WMSIC Electronic Components

Leiditech BV12C

ModelBV12C
PackageSOD-323
BrandLeiditech
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
Leiditech BV12C
Type
LEIDITECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
BV12C
Electronic Component
1
Package
SOD-323
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.025g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
1pF
Electronic Component
BM0264463873
Voltage
29V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
200nA
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.

BV12C(Leiditech 雷卯电子)产品概述

BV12C 是一款为单路电源/数据信号线提供高效静电与脉冲浪涌保护的表面贴装 TVS(瞬态电压抑制器)器件。产品采用 SOD‑323 小封装,具有超低结电容、纳安级泄漏电流与高脉冲功率吸收能力,专为对信号完整性和抗电磁干扰有较高要求的移动设备、通信接口与外围端口设计。

一、主要规格与性能亮点

  • 反向截止电压 Vrwm:12 V(适合 12 V 及以下电源/信号线防护)
  • 击穿电压 VBR:13.3 V(典型)
  • 钳位电压(Vc,峰值):29 V(8/20 μs 峰值脉冲条件下)
  • 峰值脉冲功率 Ppp:350 W(8/20 μs 波形)
  • 反向泄漏电流 Ir:典型 200 nA(低泄漏,适合待机/低功耗应用)
  • 结电容 Cj:典型 1 pF(极低电容,保证高速信号完整性)
  • 通道数:单路(单通道保护)
  • 防护等级:满足 IEC 61000‑4‑2(ESD)与 IEC 61000‑4‑4(EFT)抗扰度要求
    • ESD 抗扰度:空气放电 ±30 kV,接触放电 ±30 kV
  • 封装:SOD‑323(超小型、适合自动贴片生产)
  • 类型:单向 ESD/浪涌保护二极管

二、产品特征与优势

  • 高能脉冲吸收:350 W(8/20 μs)峰值功率,能够有效吸收瞬态大能量冲击,保护下游芯片不被破坏。
  • 低钳位电压:在大能量冲击下仍能将电压钳位在较低水平(典型 29 V),减小被保护器件的应力。
  • 超低结电容(1 pF):对 USB、SIM、串行高速数据等敏感信号线影响极小,保持信号传输质量。
  • 极低泄漏电流(纳安级):用于电池供电和低功耗系统时,不会明显增加静态功耗。
  • 小体积封装(SOD‑323):节省 PCB 空间,适用于空间受限的移动设备或模块化设计。
  • 满足工业级抗扰度标准:通过 IEC 61000‑4‑2/4‑4 测试,提升产品的现场可靠性与电磁兼容性(EMC)表现。

三、典型应用场景

  • 手机、平板、便携终端的 USB 接口与数据线保护
  • SIM 卡接口、智能卡读写器等小信号端口的 ESD 防护
  • 工业与消费类设备中单路 12 V 及以下供电线或敏感信号线的瞬态保护
  • 外围接口(OTG、串口、GPIO)及天线下端前端保护

四、典型电路接法与 PCB 布局建议

  • 接法:BV12C 作为单向 TVS 时,阴极(或标记端)通常接被保护线路,阳极接地(GND),用于把瞬态能量迅速导向地线。
  • 放置位置:器件应尽量靠近输入/连接器端放置,且到保护点(连接器)的走线长度尽量短,减少环路面积与寄生电感。
  • 地线处理:为保证泄放路径低阻抗,器件地端应直接回到系统参考地(接地平面),避免通过长走线或过孔回流。
  • 与串联元件配合:在高速或极端瞬态场景下,可与小阻值串联电阻或差分共模滤波器配合,进一步限制传导峰值。
  • 对于高速差分信号(如 USB),低结电容特性可最大程度降低对信号的影响,但仍需注意匹配与阻抗连续性。

五、可靠性与生产适配性

  • SOD‑323 小封装适合现行的贴片工艺(SMT),便于流水线贴装与回流焊接。
  • 低泄漏与稳定的钳位特性,有利于长期运行中的可靠防护表现。
  • 推荐在产品开发中进行实际 ESD 与雷击脉冲验证,以确认在具体系统拓扑下的保护效果。

六、选型提示

  • 若被保护线为双向信号(可能双向电压摆幅),请确认是否需要双向 TVS;BV12C 为单向类型,适用于单向(参考地)保护场景。
  • 对于工作电压显著低于 12 V 的场景,可继续参考器件的 Vrwm 与 VBR 确保在正常工作下不触发泄放。
  • 对高速接口(如 USB)尤为关注结电容,BV12C 的 1 pF 典型值使其成为高频数据线的理想选择。

BV12C(Leiditech 雷卯电子)以其高抗冲击能力、低钳位电压、极低结电容与小型封装,为各种需要兼顾信号完整性与强抗扰度的端口保护提供了经济且可靠的解决方案。对于具体布线、热管理或系统级 EMC 设计,建议结合实际电路做样机验证与参数确认。

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