WMSIC Electronic Components

TWGMC SMAJ36A TVS Diode SMAJ36A

ModelSMAJ36A
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 SMAJ36A
Type
TWGMC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
SMAJ36A
Electronic Component
1
Package
DO-214AC
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.108g
Electronic Component
1
Electronic Component
BM0265826634
Operating Temperature
65℃~+150℃
Voltage
58.1V
Current(Ir)
1uA
Voltage(VBR)
44.2V
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.

SMAJ36A 静电与浪涌保护TVS管产品概述

一、产品定位与核心用途

SMAJ36A是一款单向瞬态抑制二极管(TVS),核心作用是为电子电路提供静电放电(ESD) 和浪涌脉冲 防护,避免敏感元器件(如MCU、传感器、通信芯片等)因过压损坏。它针对单方向浪涌设计,适配需要小体积、宽温工作的电子设备,是消费电子、工业控制等领域的常用防护器件。

二、核心电气参数详解

参数是TVS管性能的核心,SMAJ36A的关键参数及实际意义如下:

  • 极性:单向:仅对某一方向(如电源正→地)的浪涌起防护作用,需严格匹配电路极性;
  • 反向截止电压(Vrwm):36V:电路正常工作时,反向施加的最大安全电压(超过则可能击穿,正常工作禁止超过);
  • 击穿电压(Vbr):44.2V:反向浪涌触发时的典型击穿电压(略高于Vrwm,是防护启动的阈值);
  • 钳位电压:58.1V(10/1000μs脉冲):浪涌峰值时,TVS管将电压钳位到的安全值(越低越能保护后级器件,如MCU过压阈值通常为60V左右,刚好适配);
  • 峰值脉冲电流(Ipp):6.9A:对应10/1000μs浪涌波形(标准工业测试波形)下,能承受的最大脉冲电流;
  • 峰值脉冲功率(Ppp):400W:上述电流下的功率容量,满足大多数小功率电路的浪涌防护需求;
  • 反向漏电流(Ir):1μA:正常工作时反向漏电流极小,不影响电路信号传输与功耗;
  • 工作温度:-65℃~+150℃:宽温范围覆盖工业级、户外设备的极端环境要求(如高原低温、沙漠高温)。

三、封装与品牌信息

  • 封装:DO-214AC(SMA封装):表面贴装式封装,体积仅约2.7×1.8×1.1mm,适配高密度PCB设计(如智能手机、小型工业模块),支持回流焊、波峰焊等常规焊接工艺;
  • 品牌:TWGMC(台湾迪嘉):专注于保护器件研发生产的厂商,产品符合RoHS、REACH等环保标准,通过ISO9001质量管理体系认证,品质稳定可靠。

四、典型应用场景

SMAJ36A因小体积、宽温及针对性防护,适用于以下场景:

  1. 消费电子:智能手机/平板的USB/Type-C接口、蓝牙耳机充电座、智能手表的信号端口防护;
  2. 工业控制:PLC输入输出模块、传感器节点、小型电机驱动电路的浪涌防护(适应-40℃~+85℃的工业环境);
  3. 通信设备:路由器、交换机的以太网端口、WiFi模块的ESD防护;
  4. 汽车电子(辅助):车载充电器、车载显示屏的低功率电路防护(宽温满足车载环境部分需求)。

五、性能优势总结

  1. 宽温可靠性:-65℃~+150℃的工作范围,能在极端环境下稳定工作,避免户外/工业设备因温度变化失效;
  2. 低干扰设计:1μA的反向漏电流,对电路信号、功耗影响极小,适合敏感模拟/数字电路;
  3. 精准防护:58.1V钳位电压精准,避免浪涌电压击穿后级器件,提升电路可靠性;
  4. 高集成度:DO-214AC小体积,适配现在小型化电子设备的PCB布局需求(如折叠屏手机、微型传感器);
  5. 高性价比:TWGMC的成熟工艺降低成本,适合批量应用场景(如消费电子量产)。

六、使用注意事项

  1. 极性匹配:单向TVS需按正负极接入电路(如电源正接TVS阳极,地接阴极),接反则防护失效;
  2. 电压适配:Vrwm需略高于电路正常工作电压(如电路工作电压30V,选36V合适),避免正常工作时击穿;
  3. 功率校验:若电路浪涌功率超过400W,需并联多只或选择更高功率型号(如SMAJ40A);
  4. 焊接规范:回流焊峰值温度≤260℃(时间≤30s),波峰焊温度≤240℃(时间≤5s),避免热损坏器件。

SMAJ36A作为一款成熟的单向TVS管,凭借平衡的性能与成本,成为消费电子、工业控制等领域静电/浪涌防护的常用选择,能有效提升电路的抗干扰能力与长期可靠性。

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