WMSIC Electronic Components

Brightking SJD12A26L01

ModelSJD12A26L01
PackageSOD-123S
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SJD12A26L01
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SJD12A26L01
Electronic Component
1
Package
SOD-123S
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.037g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0229467982
Operating Temperature
55℃~+150℃
Voltage
42.1V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
28.9V

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

SJD12A26L01 产品概述

一、产品简介

SJD12A26L01 是 Brightking(台湾君耀)推出的一款单路表面贴装型 ESD 抑制二极管,封装为 SOD-123S。它为敏感器件与接口提供瞬态电压抑制,能有效吸收静电放电和脉冲干扰,保护下游电路免受损坏。器件设计适用于工规与消费类电子的接口保护需求,在宽工作温度范围内表现稳定,便于在多种环境下使用。

二、主要性能指标

  • 反向截止电压(Vrwm):26 V(工作反向电压)
  • 击穿电压(Vbr):28.9 V
  • 钳位电压(Vcl):42.1 V(对应 8/20 μs 峰值脉冲)
  • 峰值脉冲电流(Ipp):4.8 A @ 8/20 μs
  • 峰值脉冲功率(Ppp):1 kW @ 8/20 μs
  • 反向电流(Ir):1 μA(常温条件)
  • 通道数:单路(单向 ESD 保护)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 防护等级:符合 IEC 61000-4-2(ESD 抗扰规范)
  • 封装:SOD-123S(表面贴装)

三、典型特性与保护能力

SJD12A26L01 在遭受静电放电或雷击脉冲时,会以低阻态把瞬时高能量导入地线或系统参考端,从而限制被保护节点上的电压不要超过器件的钳位电压。器件在 8/20 μs 波形测试条件下能承受 4.8 A 的脉冲电流,钳位电压约为 42.1 V,能够在短时高能冲击下提供可靠保护。其低反向电流(1 μA)和较高的反向截止电压(26 V)使其适合用于需要较高工作电压余量的接口线路。

四、封装与可靠性

SOD-123S 封装体积小、引脚间距短,适合自动化贴装与回流焊工艺,利于大批量生产。器件额定的高温工作上限(150 ℃)和宽温度范围(-55 ℃ 至 150 ℃)使其在工业级与恶劣环境下具有较好的稳定性与可靠性。符合 IEC 61000-4-2 的防护能力表明其能满足常见 ESD 规范下的抗扰性能要求,适用于需要抗静电保护的电子产品。

五、典型应用场景

  • 各类接口保护:USB、串口、RS-485、以太网 PHY 输入(需注意线电压适配)
  • 消费类与工业类外设接口:显示器、键盘、触摸屏与传感器连线保护
  • 电源与通信线的瞬态抑制:对 26 V 以下工作电压的电源或信号线提供保护
  • 电子模块前端保护:防止插拔、接触放电等导致的损伤
    注:在高带宽或对电容敏感的线路(如高速差分信号)使用前应评估器件电容对信号的影响。

六、设计与布局建议

  • 器件靠近受保护端口或连接器放置,以缩短 PCB 上的寄生引线长度,提高抑制效率。
  • 使用单点接地或短路径接地技术,确保脉冲能量能够快速、安全回流到系统地。
  • 对于多通道或高能脉冲场景,可并联或选用更高能量等级的 TVS 器件;并联时需注意电流分配与热管理。
  • 在高频或高速数据线应用中,评估并尽量减小 TVS 的并联电容,以免影响信号完整性。
  • 遵循厂家推荐的回流焊温度曲线与 PCB 焊盘布局,保证焊接质量与热可靠性。

七、选型注意事项与订购信息

  • 确认目标线路的最大工作电压与瞬态抑制要求:SJD12A26L01 的 Vrwm 为 26 V,适合 26 V 以下或接近该范围的应用。
  • 比较钳位电压与被保护器件的耐压,确保在脉冲发生时下游器件不会被击穿。
  • 若需双向保护或更低钳位电压、或更高能量承受能力,应考虑相应型号或多路方案。
  • 品牌与封装:Brightking(台湾君耀),SOD-123S;订购时请确认完整型号 SJD12A26L01 与包装形式。
  • 在下单前可向供应商获取完整数据手册(包含典型波形、热阻、封装尺寸与回流谱),以便在设计与可靠性验证阶段充分评估。

总结:SJD12A26L01 以其较高的脉冲承受能力、较低的漏电与宽温度范围,适用于多种需要单路 ESD 抑制的接口保护场景。合理的 PCB 布局与热管理将显著提升其保护效果与长期可靠性。

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