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Slkor SLESD5B5.0ST1G
Configuration
1 options
Configuration
Option 165426
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Slkor SLESD5B5.0ST1G
- Type
- SLKOR
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SLKOR
- Electronic Component
- SLESD5B5.0ST1G
- Electronic Component
- 1
- Package
- SOD-523
- Electronic Component
- Electronic Component
- Type
- ESD
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.025g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Cj- Capacitor
- 3pF
- Electronic Component
- BM0266187160
- Voltage
- 14V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-2
- Current(Ir)
- 2uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
Slkor SLESD5B5.0ST1G ESD防护二极管产品概述
一、产品定位与核心价值
SLESD5B5.0ST1G是Slkor（萨科微） 推出的单路双向ESD防护二极管，专为5V电压域的敏感电子电路设计，核心价值在于小封装、低电容、高可靠的静电放电（ESD）与电快速瞬变脉冲群（EFT）防护，解决消费电子、通信、工业控制等场景中常见的过压干扰问题，同时不影响高速信号传输完整性。
二、关键技术参数深度解析
该器件的核心参数均围绕“防护有效性”与“电路兼容性”优化，具体解析如下：
参数名称 数值 实际意义 极性 双向 无需区分正负，电路设计无需额外极性判断，简化布线，正反方向均能有效防护 反向截止电压（Vrwm） 5V 正常工作时最大反向电压，适配5V电源/信号线路（如MCU IO口、USB 5V供电） 击穿电压（Vbr） 9.4V 过压触发阈值，确保正常电压（≤5V）下器件截止，不影响电路功耗 钳位电压 14V 导通后将过压钳位在14V以内，保护后端IC（如常见IO口耐压≤6V，避免损坏） 峰值脉冲功率（Ppp） 35W@8/20μs 对应IEC 61000-4-4（EFT）测试波形，能承受35W脉冲冲击，防护能力可靠 反向漏电流（Ir） 2μA 截止状态下漏电流极低，不影响电路静态功耗，尤其适合低功耗设备 结电容（Cj） 3pF 关键高速信号适配参数，低电容可减少信号传输延迟与串扰，支持1Gbps以上速率 通道数 单路 适合单条信号/电源线的防护，按需并联可扩展多通道 防护等级 IEC 61000-4-2/IEC 61000-4-4 符合国际电磁兼容（EMC）标准，通过ESD（接触±8kV、空气±15kV）与EFT测试三、封装特性与应用适配性
该器件采用SOD-523超小型表面贴装封装，尺寸约1.6mm×0.8mm×0.6mm，具备以下优势：
- 高密度布局适配：与0402封装相当，适合手机、智能穿戴等空间极度受限的便携式设备；
- 自动化生产兼容：表面贴装工艺支持高速回流焊，降低生产难度与成本；
- 散热性稳定：小封装虽功率密度高，但35W脉冲功率为瞬时值，实际工作时无持续发热问题。
四、防护性能核心优势
- 双向防护无死角：无需考虑电路极性，正反方向过压均能快速泄放，避免接线错误导致防护失效；
- 高速信号无损：3pF低结电容对USB 2.0/3.0、HDMI、以太网等高速接口无明显信号衰减，保持传输完整性；
- EMC标准全覆盖：通过IEC 61000-4-2（ESD）与IEC 61000-4-4（EFT）认证，满足消费电子、工业设备的电磁兼容要求；
- 低功耗兼容：2μA漏电流对低功耗设备（如智能手环）的待机功耗影响可忽略，不额外增加电源负担。
五、典型应用领域
结合参数特性，该器件主要适配以下场景：
- 便携式电子：智能手机/手表的USB接口、音频口、充电口ESD防护；
- 高速通信：路由器/交换机的以太网端口、HDMI接口防护；
- 消费电子：平板、笔记本电脑的USB Type-C、DP接口防护；
- 工业控制：小型传感器模块、PLC输入输出端口的5V线路防护；
- 汽车电子：部分低电压（5V）辅助电路（如车载USB充电口）的ESD防护（需确认车规适配性）。
六、选型与使用注意事项
- 电压匹配：确保电路正常工作电压≤5V（Vrwm），避免器件长期导通；
- 电容需求：高速信号线路（如USB 3.0）优先选择，低速线路可兼容但非最优；
- 焊接工艺：遵循Slkor datasheet的回流焊温度曲线（如峰值温度260℃±5℃，时间≤40s），避免过热损坏；
- 并联扩展：多通道防护时可并联器件，需注意总电容不超过系统允许值。
SLESD5B5.0ST1G凭借“小封装+低电容+双向防护”的组合优势，成为5V电压域敏感电路ESD/浪涌防护的高性价比选择，广泛适配各类对空间、信号完整性要求严格的应用场景。
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