WMSIC Electronic Components

ST SMAJ28CA-TR SMAJ28CA

ModelSMAJ28CA-TR
PackageSMA(DO-214AC)
BrandST
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

20 specifications

Core information

Product name
ST(STMicroelectronics) SMAJ28CA-TR
Type
ST
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ST(STMicroelectronics)
Electronic Component
SMAJ28CA-TR
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.13g
Electronic Component
1
Electronic Component
BM0000641344
Operating Temperature
55℃~+150℃
Voltage
59V
Electronic Component
IEC 61000-4-5;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.

SMAJ28CA-TR 产品概述

产品名称: SMAJ28CA-TR
类型: 齐纳二极管
封装类型: SMA (DO-214AC)
厂商: 意法半导体 (STMicroelectronics)

一、产品背景

SMAJ28CA-TR 是一款高性能的瞬态电压抑制器 (TVS),旨在为电路提供强效的静电放电 (ESD) 和浪涌电流保护。凭借其优秀的反向击穿特性和宽广的工作温度范,SMAJ28CA-TR 适用于各种需要保护设备免受电压瞬变影响的应用场景,如消费电子、工业自动化、汽车电子等领域。

二、关键参数

  1. 反向断态电压 (Vr): 典型值为28V,能够有效地限制反向电压在安全范围内,从而保护后端电路。
  2. 击穿电压 (VBR): 测定的最小值为31.1V,确保当电压超过预定值时二极管将迅速导通,消耗过剩的能量。
  3. 电压箝位参数: 当瞬态电流不同(Ipp)时,最大电压箝位值可达到59V,这说明在高峰值脉冲条件下,SMAJ28CA-TR 能保持可靠的保护作用。
  4. 电流与功率: 峰值脉冲电流 (10/1000µs) 为39A,而峰值脉冲功率可达400W,使其能够承受瞬态过电流的冲击,有效防止电路损坏。

三、应用范围

SMAJ28CA-TR 设计用于各种需要电源线路保护的应用,虽然该产品本身不具备电源线路保护功能,但其广泛的电压容量和良好的热稳定性使其成为多个领域的理想选择。其典型应用场景包括:

  • 消费电子: 保护智能手机、平板电脑、家用电器等设备免受电压瞬变的影响,确保设备的长时间稳定运行。
  • 工业设备: 在工业自动化与控制系统中,SMAJ28CA-TR能够保护传感器、PLC 控制器等部件,防止电源干扰造成的故障。
  • 汽车电子: 在汽车中,该器件可用于保护通信系统、导航仪器、LED 照明等敏感电子元件,增强整体电气系统的稳定性。

四、工作温度及稳定性

SMAJ28CA-TR 的工作温度范围广,具有 -55°C 到 150°C 的绝对工作温度特性,这使得其在极端环境条件下依然能够可靠工作。此外,其双向通道设计使得该器件在施加正向或反向电压时均可正常运行,增强了电路设计的灵活性。

五、安装与封装

该产品采用表面贴装型设计 (SMD),封装形式为 DO-214AC (SMA),其小型和轻量化的特性使其适合任何空间有限的电路板。此外,SMA 封装的标记和性能使得其在生产和应用中便于操作,为大规模生产提供了良好的适配性。

六、总结

SMAJ28CA-TR 是一款具有出色性能的齐纳二极管,凭借其稳定的电压特性、强大的电流处理能力以及宽广的应用范围,成为现代电子设备中不可或缺的保护元件。无论是在消费电子、工业应用或汽车电子中,SMAJ28CA-TR 都能提供可靠的电源保护,确保设备安全并有效延长其使用寿命。通过选择 SMAJ28CA-TR,设计工程师可以安心构建高可靠性、高性能的电子系统。

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