WMSIC Electronic Components

Littelfuse SP3522-01ETG SP3522

ModelSP3522-01ETG
PackageSOD-882
BrandLittelfuse
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Littelfuse SP3522-01ETG
Type
LITTELFUSE
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LITTELFUSE
Electronic Component
SP3522-01ETG
Electronic Component
1
Package
SOD-882
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.012g
Electronic Component
1
Cj- Capacitor
0.15pF
Electronic Component
BM0226986560
Voltage
14.5V
Electronic Component
IEC 61000-4-2;IEC 61000-4-4;IEC 61000-4-5
Current(Ir)
1uA
Voltage(VBR)
9.2V
Electronic Component
Electronic Component

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

SP3522-01ETG 产品概述

一、主要规格

SP3522-01ETG 是 Littelfuse(美国力特)推出的一款双向 TVS 二极管,面向对静电和脉冲浪涌保护有严格要求的高速信号线及接口保护场景。主要电气参数如下:

  • 钳位电压(VCL,典型):14.5 V
  • 击穿电压(Vbr):9.2 V
  • 反向截止电压(Vrwm):7 V
  • 峰值脉冲电流(Ipp):2.5 A @ 8/20 μs
  • 结电容(Cj):0.15 pF(极低电容,适合高速数据线)
  • 反向电流(Ir):1 μA(通常在 Vrwm 下测得)
  • 类型:双向 ESD/浪涌保护 TVS 二极管
  • 通过防护等级:符合 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(浪涌)
  • 封装:SOD-882(表面贴装),供应形式:卷带(reel, tape)

二、产品特性与优势

  • 低结电容(0.15 pF):对高速差分信号(如 USB、LVDS、HDMI、Ethernet PHY 或其他高带宽接口)干扰极小,能在保持信号完整性的同时提供有效保护。
  • 双向保护:对双极性瞬态事件(正向/反向)均能吸收能量,无须区分极性,适合差分对或双向数据线。
  • 合理钳位电压:14.5 V 的钳位能力在 Ipp=2.5 A 情况下能有效限制瞬态电压,保护后端器件不受过压损伤。
  • 符合 IEC 等级:通过 IEC 61000-4-2/4/4-5 等规范测试,适合工业和消费类产品的电磁兼容(EMC)防护设计。
  • 小尺寸封装(SOD-882):占板面积小,适合空间受限的移动设备、通信模块和接口板卡。

三、典型应用场景

  • USB、HDMI、DisplayPort、Ethernet PHY 等高速数据接口的输入/输出端口防护
  • 手机、平板、便携设备和消费电子的外部接口(如充电端口、耳机插孔)
  • 工业控制通信端口、传感器接口及车载信息娱乐系统(非高压电源侧)
  • PCB 边缘连接器、外部天线或调试接口的静电与浪涌保护

四、封装与采购信息

  • 封装类型:SOD-882(表面贴装)
  • 供应方式:卷带(reel, tape),便于自动化贴片与回流焊工艺。
  • 品牌:Littelfuse(美国力特)
  • 类型型号:SP3522-01ETG(双向 TVS 二极管)

五、使用建议与注意事项

  • 布局:将 TVS 尽可能靠近需要保护的连接器或线缆入口处放置,走线最短、接地回路尽量短且粗,减小共有阻抗。
  • 接地:为保证泄放路径,建议将器件的接地焊盘直接与系统地平面连接,避免长细地线。
  • 双向器件:无极性要求,但在差分对中通常每条线各放一个或采用一对差分专用方案,根据 PCB 空间和信号完整性权衡。
  • 温度与焊接:按封装厂家的回流焊温度曲线进行焊接,避免超温或过长保温时间(具体回流规范请参考 Littelfuse 数据手册)。
  • 选型注意:若系统可能遭受高于 2.5 A(8/20 μs)的脉冲能量或需要更低钳位电压,应选用更高 Ipp 或更低钳位的 TVS 方案。

六、结论

SP3522-01ETG 以其极低的结电容、双向保护能力及符合 IEC 标准的抗扰性能,适合在高速信号线与敏感接口处作为首选的静电与浪涌保护器件。其小型 SOD-882 封装和卷带供货方式方便自动化生产,适用于消费电子、通信与部分工业应用。欲获得完整典型参数曲线、热特性和回流焊工艺要求,请参阅 Littelfuse 官方数据手册或联系供应商获取样片与应用资料。

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