WMSIC Electronic Components

CJ CJSMAJ16A

ModelCJSMAJ16A
PackageSMAG
BrandCJ
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
CJ CJSMAJ16A
Type
CJ
Minimum package
5000 卷

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
CJSMAJ16A
Electronic Component
1
Package
SMAG
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.113g
Electronic Component
1
Electronic Component
BM0265694902
Voltage
25.7V
Current(Ir)
5uA
Voltage(VBR)
19.69V
Electronic Component
Electronic Component
Electronic Component
5000

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

CJSMAJ16A 瞬态抑制二极管(TVS)产品概述

CJSMAJ16A是江苏长电(CJ)推出的单向瞬态抑制二极管(TVS),专为电子设备的过压防护设计,可有效抑制静电放电(ESD)、电快速瞬变脉冲群(EFT)及雷击感应等瞬态脉冲干扰,保护后端敏感电路免受损坏。作为长电SMAG封装系列的核心产品,其凭借精准的电气参数、小型化设计及可靠的防护能力,成为低电压电子设备的理想防护方案。

一、产品核心定位与品牌背景

江苏长电(CJ)是国内领先的半导体元器件制造商,在分立器件领域拥有20余年研发与生产经验,产品覆盖TVS、二极管、三极管等多个系列,广泛应用于消费电子、通信、工业控制等领域。CJSMAJ16A定位为低电压电路的通用瞬态防护器件,针对16V以下正常工作电压的电路提供高可靠性过压保护,同时适配便携式设备的小型化设计需求。

二、关键电气参数详解

CJSMAJ16A的电气参数经过精准优化,可满足多数低电压设备的防护需求,核心参数解读如下:

1. 极性与工作逻辑

采用单向TVS设计:正常工作时反向截止(承受≤16V电压),当瞬态过压超过击穿电压时,反向快速击穿并钳位电压,抑制过压峰值;正向表现为普通二极管特性,不影响正向电流传输。

2. 核心防护参数

  • 反向截止电压(Vrwm):16V,即设备正常工作时TVS允许的最大反向电压,此时TVS处于截止状态,漏电流极小;
  • 击穿电压(Vbr):典型值19.69V,是TVS反向击穿的起始电压,过压达到该值时TVS开始导通钳位;
  • 钳位电压(Vc):25.7V(10/1000us波形下),为TVS击穿后稳定的电压阈值,确保后端电路电压不超过安全范围;
  • 峰值脉冲电流(Ipp):15.4A(10/1000us波形下),体现TVS在瞬态脉冲下的最大电流承载能力;
  • 峰值脉冲功率(Ppp):400W(10/1000us波形下),是TVS能承受的最大脉冲功率,直接反映防护强度(10/1000us为国际通用脉冲波形标准);
  • 反向漏电流(Ir):5uA(Vrwm下),低漏电流可避免对电路正常工作造成干扰,适合低功耗设备。

三、封装形式与物理特性

CJSMAJ16A采用SMAG表面贴装封装,具有以下特点:

  • 小型化设计:尺寸紧凑(约2.0×1.25×1.0mm),适配高密度PCB布局,节省设备内部空间;
  • 环保合规:符合RoHS及无铅焊接标准,满足全球市场环保要求;
  • 焊接兼容性:可承受常规回流焊、波峰焊的温度曲线,生产工艺兼容性好;
  • 机械可靠性:封装结构稳定,抗振动、抗冲击能力满足工业及消费电子的使用需求。

四、典型应用场景

凭借低电压、小型化、高防护的特点,CJSMAJ16A适用于以下场景:

  1. 消费电子终端:手机、平板、笔记本的充电接口(USB Type-C/Micro USB)、数据端口(HDMI、耳机)的ESD防护;
  2. 通信设备:路由器、交换机、光模块的信号端口、电源模块的过压防护,抑制EFT及雷击感应干扰;
  3. 工业控制:小型传感器(温度、压力)、PLC输入输出端口的防护,保护敏感检测电路;
  4. 车载低压电路:车载USB充电口、显示屏辅助电路的防护(通用级设计,适用于低压辅助系统)。

五、产品优势与设计价值

CJSMAJ16A在电路设计中具有显著价值:

  • 精准防护:钳位电压稳定(25.7V),可有效保护MCU、传感器等敏感元件,避免过压损坏;
  • 低功耗干扰:5uA反向漏电流不增加电路静态功耗,适合低功耗设备设计;
  • 高可靠性:长电CJ的生产工艺成熟,产品一致性好,批量供应稳定,降低设备故障率;
  • 成本效益:在满足防护需求的前提下,提供高性价比解决方案,适合大规模量产。

总结

CJSMAJ16A作为一款单向TVS,凭借其精准的电气参数、小型化封装及可靠的防护能力,成为低电压电子设备瞬态过压防护的理想选择,可广泛应用于消费电子、通信、工业等多个领域,助力设备提升抗干扰能力与可靠性。

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