WMSIC Electronic Components

TECH PUBLIC SM24CANB-02HTG SM24CANB

ModelSM24CANB-02HTG
PackageSOT-23
BrandTECH PUBLIC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TECH PUBLIC SM24CANB-02HTG
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
SM24CANB-02HTG
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.032g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
17pF
Electronic Component
BM0226539057
Voltage
50V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
80nA
Voltage(VBR)
32V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SM24CANB-02HTG 产品概述

一、产品简介

SM24CANB-02HTG 是 TECH PUBLIC(台舟电子)推出的双通道双向瞬态抑制二极管(TVS),专为总线与接口线路的浪涌与静电保护而设计。器件采用 SOT-23 小型封装,集成两路双向保护,适用于空间受限且对信号完整性有较高要求的系统,尤其适合 CAN 总线和其它差分数据线保护应用。

二、关键电气参数

  • 反向工作电压 Vrwm:24 V
  • 击穿电压(Breakdown):约 32 V
  • 钳位电压(Clamping):典型 50 V(在额定脉冲条件下)
  • 峰值脉冲功率 Ppp:250 W @ 8/20 μs
  • 峰值脉冲电流 Ipp:5.5 A @ 8/20 μs(典型等级)
  • 结电容 Cj:约 17 pF(每通道,低电容设计,有利于高速信号)
  • 反向漏电流 Ir:约 80 nA
  • 通道数:双路(双向)
  • 防护等级:符合 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)与 IEC 61000-4-5(浪涌)
  • 封装:SOT-23

三、性能与优势

  • 低结电容(约 17 pF):对高速差分信号干扰小,可以在不显著影响信号上升沿与波形的前提下提供保护,非常适合 CAN、LIN、RS-485、USB 等通信接口。
  • 双通道双向保护:单一 SOT-23 器件即可同时保护数据对(例如 CAN_H 与 CAN_L),节省 PCB 面积并简化布局。
  • 高能量吸收能力:250 W(8/20 μs)峰值功率与约 5.5 A 峰值脉冲电流,使其能够应对典型的线路浪涌与感性负载切换所产生的瞬态冲击。
  • 严格的电磁兼容性(EMC)符合性:满足 IEC 61000 系列抗扰度测试要求,有助于通过系统级 EMC 认证。
  • 低漏电流(80 nA):在保持保护能力的同时,对待机与低功耗系统影响小。

四、典型应用场景

  • 汽车电子(车载网络 CAN 总线防护)
  • 工业现场总线与楼宇控制系统(防止浪涌与脉冲干扰)
  • 数据通信接口保护(CAN、CAN-FD、RS-485 等)
  • 电源线与信号线混合板级保护
  • 消费类与工业类设备的端口 ESD 防护

五、封装与布板建议

  • 封装:SOT-23,适合表面贴装工艺,便于批量生产与手工焊接。
  • 布局建议:器件应靠近受保护的连接器或线缆入口处布置,走线尽量短,接地回路低阻并直接连接到器件地(或系统地),避免长回流路径以提高保护效率。对差分线建议在保护器件前保留必要的共模阻抗元件(如共模电感或串联阻抗)以配合保护。
  • 热管理:SOT-23 封装体积小,长时间高能量冲击可能导致温升,设计时应考虑浪涌次数与系统散热能力。

六、使用注意事项

  • 本器件为瞬态保护器件,不可作为长期电流承载或稳压器件使用。
  • 在高频或超高速应用中,仍需验证结电容对信号链的具体影响并做相应调试。
  • 若应用于汽车关键系统,请结合系统级规范(如 ISO 或 AEC 标准)进行完整验证。

SM24CANB-02HTG 提供了在小尺寸下兼顾低电容与高能量吸收能力的平衡,是保护差分数据总线、提高系统抗扰度的理想选择。若需引脚安排、典型电气特性曲线或样片评估,请联系 TECH PUBLIC(台舟电子)获取完整技术资料与支持。

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