WMSIC Electronic Components

TECH PUBLIC ESD9B5V

ModelESD9B5V
PackageSOD-923
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 ESD9B5V
Type
TECH PUBLIC
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
ESD9B5V
Electronic Component
1
Package
SOD-923
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.026g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
15pF
Electronic Component
BM0226539058
Operating Temperature
55℃~+125℃
Voltage
10V
Electronic Component
IEC 61000-4-2;IEC 61000-4-5

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

ESD9B5V(TECH PUBLIC / 台舟电子)产品概述

一 基本特性

ESD9B5V 是一款针对 5V 信号线的单路双向瞬态电压抑制器(TVS/ESD),采用 SOD-923 小体积封装。器件专为静电放电(ESD)和浪涌(Surge)保护设计,能在突发过电压瞬变时迅速钳位,保护下游敏感电路。工作温度范围宽(-55℃ 至 +125℃),适合工业级和民用消费类应用。

二 主要电气参数

  • 钳位电压(VCL):10 V(典型/最大钳位值,取决于脉冲条件)
  • 反向工作电压(Vrwm):5 V
  • 击穿电压(Vbr):8.4 V
  • 峰值脉冲功率(Ppp):80 W @ 8/20 μs
  • 峰值脉冲电流(Ipp):8 A @ 8/20 μs
  • 结电容(Cj):15 pF(典型)——对高速信号影响小
  • 反向漏电流(Ir):80 nA(在 Vrwm 条件下)
  • 极性:双向(bidirectional)
  • 通道数:单路
  • 封装:SOD-923
  • 工作温度:-55℃ ~ +125℃
  • 防护等级/兼容标准:符合 IEC 61000-4-2 / IEC 61000-4-5 要求(静电与浪涌防护)

三 典型应用场景

  • USB、UART、SPI、I2C 等 5V 或标称接近 5V 的信号线保护
  • 接口/外部连接器(如板对板、线缆接口)附近的输入保护
  • 工业控制器、消费电子、便携设备中对静电敏感的数字/模拟输入端口
  • PCB 上单点需要双向过压保护的低电压信号节点

四 推荐电路与 PCB 布局建议

  • 典型连接:将 ESD9B5V 直接并联于受保护信号线与地(或差分对两端),对于双向器件可直接跨信号与地放置。
  • 放置位置:尽量靠近外部连接器或易受静电冲击的输入端,优先置于信号进入 PCB 的第一位置。
  • 布线要求:从受保护节点到 TVS 器件的连线长度越短越好,减小串联电感与回路面积;避免在保护器件与地之间穿插长回流路径。
  • 接地处理:TVS 的地端应短而粗地接入 PCB 地平面,如条件允许在器件附近增加过孔(via)直接连入内部或底层地平面,确保低阻、低电感回路。
  • 对高速信号影响:结电容 ~15 pF,适用于多数低速及中速数字接口;对极高速差分信号(如 USB3.x、高速差分链路)需评估插入容性是否满足信号完整性要求,必要时配合串联阻抗或选择更低电容器件。

五 焊接与可靠性建议

  • 封装为 SOD-923,适合自动贴装与回流焊工艺。推荐遵循通用 SMT 回流温度曲线(参照 JEDEC/IPC 标准)进行焊接,避免超过器件最大容许焊接温度与时长。
  • 储存与回流过程避免潮湿引起的焊接缺陷,必要时按 IPC/JEDEC 曝气及烘烤要求处理。
  • 长期工作在高温或高湿环境下,建议在系统设计中预留热量散发与密封防护措施,以维持长期可靠性。

六 包装与订购信息

  • 品牌:TECH PUBLIC(台舟电子)
  • 型号:ESD9B5V
  • 封装:SOD-923(表面贴装)
  • 常见供货形式:硕体装带卷(Tape & Reel),适用于高速贴片生产(具体包装规格与最小包装单位请向供应商确认)。

七 注意事项

  • 器件为单路双向设计,若用于差分对(双线)保护,应为每一导线配备独立 TVS 或按系统方案布局。
  • 在选型时请确认 Vrwm 与系统工作电压匹配(保护电压不能低于正常工作电压,以免触发误动作)。
  • 如果系统需通过严格的工业级浪涌测试,请在样机上进行完整的 EMC/ESD 测试验证(IEC 61000-4-2 / 4-5 等),并根据测试结果调整器件位置、接地与外部元件配合。

本产品适合寻求小体积、低电容且对 5V 信号具有高效瞬态抑制能力的场合。如需更详细的电气特性曲线、封装尺寸图或可靠性数据表,请告知,我可协助整理或对接 TECH PUBLIC 官方资料。

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