WMSIC Electronic Components

Brightking SDD32A05L01

ModelSDD32A05L01
PackageSOD-323
BrandBrightking
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
Brightking SDD32A05L01
Type
BRIGHTKING
Minimum package
3000

Technical parameters

Electronic Component
Brightking
Electronic Component
SDD32A05L01
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.013g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
350pF
Electronic Component
BM0209685466
Voltage
9.8V
Electronic Component
IEC 61000-4-2
Current(Ir)
10uA
Voltage(VBR)
6V

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

SDD32A05L01 产品概述

SDD32A05L01 是 Brightking(台湾君耀)推出的一款单路单向 ESD 二极管,采用 SOD-323 小封装设计,面向需要对接口与电源线进行静电放电保护(ESD)的消费电子与工业应用。该器件具有快速响应、较高峰值吸收能力和可回流贴片封装,适合在有限空间内对 5V 及以下工作电压系统实现有效的浪涌与静电防护。

一、主要参数一览

  • 类型:ESD(单路、单向)
  • 封装:SOD-323(表面贴装)
  • 钳位电压(VCL):9.8 V(在标准脉冲条件下测得)
  • 击穿电压(Vbr):6 V
  • 反向截止电压(Vrwm):5 V
  • 峰值脉冲功率(Ppp):320 W(8/20 μs 脉冲)
  • 峰值脉冲电流(Ipp):24 A(对应 8/20 μs 脉冲)
  • 反向电流(Ir):10 μA
  • 结电容(Cj):350 pF
  • 防护等级:符合 IEC 61000-4-2 标准
  • 品牌:Brightking(台湾君耀)
  • 型号:SDD32A05L01

二、器件特点与优势

  1. 小封装、高密度布局:SOD-323 封装面积小,便于在 PCB 较紧凑的设计中靠近受保护引脚放置,缩短寄生路径,提高防护效率。
  2. 良好的瞬态吸收能力:在标准 8/20 μs 脉冲测试条件下,器件可承受高达 320 W 的峰值脉冲功率,对单次大幅冲击有良好吸收能力。
  3. 低漏电与快速响应:反向电流仅 10 μA(典型),能在保持低静态损耗的同时对瞬态电压进行快速钳位。
  4. 单向结构适配 5V 系统:Vrwm=5V 与击穿电压 ~6V 的设计使其非常适合用于 5V 电源轨或 5V I/O 口的防护。
  5. 工业标准兼容:满足 IEC 61000-4-2 静电放电防护要求,可用于需要通过该规范测试的产品设计。

三、适用场景与限制须知

  • 适用场景:移动设备接口、充电口、GPIO/控制信号、5V 电源线旁路保护、家用电器与工业控制设备的输入端口等需要抗静电冲击的场合。
  • 结电容考虑:Cj=350 pF 属于中等偏高值,说明该器件在高频高速数据线(如 USB 2.0/3.0、HDMI、LVDS 等)上可能引入较明显的信号失真或带宽下降,不推荐用于对传输速率或信号完整性有严格要求的高速差分信号线路。对低速信号或电源线则较为合适。
  • 功率与寿命限制:Ppp、Ipp 等为脉冲能量指标,表明器件可承受规定波形和能量的瞬态,但不适合作为持续高功率浪涌的替代品。多次高能量冲击可能导致性能退化或失效,系统设计中应配合其他保护(如系列阻抗、保险丝、TVS阵列等)以提高可靠性。

四、布局与使用建议

  • 近端保护:将 SOD-323 器件尽量靠近受保护的连接器或外部引脚放置,缩短引线长度,降低寄生电感和电阻。
  • 地线处理:器件的参考地应与 PCB 主地相连,若可能使用足够面积的焊盘或地平面来散热与导流。
  • 串联阻抗:对于高速或对抗冲击需求更高的线路,可考虑在保护器件前端串联小阻值电阻或共模滤波器,以分担部分瞬态能量并改善信号完整性。
  • 回流与焊接:SOD-323 为常见回流兼容封装,应按照通用回流温度曲线进行工艺控制,防止过热导致封装损伤。

五、典型应用示例

  • 智能手机与外围模块的 5V 充电口防护
  • 机顶盒、路由器等消费电子的 I/O 接口静电防护
  • 工业控制设备的低速信号线与控制端口防护
  • 车载低压辅助电路(需要注意车用环境的温度和浪涌等级时需进一步验证)

六、选型与替代建议

选择 SDD32A05L01 时,请确认受保护信号对结电容敏感性与系统耐压需求。若要求更低的结电容以保障高速信号完整性,应选用专为高速接口设计的低电容 ESD 二极管(通常 Cj < 10–50 pF);若系统需要更高能量吸收或多次冲击能力,可考虑多级保护方案或功率更高的 TVS 器件。

总结:SDD32A05L01 提供了在小封装下对 5V 及以下系统快速、可靠的 ESD 防护,适合对体积与成本敏感但对高速信号要求不极端的应用场合。设计时应综合考虑结电容、布局和外部保护措施,确保整体抗电磁脉冲和静电放电性能满足产品可靠性要求。

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