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BORN BSD3A031V
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BORN BSD3A031V
- Type
- BORN
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BORN
- Electronic Component
- BSD3A031V
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.028g
- Electronic Component
- 1
- Cj- Capacitor
- 100pF
- Electronic Component
- BM0258885491
- Voltage
- 15V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-5；IEC 61000-4-2
- Current(Ir)
- 1uA
- Voltage(VBR)
- 4V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BSD3A031V 产品概述
一、产品简介
BSD3A031V 是 BORN（伯恩半导体）推出的一款单向瞬态抑制二极管（TVS），用于对 3.3V 工作电源或 I/O 接口提供浪涌、静电放电（ESD）和电快速瞬变（EFT）保护。器件采用 SOD-323 小体积封装，适合空间受限的表贴设计。
二、主要电气参数
- 极性：单向（单向钳位正向瞬态到地）
- 额定反向工作电压 Vrwm：3.3V
- 击穿电压 Vbr：约 4V
- 钳位电压 Vc（峰值脉冲时）：15V（产品典型钳位能力）
- 峰值脉冲电流 Ipp：16A（8/20µs 波形）
- 峰值脉冲功率 Ppp：240W（8/20µs 波形）
- 反向静态电流 Ir：1µA（在 Vrwm 条件下）
- 结电容 Cj：100pF（对高速信号有一定影响）
- 防护等级/标准：符合 IEC 61000-4-2（ESD）、IEC 61000-4-4（EFT）、IEC 61000-4-5（浪涌）
以上参数表明该器件在规定脉冲波形下能提供可靠的能量吸收与钳位能力，但不适合作为连续电源元件使用。
三、典型应用场景
- 3.3V 电源线路保护（板对地瞬态抑制）
- MCU、PHY、传感器等接口保护（在允许的电容范围内）
- 通信接口及外部连接器保护（USB 2.0 较低速信号除外需评估电容影响）
- 工业控制、消费类电子、物联网终端的浪涌与静电防护
四、封装与布局建议
SOD-323 小型封装利于节省 PCB 面积。为保证最佳保护效果，器件应尽量靠近被保护端口或连接器布局，钳位路径短而粗。单向 TVS 的阴极接被保护线，阳极接地（或系统公共地）。对高速信号使用前应评估 100pF 结电容对信号完整性的影响，必要时选择低电容替代品或采取隔离措施。
五、使用与可靠性要点
- 峰值 Ipp 与 Ppp 基于 8/20µs 波形，表示瞬态能量吸收能力，非连续功率规格。
- 反向静态电流较小（1µA），适合低功耗系统，但在高温或长时间偏置下应校验热耗散。
- 满足 IEC 61000 系列抗扰度可用于多数工业与消费场景的瞬态防护要求。
- 推荐在 PCB 设计中配合适当的过流保护（熔断、限流器）及滤波元件以提升整体稳健性。
六、选型与采购建议
在确定 BSD3A031V 是否适合系统时，请根据被保护节点的最大允许钳位电压、信号速率对应的容性负载容忍度以及预期脉冲能量进行验证。SOD-323 的可焊接性与回流工艺兼容性良好，适合量产表贴工艺。购买时可参照 BORN（伯恩半导体）官方型号与封装标识，确保器件真伪与批次一致性。
如需针对具体应用做更详细的仿真或等效测试建议，可提供系统拓扑与典型干扰波形以便进一步分析。
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