WMSIC Electronic Components

Brightking SJD12C70L01

ModelSJD12C70L01
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SJD12C70L01
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SJD12C70L01
Electronic Component
1
Package
SOD-123S
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.038g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0257359307
Operating Temperature
55℃~+150℃
Voltage
113V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA

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

SJD12C70L01 产品概述

SJD12C70L01 是 Brightking(台湾君耀)出品的一款单路双向静电放电(ESD)保护器件,采用 SOD-123S 封装,专为对抗工业与消费电子环境中的瞬态过压与静电放电设计。器件在高阻抗工作条件下保持低漏电,并在短时大电流脉冲下提供稳健的钳位性能,适用于高压信号线、通讯线与电源旁路保护。

一 主要参数概览

  • 极性:双向(Bidirectional)
  • 工作反向截止电压 Vrwm:70 V
  • 击穿电压 Vbr:77.8 V
  • 钳位电压 Vcl(典型):113 V
  • 峰值脉冲电流 Ipp:1.8 A(8/20 μs 波形)
  • 峰值脉冲功率 Ppp:1 kW @ 8/20 μs
  • 反向漏电流 Ir:1 μA(在 Vrwm 条件下)
  • 通道数:单路
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 防护等级:符合 IEC 61000-4-2(ESD 抗扰度)
  • 封装:SOD-123S

二 关键特性说明

  • 双向结构:无极性限制,可直接用于交流或双向信号线上,方便布局和库存管理。
  • 低漏电流:在 70 V 工作电压下典型漏电小于 1 μA,适合对静态电流敏感的应用。
  • 高瞬态承受能力:1 kW(8/20 μs)能量吸收能力和 1.8 A 峰值脉冲电流,能可靠钳制常见静电与浪涌事件。
  • 稳定钳位:约 113 V 的钳位电压能有效限制过电压幅值,保护下游器件免受高压冲击。

三 应用场景

  • USB、HDMI、串口等高压信号接口的静电防护;
  • 工业控制与测量设备的外部接口保护;
  • 汽车电子外围低速信号线(在满足汽车规范的前提下);
  • 电源线或传感器线短时浪涌抑制。

四 封装与机械特性

SOD-123S 小型封装便于表面贴装(SMT)自动化生产,适合空间受限的终端设备。推荐在 PCB 上为器件预留足够焊盘面积并实施良好接地,以优化热量散逸和脉冲能量转移。

五 电路与布局建议

  • 将 SJD12C70L01 置于被保护器件与外部连接点之间,尽可能靠近插座或连接器布置;
  • 对于单端信号线,一端接保护器,另一端接系统地(或参考地);对于差分或双向线,可在两线上分别放置或采用共同地线设计;
  • 地线应短且宽,避免通过长回流路径传导高频脉冲以致感应干扰。必要时配合滤波电容和共模电感使用,形成多级保护。

六 环境与可靠性

工作温度 -55 ℃ ~ +150 ℃ 表明器件可在严苛工业环境中长期工作。符合 IEC 61000-4-2 意味着对静电放电具有有效的抗扰度等级,但在特殊高能环境(如直击雷)仍需结合其他防护措施。

七 选型要点与注意事项

  • 若系统工作电压或承受的脉冲能量高于本器件额定值,应选择更高 Vrwm 或更大 Ppp 的型号;
  • 双向器件在单向电源线应用时会有正向压降及漏电影响,必要时考虑单向 TVS;
  • 关注封装热阻与 PCB 散热,长时间频繁冲击可能影响寿命。制造与焊接环节遵循无铅回流工艺规范,避免过热损伤。

SJD12C70L01 以其高电压耐受、低漏电与小型封装特点,适合作为对高压或工业类信号线路的第一道或二道瞬态保护元件,在合理的电路与 PCB 布局下能够显著提升系统的抗静电与抗浪涌能力。

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