WMSIC Electronic Components

ST ESDZV18-1BF4 ESD Diode ESDZV18

ModelESDZV18-1BF4
Package0201
BrandST
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ST(STMicroelectronics) ESDZV18-1BF4
Type
ST
Minimum package
15000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ST(STMicroelectronics)
Electronic Component
ESDZV18-1BF4
Electronic Component
1
Package
0201
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.14g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0258872963
Operating Temperature
55℃~+150℃
Voltage
21.5V
Electronic Component
IEC 61000-4-2
Voltage(VBR)
18V

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

ESDZV18-1BF4 产品概述

一、产品简介

ESDZV18-1BF4 是意法半导体(ST)提供的一款单路双向瞬态电压抑制器(TVS/ESD),用于对敏感电子接口进行静电和浪涌保护。器件封装为超小型 0201(0603 公制),适合高密度 PCB 布局与微型化终端产品。其工作温度范围为 -55℃ 到 +150℃,并满足 IEC 61000-4-2 静电放电防护要求,适用于移动设备、便携式设备、接口连接器及其它需要紧凑保护方案的场合。

二、主要规格亮点

  • 极性:双向,能够对正、负极性瞬变进行对称钳位,适合保护差分或单端信号线。
  • 钳位电压(典型):21.5 V(在指定脉冲条件下),有效限制过电压对后级电路的损害。
  • 峰值脉冲功率(Ppp):70 W(8/20 μs 波形),可承受工业常见的浪涌脉冲能量。
  • 击穿电压:18 V,定义了器件进入导通状态的起始电压。
  • 通道数:单路,便于针对单个信号通道进行保护设计。
  • 封装:0201(极小体积),适合空间受限或多路并行保护的场景。
  • 工作温度:-55℃ ~ +150℃,满足宽温应用要求。
  • 防护等级:符合 IEC 61000-4-2 标准,满足常见静电放电(ESD)防护规范。
  • 类型:ESD / TVS,用于瞬态过压抑制与快速放电吸收。

三、典型应用场景

  • 手机、平板、可穿戴设备等便携终端的外部接口(如 USB、耳机、按键接口等)。
  • 高密度 PCB 的信号保护:摄像头、显示接口、天线馈线前端(视具体信号电平与电容要求)。
  • 工业控制与仪表的接口保护,防止开关、连接器处的静电与浪涌进入敏感电路。
  • IoT 终端、无线模块接口与通信端口的防护元件。

四、设计与布局建议

  • 布局:将 ESDZV18-1BF4 尽量靠近受保护的输入/输出连接器或外部引脚放置,以缩短走线并降低感性耦合。
  • 接地:为获得最佳性能,确保器件的接地焊点与系统地之间有低阻抗连接,优先使用回流焊靠近地平面。
  • 差分线保护:双向特性允许对差分对或单端线路进行对称保护;若保护差分对,考虑在每条线上各使用单路器件或采用对称配置(视系统设计)。
  • 信号完整性:0201 封装体积小、引线感抗低,但在高速信号应用中仍需注意器件本身的寄生电容对带宽的影响(根据系统对带宽要求选择合适保护方案)。

五、封装与装配注意事项

  • 0201 为极小封装,推荐使用精密贴装和回流焊工艺,避免手工焊接导致的损伤。
  • 在回流曲线中,遵循制造商给出的最大焊接温度与时间限制以防止器件性能退化。
  • 生产测试与返修:尽量避免多次返修加热,因反复高温可能影响长期可靠性。

六、可靠性与环境适应

  • 宽温工作范围(-55℃ ~ +150℃)使其适应工业级、汽车附近电子设备及户外环境(需符合具体认证要求)。
  • 器件经过 IEC 61000-4-2 相关静电防护测试,能在常见静电事件中为系统提供有效保护,但实际防护能力还需结合 PCB 设计与接地策略共同评估。

七、选型与注意事项

  • 在选用前,请确认系统正常工作电压与器件的击穿/钳位电压匹配,避免在正常工作状态下器件频繁触发钳位。
  • 若被保护信号对带宽或电容敏感,请参考详细数据手册中的电容参数并进行信号完整性评估。
  • 单路保护适合一条信号线的防护需求;多路保护场景需并行多个器件或选择多通道方案。

ESDZV18-1BF4 以其超小封装、双向保护与良好的浪涌承受能力,为微型化终端与高密度电路板提供可靠的瞬态过压保护。欲获取更详细的电气参数、封装尺寸和焊接工艺规范,请参考 ST 官方数据手册与应用说明。

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