WMSIC Electronic Components

CJ ESDBM24VD3

ModelESDBM24VD3
PackageSOD-323
BrandCJ
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
CJ ESDBM24VD3
Type
CJ
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
ESDBM24VD3
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.031g
Electronic Component
1
Cj- Capacitor
35pF
Electronic Component
BM0264679925
Operating Temperature
55℃~+150℃
Voltage
48V
Electronic Component
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.

ESDBM24VD3 ESD 保护器件(SOD-323)产品概述

一、产品简介

ESDBM24VD3 是 CJ(江苏长电/长晶)推出的双向瞬态电压抑制(TVS)器件,封装为 SOD-323,专为静电放电(ESD)及瞬态浪涌保护设计。器件为双向结构,无极性,适合保护双向信号线与对地无极性的接口。工作温度范围宽(-55℃ 至 +150℃),适合消费电子、通信与工业环境下的可靠防护需求。

二、主要电气参数

  • 极性:双向
  • 反向截止电压 Vrwm:24 V
  • 击穿电压 VBR:32 V(标称)
  • 钳位电压 Vc:48 V(峰值)
  • 峰值脉冲电流 Ipp:9 A(IEC 61000-4-2 等效冲击条件下)
  • 峰值脉冲功率 Ppp:475 W
  • 反向漏电流 Ir:1 μA(常温下)
  • 结电容 Cj:35 pF(需考虑高速信号影响)
  • 工作温度:-55℃ ~ +150℃
  • 符合防护等级:IEC 61000-4-2(ESD 抗扰度)

三、典型应用场景

适用于对数据线、信号线、接口端口(如 USB、HDMI、UART、I2C/串行总线)、以太网非隔离侧、消费类电子端口保护、工业控制接口及便携设备等场合。因其双向特性,适合需互相承受正/负向瞬态的线路保护。

四、使用与 PCB 布局建议

  • 近接安装:将器件尽量靠近被保护的连接器或输入端,缩短从受扰点到 TVS 的走线长度,减少寄生电感。
  • 接地处理:若采用对地方案,确保地平面低阻抗且回路短;对于差分或对称双向线路,可直接跨线放置。
  • 串联元素:高频或长线应用可结合小阻值、差分变压器或串联电阻以分担冲击能量。
  • 对高速信号:结电容 35 pF 会对高速信号有影响,布局时评估带宽需求,必要时选用低容型 TVS 或放在保护器前端配合差分对称设计。
  • 焊盘与热量:SOD-323 小体积,注意焊盘设计和回流工艺以保证可靠焊接;大量冲击能量会引起局部温升,PCB 铜箔可帮助散热。

五、可靠性与标准

ESDBM24VD3 通过 IEC 61000-4-2 静电放电测试认证,能承受常见人体与接触放电冲击。长期工作温度范围宽,适合严苛环境。实际应用中仍建议按标准对系统级抗扰性进行验证(包括重复脉冲、浪涌与系统耦合条件)。

六、选型要点与注意事项

  • 工作电压匹配:确保 Vrwm ≥ 系统正常最大工作电压,以避免误触发。
  • 钳位与下游器件容限:钳位电压(48 V 峰值)应低于被保护器件可承受的最大瞬态电压。
  • 能量吸收能力:Ipp=9 A、Ppp=475 W 适合中低能量突发事件,若有更大雷击或浪涌需评估并行/级联保护策略。
  • 极性识别:双向器件无极性,便于替换和布局。
  • 高速接口:若对信号完整性要求高,应评估 35 pF 电容对串扰与带宽的影响,必要时选择低容型产品或改变保护拓扑。

总结:ESDBM24VD3 为一种小封装、双向、符合 IEC 61000-4-2 的 TVS ESD 保护器件,适合多场景接口防护。合理的 PCB 布局与系统级验证能显著提升保护效果与可靠性。

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