WMSIC Electronic Components

ElecSuper ESD321DPYR(ES) ESD321DPYR

ModelESD321DPYR(ES)
PackageDFN1006-2L
BrandElec Super
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
Elec Super ESD321DPYR(ES)
Type
ELECSUPER
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
ESD321DPYR(ES)
Electronic Component
1
Package
DFN1006-2L
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.01g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.5pF
Electronic Component
BM0265151897
Operating Temperature
40℃~+125℃
Voltage
9.5V
Electronic Component
IEC 61000-4-2

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

ESD321DPYR(ES) 产品概述

ESD321DPYR(ES) 是 ElecSuper(静芯微)推出的一款超低电容、单路单向ESD静电防护二极管,专为 HDMI/USB/NFC/RF 等高频率、高速信号接口的静电防护而设计。器件采用微型 DFN1006-2L 封装,具有优异的钳位性能和低结电容,能够在不影响信号完整性的前提下提供 IEC 61000-4-2 20kV 等级的静电防护。

一、主要规格与性能亮点

  • 极性:单向(单路)
  • 反向工作电压 Vrwm:5 V
  • 击穿电压 VBR:6 V(IBR 测试条件)
  • 钳位电压(典型):9.5 V(Ipp 测试条件 4 A @ 8/20 μs)
  • 峰值脉冲电流 Ipp:4 A @ 8/20 μs
  • 峰值脉冲功率 Ppp:60 W @ 8/20 μs
  • 反向泄漏电流 Ir:≤ 1 μA
  • 结电容 Cj:≈ 0.5 pF(典型)
  • 通道数:单路
  • 工作温度范围:-40 ℃ ~ +125 ℃
  • 防护等级:符合 IEC 61000-4-2(可达 20 kV)
  • 类型:ESD 保护器件
  • 封装:DFN1006-2L(超小型表面贴装)

二、产品功能与优势

  • 低电容设计:典型 Cj 仅 0.5 pF,最大限度减少对高速差分信号的负载与失真,适用于多Gbps 级别的高速接口。
  • 高效钳位性能:在 4 A 的 8/20 μs 冲击下,钳位电压约 9.5 V,能在瞬态期间快速限制电压尖峰,保护后端敏感芯片。
  • 低漏电:反向漏电 ≤ 1 μA,适合低功耗系统,不影响休眠或待机电流预算。
  • 小型封装:DFN1006-2L 占板面积极小,便于密集布局与空间受限的移动设备或可穿戴设备设计。
  • 工艺兼容:适合常见的 SMT 回流焊工艺,便于批量生产组装。

三、典型应用场景

  • HDMI、USB(包括 USB 3.x / Type-C)高速差分信号保护
  • NFC / RF 天线接口瞬态与静电放电抑制
  • 手机、平板、笔记本等消费电子外部 I/O 接口保护
  • 工业通信接口及传感器线缆入口的局部防护
  • 需要兼顾信号完整性和静电安全的高速数据链路

四、设计与布局建议

  • 近端放置:将器件放置在连接器与受保护芯片之间,尽量靠近连接器端口,以缩短未保护段的走线。
  • 最短走线:从受保护信号线到 ESD 二极管的焊盘引线越短越好,减少串联感抗和寄生电阻,提高放电效果。
  • 单点接地:建议旁边布置低阻抗接地平面或一颗接地回流焊盘,尽量减少环路面积;对高频接口使用单颗接地 VIA 直连底层接地。
  • 差分线匹配:由于器件电容极低(0.5 pF),通常对差分阻抗影响小,但仍需在 PCB 布线中保持差分线间距与长度匹配,避免额外反射。
  • 热管理:虽然典型工作为瞬态冲击保护,若需承受频繁大能量脉冲,需评估整体热耗散与器件热应力;常规应用下无须额外散热措施。

五、可靠性与使用注意

  • 非稳态保护:ESD321DPYR(ES) 适用于瞬态静电和脉冲保护,不应用于长期连续过压(例如持续浪涌)环境;对持续过压应采取二级保护策略(限流或熔断器)。
  • 重复冲击能力:多次强冲击后器件可靠性需通过系统级测试验证;关键产品建议进行实际环境的 ESD 循环测试与系统认证。
  • 焊接与回流:兼容主流 SMT 回流温度曲线;建议遵循器件制造商提供的回流焊曲线与存储、贴装规范以保证可靠性。

六、典型参数解析(参考值)

  • 钳位电压(Ipp=4 A, 8/20 μs):≈ 9.5 V
  • 击穿电压 VBR(测试电流条件下):6 V
  • 动态阻抗估算(在 Ipp 条件下):(Vcl - VBR) / Ipp ≈ (9.5 - 6) / 4 ≈ 0.875 Ω(估算值,实际受测试条件影响)
  • 结电容:0.5 pF(对 GHz 级别信号干扰极小)

七、订购信息与品牌

  • 产品型号:ESD321DPYR(ES)
  • 品牌:ElecSuper(静芯微)
  • 封装:DFN1006-2L
  • 建议在样片验证时同时做信号完整性与 ESD 测试,以确认在目标系统中的表现。

如需器件数据手册的具体电压/电流测试曲线、封装尺寸图或推荐 PCB 焊盘布局,请提供您的邮箱或具体需求,我可以为您整理并提供更详细的工程资料与布局示意建议。

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