WMSIC Electronic Components

UMW PESD12VL1BA

ModelPESD12VL1BA
PackageSOD-323
BrandUMW
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
UMW PESD12VL1BA
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
PESD12VL1BA
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.033g
Electronic Component
1
Cj- Capacitor
30pF
Electronic Component
BM0225985312
Voltage
26V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
13.3V

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

PESD12VL1BA 产品概述

PESD12VL1BA 是 UMW(友台半导体)推出的一款表面贴装双向 TVS 二极管,专为数据线和信号线的浪涌与静电放电保护设计。器件在 8/20µs 波形下可承受高达 260W 的峰值脉冲功率,具备低漏电、较小结电容与符合多项工业级抗干扰标准的可靠性能,适合消费电子、通信设备与工业控制等场景的瞬态过电压防护。

一、主要电气参数

  • 钳位电压 (Clamping Voltage):26V
  • 击穿电压 (Breakdown Voltage):13.3V
  • 反向截止电压 Vrwm:12V
  • 峰值脉冲功率 Ppp:260W @ 8/20µs
  • 峰值脉冲电流 Ipp:10A @ 8/20µs
  • 反向电流 Ir:1µA(静态小泄漏)
  • 结电容 Cj:30pF(典型)
  • 极性:双向(Bidirectional)
  • 类型:ESD/浪涌保护二极管(TVS)
  • 封装:SOD-323(表贴)

二、关键功能与优势

  • 强抗浪涌能力:8/20µs 波形下 260W 峰值功率与 10A 峰值脉冲电流,能有效吸收短时高能冲击,保护下游电路。
  • 双向夹位:对正负极性瞬态均能对称限制,适合无固定偏置的信号线或差分对保护。
  • 低漏电与小结电容:Ir≈1µA 与 Cj≈30pF,适配高速信号线,减小对信号完整性的影响。
  • 符合抗干扰标准:满足 IEC 61000-4-2(静电放电)、IEC 61000-4-4(电快速瞬变)与 IEC 61000-4-5(浪涌)测试要求,可靠性高。
  • 体积小、易于自动贴装:SOD-323 封装利于高密度 PCB 设计与 SMT 流程。

三、典型应用场景

  • USB/串口/串行差分传输口的输入保护
  • 手机、平板与便携式设备的数据接口防护
  • 工业控制设备的传感器信号线与通信接口
  • 网络设备、机顶盒与消费电子中对电磁兼容(EMC)及 ESD 防护的局部保护

四、使用建议与 PCB 布局要点

  • 贴装位置:将 TVS 器件尽量靠近受保护的连接器或进线端,缩短未保护段的线长以降低阻抗和感抗。
  • 布线要求:保护器两端与被保护线之间走线应最短且粗,以提高吸收效率;若接地端存在,建议采用低阻抗地平面和多孔过孔回流。
  • 对高速信号:由于结电容约 30pF,应用在高速差分对时需评估对眼图与串扰的影响,必要时选用更低容抗的器件或在协议允许下做串联阻抗匹配。
  • 焊接与可靠性:遵循 SMD 回流焊工艺,注意抗潮湿等级与贴装后湿热试验需求,长期工作环境下应考虑器件的热耗散与散热路径。

五、选型与采购提示

  • 型号:PESD12VL1BA;品牌:UMW(友台半导体);封装:SOD-323。
  • 在选型时确认保护对象的最大允许电压与工作电压(Vrwm=12V),并确保钳位电压 26V 能满足被保护器件的耐压要求。
  • 对批量采购、可靠性验证或封装资料(尺寸图、回流曲线)需求,请联系供应商或参考完整数据手册以获取详细规格与应用电路。

PESD12VL1BA 以其高功率吸收能力、双向保护与小型化封装,为对抗 ESD、浪涌与瞬态脉冲提供了一种经济且可靠的解决方案。对于需要在有限 PCB 空间内实现有效瞬态防护的设计,该器件是较为合适的选择。

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