WMSIC Electronic Components

CJ ESDBL7V0D3

ModelESDBL7V0D3
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 ESDBL7V0D3
Type
CJ
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
ESDBL7V0D3
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.01g
Electronic Component
1
Cj- Capacitor
9pF
Electronic Component
BM0230015471
Operating Temperature
55℃~+150℃
Voltage
17V
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.

ESDBL7V0D3 Z — 双向ESD防护二极管产品概述

一、产品简介

ESDBL7V0D3 Z 是江苏长电/长晶(CJ)推出的一款双向瞬态静电放电(ESD)保护二极管,封装为 SOD-323。该器件专为敏感信号线和接口提供高效的浪涌和静电放电抑制,具有低漏电、低结电容和宽工作温度范围,适合用于多种消费电子与工业接口保护场景。

主要参数一览:

  • 极性:双向
  • 反向截止电压(Vrwm):7 V
  • 击穿电压:7 V
  • 钳位电压(典型):17 V
  • 峰值脉冲电流(Ipp):5 A
  • 峰值脉冲功率(Ppp):85 W
  • 反向电流(Ir):1 µA
  • 结电容(Cj):9 pF
  • 工作温度:-55 ℃ 至 +150 ℃
  • 防护等级:符合 IEC 61000-4-2(ESD)规范
  • 类型:ESD 防护二极管
  • 封装:SOD-323
  • 品牌:CJ(江苏长电/长晶)

二、主要特性与优势

  • 双向结构:可在无固定极性的信号线上工作,直接夹位在两条信号线上,适合差分或双向数据接口(如部分串口、总线或双向充电线等)。
  • 低漏电流:典型反向电流仅 1 µA,有利于电池供电与低功耗系统,避免对敏感电路引入额外偏置。
  • 适中结电容:约 9 pF,平衡了防护能力与信号完整性,适用于多数低至中速数字信号线与控制接口。对于超高速接口(如高速 USB/PCIe 等)需评估 Cj 对信号带宽的影响。
  • 高能量吸收能力:峰值脉冲电流 5 A、峰值脉冲功率 85 W,可抵御常见的静电放电和瞬态浪涌事件,钳位电压 17 V 能有效限制到受保护器件的应力。
  • 宽温度范围与工业级可靠性:-55 ℃ 至 +150 ℃ 的工作温度满足多数工业与汽车旁路的温度需求(请参考制造商具体可靠性数据以确认应用等级)。

三、典型应用场景

  • USB(非高速或需评估电容)、UART、RS-485、CAN 总线等双向或差分接口保护
  • 手机、平板与便携设备的按键/接口保护
  • 工业控制设备、传感器输入口、I/O 接口的静电与浪涌防护
  • 智能家居与消费电子设备的外部连接口保护

四、安装与PCB布局建议

  • 靠近被保护的连接器或输入端放置器件,尽量缩短走线长度,以减小寄生电感与串扰。
  • 对于需要接地的保护方案,保持器件与地之间的低阻抗连接,尽可能使用过孔将地面层连接至器件附近的地平面。
  • 在 SOD-323 封装周围预留适当焊盘和热量散布区域,按制造商的封装图和焊盘建议设计焊盘尺寸。
  • 若电路对结电容敏感,可在原型阶段评估 ESDBL7V0D3 的 Cj 对信号速率和眼图的影响,必要时考虑更低电容型号或外置滤波。

五、选型注意事项

  • 评估工作电压:Vrwm=7 V 适合用于工作电压低于该值的线路。对于更高工作电压的应用,应选择更高 Vrwm 的保护器件。
  • 钳位电压和下游器件:钳位电压 17 V 为典型值,需验证该电压对被保护器件的安全性是否满足。
  • 峰值脉冲能力:Ipp=5 A 与 Ppp=85 W 能处理常见的 ESD 浪涌,但对于更高能量脉冲或雷击类事件,应采用级联保护或更高能量等级的保护元件。
  • 结电容对信号完整性的影响:9 pF 在许多控制和低速信号中是可接受的;对高频要求严格的接口(如高速差分对)建议进行信号完整性仿真或选择更低 Cj 的器件。

六、可靠性与合规

  • 器件符合 IEC 61000-4-2 ESD 防护等级(具体级别请参考完整数据手册),适用于常见静电放电环境。
  • 工作温度范围宽,适合多种环境;实际可靠性与寿命应以厂方的加速寿命与湿热测试报告为准。

七、封装与采购信息

  • 封装:SOD-323,适合自动贴片生产。
  • 品牌与型号:CJ(江苏长电/长晶) — ESDBL7V0D3 Z。
  • 采购时建议索取完整数据手册、封装图和焊接回流曲线,以及器件在不同脉冲条件下的钳位曲线和能量额定曲线。

如需更详细的电气参数曲线、封装图或在具体接口上的应用建议,我可以根据您的应用场景(接口类型、工作电压、允许的最大插入损耗/结电容等)提供进一步的选型与布板建议。

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