WMSIC Electronic Components

Jingdao Microelectronics SMBJ7.5CA

ModelSMBJ7.5CA
PackageSMB
BrandElectronic
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
Electronic SMBJ7.5CA
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SMBJ7.5CA
Electronic Component
1
Package
SMB
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.167g
Electronic Component
1
Cj- Capacitor
390pF
Electronic Component
BM0228061343
Operating Temperature
65℃~+150℃
Voltage
12V
Current(Ir)
100uA
Voltage(VBR)
9.21V

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

SMBJ7.5CA AP — TVS二极管产品概述

一、产品简介

SMBJ7.5CA AP 为晶导微电子推出的一款双向瞬态电压抑制(二极管)器件,采用SMB封装,专为保护低压直流和信号线免受瞬态过压(如雷击、浪涌、开关瞬变等)损害而设计。器件在10/1000µs浪涌测试条件下具有600W 的峰值脉冲功率承受能力,具有良好的稳态和瞬态保护性能。

二、主要参数

  • 类型:TVS(二极管),双向
  • 钳位电压(Vclamp):12V
  • 反向工作电压(Vrwm):7.5V
  • 击穿电压(Vbr):9.21V
  • 峰值脉冲功率(Ppp):600W @ 10/1000µs
  • 峰值脉冲电流(Ipp):46.6A
  • 反向电流(Ir):100µA(在额定Vrwm下)
  • 结电容(Cj):390pF
  • 工作温度:-65℃ ~ +150℃
  • 封装:SMB(表面贴装)
  • 品牌:晶导微电子

三、产品特性与优势

  • 双向结构:适用于交流或双向信号线路,无需额外反向并联器件。
  • 高浪涌吸收能力:600W@10/1000µs 能有效吸收工业、汽车或通讯系统中的脉冲能量。
  • 低钳位电压(12V):在浪涌发生时能将被保护电路的电压限制在较安全的水平,减少元件损坏风险。
  • 宽温度范围:支持-65℃至+150℃,适应恶劣环境和高温工作场合。
  • 适中结电容(390pF):在保护高速信号线路时需注意对信号完整性的影响,适合电源与某些信号保护应用。

四、典型应用场景

  • 5V/7.5V等级电源总线保护(例如某些工业控制、嵌入式系统)
  • 通讯接口与数据线防护(注意结电容对高频信号的影响)
  • 汽车电子低压回路瞬态保护(根据系统工作电压选择)
  • 工业设备、仪器仪表、安防设备等对浪涌有防护需求的场合

五、封装与安装注意

  • SMB表面贴装封装,便于波峰/回流焊工艺。
  • 建议器件尽量靠近被保护端口或连接器布局,减小寄生电感和回路面积以提高抑制效果。
  • 大电流浪涌时器件会产生热量,应确保周围有足够铜箔散热或考虑热限流设计。

六、选型与使用建议

  • 确认被保护电路的最大连续工作电压应低于Vrwm(7.5V),否则器件会持续导通并产生热损耗。
  • 对于12V车载总线或12V电源系统,应选择额定Vrwm ≥ 系统电压的型号;本型号更适合5V~7.5V等级。
  • 若用于高速信号线(如USB、差分高速接口),需评估390pF的结电容对信号带宽与眼图的影响,必要时采用低电容器件。
  • 浪涌能量由器件承受是有限的,设计中可配合限流电阻、熔断器或多级保护以分担能量并提升可靠性。

七、可靠性与测试

  • 器件通过10/1000µs浪涌测试,峰值功率600W,峰值电流46.6A;实际应用中应参考完整的浪涌能量曲线与重复脉冲能力。
  • 反向漏电流典型值为100µA,长期高温下应考虑漏电带来的功耗与热效应。
  • 推荐在产品开发阶段进行实际线路级的浪涌与ESD验证,确认保护效果与对系统性能的影响。

八、采购与资料

  • 型号:SMBJ7.5CA AP;品牌:晶导微电子;封装:SMB。
  • 建议在下单前获取并阅读厂家详细规格书(Datasheet),以确认完整的电气曲线、热特性、封装尺寸及可靠性试验资料。若用于关键或车规场景,请咨询厂商关于AEC-Q等级或额外认证信息。

如需更详细的电气曲线、钳位电压随脉冲电流变化图或封装尺寸图,我可以帮助整理或引导查阅相关数据手册。

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