - 反向漏电流（Ir）：1μA
漏电流极低，不增加电路功耗或干扰信号，提升设备稳定性。 - 工作温度：-55℃~+125℃
宽温设计覆盖工业/车载环境，极端温度下长期可靠工作。
三、封装与可靠性设计
SMC15采用SOT-23封装，尺寸小巧（2.9×1.6×1.1mm），适配高密度PCB布局（如便携设备、小型模块）；雷卯优化了封装密封性与结温控制，确保多次瞬态冲击后性能稳定，符合行业可靠性标准。
四、防护等级与认证
产品通过多项国际EMC标准测试，覆盖：
- IEC 61000-4-2（ESD）：接触放电±8kV、空气放电±15kV，抑制人体静电干扰；
- IEC 61000-4-4（EFT）：承受2kV/5kHz脉冲群，避免数字电路误触发；
- IEC 61000-4-5（浪涌）：满足4kV/2Ω测试，应对电源/信号线路浪涌冲击。
五、典型应用场景
- 工业控制：PLC、传感器模块I/O接口防护；
- 便携电子：手机、平板USB/音频接口ESD防护；
- 汽车电子：车载传感器、CAN总线浪涌/ESD防护；
- 通信设备：路由器RS485接口防护。
六、核心优势总结
- 双向防护：适配差分总线等双向线路，无需区分正负极；
- 宽温可靠：-55℃~+125℃满足工业/车载恶劣环境；
- 小型化：SOT-23封装节省PCB空间；
- 全场景覆盖：ESD、EFT、浪涌一站式防护；
- 低干扰：1μA漏电流+60pF结电容，对正常电路影响极小。
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