WMSIC Electronic Components

KUU KSMAJ5.0A-E3/61

ModelKSMAJ5.0A-E3/61
PackageSMA
BrandKUU
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
KUU KSMAJ5.0A-E3/61
Type
KUU
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
KSMAJ5.0A-E3/61
Electronic Component
1
Package
SMA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.105g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0264873486
Operating Temperature
55℃~+150℃
Voltage
9.2V
Current(Ir)
800uA
Voltage(VBR)
6.4V

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

KSMAJ5.0A-E3/61 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心价值

KSMAJ5.0A-E3/61是一款单向瞬态抑制二极管(TVS),专为电子电路的瞬态过压防护设计,核心作用是快速响应并钳位瞬态脉冲电压,避免敏感半导体器件(如MCU、传感器、通信芯片等)因过压击穿损坏。该器件集成了高脉冲承受能力与低漏电流特性,适配多领域高密度PCB设计需求,是消费电子、工业控制等场景的主流防护器件之一。

二、关键电气性能参数解析

本器件的电气参数围绕“过压防护的有效性与稳定性”优化,核心参数及工程意义如下:

2.1 反向截止电压(Vrwm):5V

Vrwm是器件正常工作时(无瞬态脉冲)可承受的最大反向直流电压,即后级电路的典型工作电压上限(如5V供电系统)。此参数下器件反向漏电流极低,不影响电路正常功耗,可直接并联在5V供电或信号端口。

2.2 钳位电压(Vc):9.2V

钳位电压是器件在承受额定峰值脉冲电流(Ipp) 时的最大电压输出,是过压防护的核心指标——它直接决定后级敏感器件的安全阈值(需满足Vc < 后级IC耐压)。该器件9.2V的钳位电压,可有效保护5V耐压的主流芯片(如MCU、运放等),避免过压击穿。

2.3 峰值脉冲电流(Ipp):43.5A

Ipp是器件在单次8/20μs标准脉冲波形下可承受的最大电流,代表其抗强瞬态冲击能力。该参数可覆盖大多数应用场景的脉冲强度(如ESD脉冲约为20-50A,本器件裕量充足)。

2.4 峰值脉冲功率(Ppp):400W

Ppp=Vc×Ipp(近似),是器件单次脉冲的最大功率容量,直接反映防护裕量。400W的功率容量为电路提供了充足冗余,避免因脉冲功率超出器件极限导致防护失效。

2.5 击穿电压(Vbr):6.4V

击穿电压是器件反向击穿的起始电压,介于Vrwm(5V)与Vc(9.2V)之间。当瞬态电压超过Vbr时,器件快速导通(响应时间<1ns),将电压钳位至Vc,实现“快速响应+精准钳位”。

2.6 反向漏电流(Ir):800μA

Ir是Vrwm(5V)下的反向漏电流,该值越低,器件对电路正常工作的功耗影响越小。800μA的漏电流满足大多数低功耗应用(如便携式设备)的需求,不会导致电池续航下降。

三、机械与封装特性

3.1 封装类型:SMA(DO-214AC)

采用表面贴装SMA封装,尺寸紧凑(典型尺寸:φ2.7×4.0mm),适配自动贴装生产线(SMT),可显著节省PCB空间,适合高密度设计(如智能手机、智能穿戴设备)。封装引脚间距合理,焊接可靠性高,无虚焊风险。

3.2 品牌与可靠性

由KUU品牌生产,该品牌专注于防护器件研发,器件采用高可靠性芯片工艺,封装密封性好,可有效抵御环境湿度、粉尘等影响,长期工作稳定性优异。

四、工作环境与可靠性

4.1 宽温工作范围:-55℃~+150℃

该器件支持工业级宽温范围,可在极端温度环境下稳定工作(如北方户外设备、高温工业车间),无需额外温度补偿电路,降低系统设计复杂度。

4.2 重复脉冲能力

TVS器件具备多次脉冲耐受能力(典型重复次数>1000次),可应对频繁出现的瞬态脉冲(如设备插拔产生的ESD、电磁干扰产生的EFT),无需频繁更换器件,降低维护成本。

五、典型应用场景

KSMAJ5.0A-E3/61的参数适配多领域防护需求,核心应用场景包括:

5.1 消费电子领域

  • 手机、平板的USB接口、HDMI接口防护(应对插拔ESD、浪涌);
  • 智能穿戴设备的传感器端口防护(如心率传感器、加速度计);
  • 蓝牙耳机、智能音箱的充电端口防护。

5.2 工业控制领域

  • PLC(可编程逻辑控制器)的输入输出端口防护;
  • 工业传感器(如温度、压力传感器)的信号端口防护(避免现场电磁干扰产生的过压);
  • 变频器、伺服驱动器的控制端口防护。

5.3 通信设备领域

  • 路由器、交换机的以太网端口防护(应对雷击浪涌、EFT);
  • 无线基站的射频接口防护(避免瞬态脉冲损坏功放芯片);
  • 光纤收发器的电源端口防护。

5.4 汽车电子领域(扩展应用)

虽未明确标注汽车级认证,但宽温特性可适配部分车载电子设备(如车载显示屏的按键接口防护、车载充电器的输出端口防护)。

六、选型注意事项

  1. 需确认后级电路的工作电压(需≤Vrwm=5V),避免器件反向导通;
  2. 需评估应用场景的脉冲强度(需≤Ipp=43.5A、Ppp=400W),若脉冲强度更高,需并联多个器件或选择更高功率型号;
  3. 若需双向防护(如正负脉冲均需抑制),需选择双向TVS器件(本器件为单向)。

本器件凭借高性价比、紧凑封装与宽温特性,成为5V系统瞬态防护的主流选择,可有效提升电路的抗干扰能力与可靠性。

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