WMSIC Electronic Components

TWGMC SMAJ6.0A TVS Diode SMAJ6.0A

ModelSMAJ6.0A
PackageDO-214AC
BrandTWGMC
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
TWGMC SMAJ6.0A
Type
TWGMC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
SMAJ6.0A
Electronic Component
1
Package
DO-214AC
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.101g
Electronic Component
1
Electronic Component
BM0265817634
Operating Temperature
65℃~+150℃
Voltage
10.3V
Electronic Component
IEC 61000-4-2
Current(Ir)
800uA
Voltage(VBR)
7.37V

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

SMAJ6.0A TVS管产品概述

一、产品基本定位与封装

SMAJ6.0A是台湾迪嘉(TWGMC)推出的单向瞬态抑制二极管(TVS),核心功能为静电放电(ESD)和低压浪涌干扰防护,采用DO-214AC封装(俗称SMA封装)——这是一种小型贴片封装,尺寸紧凑(典型值:长2.7mm×宽1.7mm×高1.1mm),适配高密度PCB设计,可通过自动贴装设备快速生产,适合消费电子、工业控制等对空间要求较高的场景。

二、核心电气参数解析

该产品的电气参数围绕“浪涌/ESD防护有效性”和“系统兼容性”设计,关键参数如下:

  1. 反向截止电压(Vᵣₘₘ):6V
    指TVS正常工作时允许施加的最大反向直流电压,系统工作电压需低于此值(如5V电源系统),避免TVS在常态下导通漏电流过大,影响系统功耗。

  2. 钳位电压(V_C):10.3V
    是TVS在额定峰值脉冲电流下的峰值电压,直接决定防护效果——当浪涌/ESD脉冲到来时,TVS会快速击穿并将电压钳位在10.3V以内,保护后端敏感元件(如MCU、传感器)不被过压损坏(需确保后端元件耐压高于10.3V)。

  3. 峰值脉冲电流(Iₚₚ)与功率(Pₚₚ):38.8A@10/1000μs、400W@10/1000μs
    采用10/1000μs标准浪涌波形(电流从0上升到峰值耗时10μs,再下降到峰值的50%耗时1000μs),体现了产品对“慢速浪涌”的耐受能力,可应对电源启动浪涌、雷电感应浪涌等常见干扰。

  4. 击穿电压(V_B):7.37V
    反向电压超过此值时,TVS开始击穿导通(但未达到钳位电压),是从“截止”到“防护”的过渡阈值,与Vᵣₘₘ形成约1.37V的余量,避免系统电压波动误触发TVS。

  5. 反向电流(Iᵣ):800μA
    指Vᵣₘₘ下的反向漏电流,此值较小,可降低常态下的功耗,避免影响系统正常工作(如低功耗传感器电路)。

  6. 工作温度范围:-65℃~+150℃
    覆盖工业级宽温要求,可在极端环境(如户外设备、汽车电子辅助系统)中稳定工作,无需额外散热设计。

三、防护性能与标准符合性

SMAJ6.0A符合IEC 61000-4-2静电放电标准,该标准定义了接触放电(最高8kV)和空气放电(最高15kV)的测试要求,产品可有效抑制此类静电干扰,避免电子设备出现数据错误、硬件损坏等问题。此外,其脉冲功率参数可满足IEC 61000-4-5浪涌抗扰度的部分低压场景需求(如1.2/50μs电压浪涌、8/20μs电流浪涌的低等级测试)。

四、典型应用场景

基于参数特性,SMAJ6.0A适用于以下低压系统的防护:

  1. 消费电子接口:手机、平板、笔记本的USB、HDMI、音频接口,防护静电放电和插拔浪涌;
  2. 工业控制I/O口:PLC、传感器、执行器的信号输入输出端,应对现场电磁干扰;
  3. 低压电源电路:5V直流电源的输入端/输出端,抑制电源启动浪涌和雷电感应过压;
  4. 小型通信设备:路由器、交换机的以太网接口,防护静电和浪涌干扰。

五、选型与使用注意事项

  1. 极性匹配:因是单向TVS,需注意电路中的浪涌方向(如电源正→地的浪涌,需将TVS反向并联在电源端);若需双向防护,应选择SMAJ6.0CA(双向型号);
  2. 电压余量:系统工作电压需低于Vᵣₘₘ(如5V系统选6V Vᵣₘₘ),避免常态漏电流过大;
  3. 封装适配:DO-214AC封装需匹配PCB的焊盘设计,贴装时注意回流焊温度(需符合TWGMC的焊接规范,典型峰值温度260℃左右);
  4. 并联应用:若需更高脉冲功率,可将多个SMAJ6.0A并联(注意极性一致),但需保证电流分布均匀(可通过匹配PCB走线阻抗实现)。

综上,SMAJ6.0A凭借紧凑封装、宽温范围和可靠的浪涌/ESD防护能力,成为低压电子系统的高性价比防护器件,可覆盖多数消费电子、工业控制场景的抗干扰需求。

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