WMSIC Electronic Components

JJW JEB03D5

ModelJEB03D5
PackageSOD-523
BrandJJW
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
JJW JEB03D5
Type
JJW
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JJW
Electronic Component
JEB03D5
Electronic Component
1
Package
SOD-523
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.052g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
20pF
Electronic Component
BM0258677576
Voltage
12V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;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.

JEB03D5 瞬态抑制二极管(TVS)产品概述

一、产品简介

JEB03D5 是捷捷微(JJW)推出的一款小型双向瞬态抑制二极管(TVS),封装为 SOD-523,专为对抗静电放电(ESD)、电快速脉冲群(EFT)与浪涌(Surge)等瞬态过电压事件而设计。器件属于单路保护元件,适用于对 3.3V 等低电压工作点的电子接口提供高可靠性保护。

二、关键参数

  • 钳位电压(Vc,典型):12 V
  • 反向截止电压/工作电压(Vrwm):3.3 V
  • 峰值脉冲功率(Ppp):80 W(8/20 μs 波形)
  • 极性:双向(可对正负瞬态对称保护)
  • 通道数:单路
  • 结电容(Cj):20 pF
  • 反向漏电流(Ir):1 μA(典型,常温条件下)
  • 防护等级/标准:满足 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(Surge)
  • 封装:SOD-523(小型表贴)

三、主要特性与优势

  • 小封装占板面积小,适合移动设备、消费类电子及便携式模块等空间受限场合。
  • 双向结构可在无需区分极性的情况下保护双向/差分信号及电源线。
  • 80 W(8/20 μs)脉冲抑制能力可有效吸收短时高能量浪涌,提升系统抗干扰能力。
  • 20 pF 的结电容在多数控制与信号接口上影响较小,兼顾保护性能与信号完整性。
  • 低漏电(≈1 μA)适用于对静态功耗敏感的 3.3 V 系统。

四、典型应用场景

  • 智能终端、IoT 设备的外设接口(按键、GPIO、UART、I2C 等);
  • 手机、平板、耳机等便携设备的外部连接器防护;
  • 工业控制与仪表中对抗ESD和短时浪涌的保护节点;
  • 各类通信接口的线路保护(在确认电容允许范围内)。

五、布局与使用建议

  • 尽量将 JEB03D5 放置于需保护的器件或连接器附近,缩短连接线以降低感抗与延迟。
  • 对于接地型布局,应保证附近有良好的地回路,必要时在保护器与地之间提供低阻抗回流路径。
  • 在对高速差分信号(如 USB/高速串行)进行保护时,请先评估 20 pF 容量对信号眼图和带宽的影响;若受限,可考虑低电容 TVS 或使用外加串阻/共模滤波器配合。
  • 虽然本器件能承受 8/20 μs 的单次脉冲,若系统需频繁承受大幅度冲击,应选用更高功率或并联分流策略,并注意热耗散设计。

六、选型及注意事项

  • 若系统工作电压为 3.3 V,JEB03D5 的 Vrwm=3.3 V 与钳位 12 V 对多数突发事件有良好匹配;但请结合最大允许钳位电压判断后端器件能否承受瞬态剩余电压。
  • 双向器件在直流电源线上会形成双极保护,若用于单向电源(正向固定),可考虑单向 TVS 以降低钳位或漏电等影响。
  • SOD-523 为超小封装,焊接与维修时注意静电与热管理,遵循厂家的回流焊工艺建议。

七、可靠性与合规

JEB03D5 满足常见的 EMC/ESD 规范(IEC 61000-4-2/-4-4/-4-5),适用于需要通过这些测试的消费与工业产品。其 80 W(8/20 μs)峰值能力在典型的连接器瞬态试验中表现可靠,但最终系统认证仍需在整机层面进行验证。

八、小结

JEB03D5(JJW,SOD-523)是一款针对 3.3V 设计的小型双向 TVS,具备良好的瞬态能量吸收能力、低漏电和适中的结电容,适合在空间受限、需基本 ESD/浪涌防护的场合使用。选用时应兼顾被保护端器件的最大耐受钳位值及对信号完整性的影响,并在 PCB 布局与热/地回路设计上加以优化,以获得最佳保护效果。若需更详细的电气特性曲线、封装图或回流工艺参数,建议索取器件数据手册或联系供应商技术支持。

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