WMSIC Electronic Components

YANGJIE BAV99WT

ModelBAV99WT
PackageSOT-323(SC-70)
BrandYANGJIE
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 Date code within 2 years

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
YANGJIE BAV99WT
Type
SOT-323(SC-70)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
BAV99WT
Electronic Component
1
Package
SOT-323(SC-70)
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0230692654
Electronic Component
Electronic Component
Electronic Component
3000

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

BAV99WT 产品概述

一、产品简介

BAV99WT 是扬杰 (YANGJIE) 推出的一款低电容、高速开关二极管,采用 SOT-323 小型封装,内部为两只二极管串联(1 对串联式)。器件面向高速开关、开漏逻辑保护和高压整流等场合,在要求体积小、开关速度快且能承受中等反向电压的电路中表现良好。

二、主要电气参数

  • 正向压降 (Vf):1.25 V @ IF = 150 mA(两只串联时测得值)
  • 直流反向耐压 (Vr):100 V
  • 连续整流电流:150 mA
  • 反向漏电流 (Ir):2.5 μA @ VR = 75 V
  • 反向恢复时间 (Trr):4 ns(典型值,适用于高速开关)
  • 工作结温范围:-55 ℃ ~ +150 ℃(Tj)

以上参数由典型测试条件给出,实际使用时建议参考具体应用的温度、频率与浪涌条件进行设计裕量。

三、关键特性与优势

  • 小型封装:SOT-323 管脚间距小,占板面积低,利于高密度集成。
  • 高反向耐压:100 V 的耐压能力适配许多中压应用。
  • 低漏电流:在 75 V 条件下 2.5 μA 的漏电表现,有利于保持高阻态准确性。
  • 快速恢复:4 ns 的反向恢复时间适合高速脉冲、开关和逻辑保护应用。
  • 串联结构:1 对串联式结构便于在需要额外反向耐压或增大正向压降的电路中直接使用。

四、典型应用场景

  • 高速开关与脉冲整形电路(开关频率高、要求低反向恢复时)
  • 输入过压/反接保护、电平钳位与浪涌钳位
  • 高频整流与检测电路,例如差分信号整流和小电流检测
  • 移动设备、通信模块、传感器前端的保护与信号处理
  • 任何要求小体积、高耐压及快速恢复的通用电子设计

五、使用建议与设计注意事项

  • 正向电流与散热:标称整流电流 150 mA,长期工作时请评估封装热阻与 PCB 散热路径,必要时限制平均电流或加入热扩散区。
  • 反向电压裕量:建议在 100 V 额定值基础上保留安全裕度以应对浪涌和尖峰电压。
  • 开关速度优化:为利用 4 ns 的快速恢复特性,应在 PCB 布局中尽量缩短高频回路的回流路径并减小寄生电感、电容。
  • ESD 与浪涌防护:虽然漏电流较低,但应结合系统级保护(抑制器、电阻限流)防止瞬态过压。
  • 波峰焊/回流焊工艺:遵循元器件热极限,避免超出封装允许的焊接温度和时间;焊接后建议进行清洗以去除助焊剂残留。

六、封装与可靠性信息

BAV99WT 采用 SOT-323 表面贴装封装,适合自动化贴装与回流焊工艺。工作结温覆盖 -55 ℃ 到 +150 ℃,可在宽温度范围内稳定工作。建议在存储和贴装过程中遵循常规静电防护与干燥保存原则以保证可靠性。

七、选型与替代建议

当系统对更高电流或更低正向压降有要求时,可考虑同类双二极管但更大封装或更低 Vf 的型号;若需更高耐压或更低反向恢复时间,也可在器件族中选择相应规格。采购时请以完整型号、批次和封装信息为准,向供应商索取详细数据手册以获得完整的典型曲线与可靠性数据。

总结:BAV99WT 以其小尺寸、100 V 耐压、低漏电和快速恢复特性,适合用于多种高速开关、保护和检测场合。合理考虑热管理与电压裕度,可在紧凑型电路设计中发挥稳定效能。

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