WMSIC Electronic Components

FUXINSEMI SM6T36A

ModelSM6T36A
PackageDO-214AA(SMB)
BrandFUXINSEMI
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
FUXINSEMI SM6T36A
Type
FUXINSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
SM6T36A
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.185g
Electronic Component
1
Electronic Component
BM0265669345
Operating Temperature
55℃~+150℃
Voltage
49.9V
Current(Ir)
5uA
Voltage(VBR)
37.8V
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.

SM6T36A瞬态抑制二极管(TVS)产品概述

一、产品核心定位与类别

SM6T36A是富芯森美(FUXINSEMI) 推出的一款单向瞬态抑制二极管(TVS),属于SM6T系列表面贴装保护器件。其核心作用是通过ns级快速响应瞬态过压(如静电放电ESD、雷击浪涌、插拔脉冲等),将电路电压钳位在安全范围内,避免后端敏感电子元件(如IC、传感器、晶体管等)因过压损坏,广泛适用于中低电压的电路防护场景。

二、关键电气参数深度解析

SM6T36A的参数设计精准匹配中低压电路的浪涌防护需求,核心参数及实际意义如下:

1. 电压类核心参数

  • 反向截止电压(Vrwm:30.8V):电路正常工作时,TVS反向偏置的最大耐受电压(无浪涌时TVS截止,不影响电路供电)。需确保电路正常电压≤30.8V,避免TVS误导通。
  • 击穿电压(Vbr:37.8V):浪涌电压超过此值时,TVS快速击穿导通,将过压能量泄放至地(响应时间<1ns)。
  • 钳位电压(Vc:49.9V):击穿导通后,TVS两端电压稳定钳位在该值以下,是保护后级器件的核心指标(需确保后级元件最大耐压≥49.9V)。

2. 电流与功率参数

  • 峰值脉冲电流(Ipp:12A):在8/20μs标准浪涌波形下,TVS能承受的最大浪涌电流峰值,反映单次浪涌的电流耐受能力。
  • 峰值脉冲功率(Ppp:600W):在10/1000μs波形下的最大脉冲功率,是浪涌能量耐受的综合指标(若浪涌能量超此值,需并联多个器件)。
  • 反向漏电流(Ir:5μA):反向截止电压下的漏电流,数值极小,确保正常工作时无额外功耗,不影响电路效率。

3. 环境适应性参数

  • 工作温度范围(-55℃~+150℃):覆盖工业级宽温场景,可稳定工作于极端高低温环境(如汽车发动机舱、户外通信设备)。

三、封装与可靠性设计

SM6T36A采用DO-214AA(SMB)表面贴装封装,具备以下优势:

  • 体积小巧:封装尺寸约2.9mm(长)×3.8mm(宽)×1.8mm(高),适配高密度PCB布局(如小型家电、便携设备);
  • 工艺兼容性:支持回流焊、波峰焊等主流SMT工艺,适配自动化生产;
  • 机械强度:封装材料耐温性与机械强度高,可承受焊接应力及长期环境振动;
  • 散热性能:封装设计利于浪涌能量快速散热,避免器件因过热失效。

四、典型应用场景

结合参数与封装特点,SM6T36A的核心应用场景包括:

  1. 工业控制:PLC输入输出接口、传感器模块(温度/压力传感器)、电机驱动电路的浪涌防护;
  2. 汽车电子:车载传感器(胎压监测、倒车雷达)、小功率车载电路(中控按键)的过压保护(宽温适配汽车环境);
  3. 通信设备:路由器、交换机、光纤收发器的RJ45接口、电源端口的ESD与雷击防护;
  4. 消费电子:手机充电器、智能家电(智能音箱、扫地机器人)的电源输入与数据接口保护;
  5. 医疗设备:低电压医疗传感器(血氧仪、血糖仪)的接口防护(漏电流小,符合医疗设备低功耗要求)。

五、选型与应用注意事项

为确保保护效果,应用时需注意以下要点:

  1. 参数匹配:
    • Vrwm需≥电路正常工作电压(如24V电路可选30.8V Vrwm);
    • 钳位电压Vc需≤后级元件最大耐压(如IC耐压50V时,49.9V Vc完全满足)。
  2. 极性要求:单向TVS需严格匹配电路极性(反向接反会导致TVS在正常电压下导通,损坏电路)。
  3. 布局建议:尽量靠近被保护器件(如IC引脚),减少引线长度(降低引线电感,避免浪涌电压未被有效钳位)。
  4. 并联扩容:若浪涌功率超过600W,可并联多个SM6T36A(需确保并联器件参数一致性,避免电流不均)。
  5. 环境适配:工作温度需控制在-55℃~+150℃范围内,避免超温导致器件性能下降。

SM6T36A凭借宽温范围、高浪涌耐受能力与紧凑封装,成为中低压电路瞬态防护的高性价比选择,适用于多行业的可靠性设计需求。

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