WMSIC Electronic Components

Jingdao Microelectronics SMBJ28CA

ModelSMBJ28CA
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic SMBJ28CA
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SMBJ28CA
Electronic Component
1
Package
SMB
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.167g
Electronic Component
1
Cj- Capacitor
390pF
Electronic Component
BM0224625491
Operating Temperature
65℃~+150℃
Voltage
45.4V
Current(Ir)
1uA
Voltage(VBR)
34.4V
Electronic Component
Electronic Component

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

SMBJ28CA TVS二极管产品概述

概要

SMBJ28CA 是一种由晶导微电子生产的静电和浪涌保护(TVS/ESD)二极管,专门设计用于保护电子设备免受静电放电(ESD)和浪涌电流的损害。以下是对此产品的详细介绍。

基础参数

  • 击穿电压(Vc): 31.1V
    • 这是指在正常工作条件下,TVS二极管开始导通并吸收过电压能量的电压阈值。
  • 反向截止电压(Vrwm): 28V
    • 这是指TVS二极管在反向偏置状态下可以承受的最大持续电压。
  • 峰值脉冲电流(Ipp): 13.3A
    • 这表示TVS二极管可以在短时间内(通常为8/20μs的脉冲)承受的最大电流。
  • 最大钳位电压(Vcl): 45.4V
    • 当TVS二极管导通时,能够限制输出端口的最大电压,防止过电压对设备造成损害。

商品分类

  • 静电和浪涌保护(TVS/ESD)
    • 这类设备旨在保护电子设备免受静电放电和各种类型的浪涌电流(如雷击、电源启动/关机等)造成的损害。

类型

  • TVS(Transient Voltage Suppressor)
    • TVS二极管是一种专门用于瞬态过电压保护的半导体器件,通过快速响应和高效吸收能量来防止过电压对敏感电子设备造成损害。

封装

  • SMB(DO-214AA)
    • SMB封装是一种小型、表面安装封装,适用于空间有限的应用场景。DO-214AA是SMB封装的标准代号,表示其尺寸和引脚布局。

应用场景

电子设备保护

SMBJ28CA广泛应用于各种电子设备中,以保护这些设备免受静电放电和浪涌电流的影响。例如:

  • 通信设备: 手机、无线路由器、调制解调器等。
  • 工业控制系统: PLC、传感器、执行器等。
  • 汽车电子: 汽车音响系统、导航系统、安全系统等。
  • 消费电子: 电视机、电脑、打印机等。

特点

  1. 高效保护:
    • SMBJ28CA能够快速响应瞬态过电压,并通过其高峰值脉冲电流能力有效地吸收和分散能量,从而保护下游设备。
  2. 小尺寸封装:
    • 采用SMB封装,使其在空间有限的应用场景中也能轻松集成。
  3. 低漏电流:
    • 在正常工作状态下,SMBJ28CA具有非常低的漏电流,这意味着它不会对被保护的设备产生显著的负载影响。
  4. 高可靠性:
    • 晶导微电子的严格质量控制和测试过程确保了SMBJ28CA的高可靠性和长期稳定性能。

使用注意事项

  1. 电路设计:
    • 在设计电路时,应确保TVS二极管的安装位置尽可能靠近需要保护的敏感设备,以最大限度地减少线路上的电感和电容,提高保护效果。
  2. 电压匹配:
    • 选择合适的TVS二极管时,需要确保其反向截止电压(Vrwm)大于或等于系统正常工作电压,但小于最大允许过电压,以避免不必要的导通或损坏。
  3. 峰值脉冲电流考虑:
    • 根据预期的最大脉冲电流选择适当的TVS二极管,以确保它能够承受可能出现的最大瞬态电流。

总结

SMBJ28CA TVS二极管是静电和浪涌保护领域的一款强大工具,通过其优异的性能参数和小型化封装,能够有效地保护各种电子设备免受瞬态过电压的影响。其广泛应用于通信设备、工业控制系统、汽车电子以及消费电子等领域,凸显了其在现代电子设计中的重要性。通过合理选择和正确使用SMBJ28CA,可以显著提高电子系统的可靠性和耐用性。

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