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TECH PUBLIC SM24CANA-02HTG SM24CANA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TECH PUBLIC SM24CANA-02HTG
- Type
- TECH PUBLIC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TECH PUBLIC
- Electronic Component
- SM24CANA-02HTG
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Electronic Component
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.003g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Cj- Capacitor
- 10pF；7pF
- Electronic Component
- BM0226539325
- Operating Temperature
- 55℃~+125℃
- Voltage
- 40V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-5；IEC 61000-4-2
- Current(Ir)
- 80nA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SM24CANA-02HTG 产品概述
SM24CANA-02HTG 为台舟电子（TECH PUBLIC）推出的一款面向高速差分信号线（如 CAN 总线）和一般数据线的双路双向瞬态抑制器（TVS/ESD）。器件采用 SOT-23 封装，体积小，可靠性高，专用于抑制静电放电与浪涌冲击，保护下游敏感器件和接口电路。
一、主要参数一览
- 钳位电压（Vclamp）：40 V（典型峰值钳位）
- 工作温度：-55 ℃ ~ +125 ℃
- 击穿电压（Vbr）：26.7 V
- 反向截止电压（Vrwm）：24 V
- 峰值脉冲功率（Ppp）：140 W
- 峰值脉冲电流（Ipp）：4 A
- 反向漏电流（Ir）：80 nA（常温典型）
- 结电容（Cj）：10 pF；7 pF（测试条件或通道表征有所差异，见器件资料）
- 通道数：双路；极性：双向
- 防护等级/标准：满足 IEC 61000-4-2（ESD）、IEC 61000-4-4（EFT）、IEC 61000-4-5（浪涌）
- 封装：SOT-23
二、器件特性与保护性能
SM24CANA-02HTG 在正常工作电压下（Vrwm = 24 V）保持高阻抗状态，几乎不影响信号传输；遇到瞬态过压时快速进入导通，将能量钳位到约 40 V，从而保护后端电路免受高电压冲击。器件针对差分数据线设计，双路双向结构适合 CAN 等差分总线，且低结电容（7–10 pF）对高速信号的影响小，能兼顾保护与信号完整性。
三、典型应用场景
- 汽车 CAN/LIN 总线接口保护
- 工业控制与现场总线（如 24 V 系统）防护
- 通讯设备、以太网端口、电源接口的浪涌与静电防护
- 消费类与工控类线路板上靠近外部连接器的保护元件
四、设计与布局建议
- 将器件尽量靠近受保护的连接器或外部引脚放置，以降低印制板走线寄生电感和阻抗。
- 对高能量浪涌场合，配合接地面的多过孔（vias）以提高散热与能量导入能力。
- 对高速差分信号，注意保持走线对称并最小化到 TVS 的并联电容对信号速率的影响。
- 避免让器件长期承受超规格的连续能量，设计时应参考实际冲击波形并留有裕量。
五、注意事项与选型要点
- 确认系统最大工作电压应低于 Vrwm（24 V），而短时冲击能量需在器件 Ppp 与 Ipp 能承受范围内。
- 结电容会影响高速信号，若系统对抖动/上升时间极为敏感，请在评估样片后确认性能。
- 器件为过压瞬态保护元件，不可作为限流或稳压元件长期承载高功率负载。
- 工作环境温度范围宽，适用于严苛工业与汽车级应用，但最终可靠性应结合整机测试验证。
总结：SM24CANA-02HTG 是一款针对差分数据线的双路双向 TVS 器件，结合低结电容、低漏电、高脉冲功率与汽车级工作温度，适用于需要兼顾高速信号传输与可靠静电/浪涌防护的场景。选型时请依据具体系统电压、冲击波形与信号完整性要求做进一步验证。
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