WMSIC Electronic Components

Brightking SMCJ30A-AT/TR13 SMCJ30A

ModelSMCJ30A-AT/TR13
PackageSMC(DO-214AB)
BrandBrightking
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
Brightking SMCJ30A-AT / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMCJ30A-AT/TR13
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.333g
Electronic Component
1
Electronic Component
BM0264856034
Voltage
48.4V
Current(Ir)
1uA
Voltage(VBR)
33.3V
Electronic Component
Electronic Component
Electronic Component
3000

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

Brightking SMCJ30A-AT/TR13 单向TVS二极管产品概述

一、产品定位与核心价值

SMCJ30A-AT/TR13是台湾君耀(Brightking)推出的单向瞬态抑制二极管(TVS),专为低压电路的过压浪涌防护设计。其核心作用是在电路遭遇瞬态脉冲(如雷电感应、开关浪涌、ESD静电放电)时,快速从高阻态切换为低阻态,将电路两端电压钳位在安全范围内,避免敏感元器件(如MCU、传感器、功率器件)因过压损坏,是电子系统可靠性设计中不可或缺的基础保护器件。

二、关键参数深度解析

该产品的核心参数直接决定防护性能,具体解读如下:

  1. 工作电压与击穿特性:反向截止电压(Vrwm)为30V,即正常工作时可长期承受的最大反向电压;击穿电压(Vbr)为33.3V(比Vrwm高10%左右),确保正常工作无误触发,仅在过压时快速击穿。
  2. 浪涌防护能力:峰值脉冲功率(Ppp)达1.5kW,对应峰值脉冲电流(Ipp)31A(由公式(I_{pp}=P_{pp}/V_c)计算,(V_c=48.4V)),可有效抑制中等强度浪涌;钳位电压(Vc)48.4V是浪涌时电路残留的最大安全电压,需匹配被保护器件的耐压(如适合24V以下低压系统)。
  3. 静态漏电流:反向漏电流(Ir)仅1μA,远低于常规电路静态电流要求,对系统正常工作无明显干扰。

三、封装设计与可靠性优势

产品采用SMC(DO-214AB)贴片封装,具备以下实用优势:

  1. 小型化与集成度:封装尺寸(约6.0×3.8×2.5mm)紧凑,适配高密度PCB设计(如消费电子、汽车电子的小型化产品);表面贴装工艺兼容自动化生产,焊接效率高。
  2. 热性能与可靠性:工作温度范围覆盖-55℃~150℃(符合工业级与汽车级要求);多次脉冲浪涌后性能稳定(典型脉冲寿命达数千次);符合RoHS 2.0环保标准,无铅无卤。

四、典型应用场景

SMCJ30A-AT/TR13适用于以下低压电路的过压防护:

  1. 消费电子:手机/平板充电接口、USB Type-C端口,防止充电浪涌或ESD损坏;
  2. 工业控制:PLC输入输出接口、现场传感器(温度/压力)信号端,抑制开关浪涌;
  3. 汽车电子:车载12V电源(点烟器、充电器)、CAN总线接口,应对汽车瞬态浪涌(符合ISO 7637标准);
  4. 通信设备:路由器以太网端口、光纤收发器,防护雷电感应浪涌;
  5. 低压电源:5V/12V/24V直流电源输出端,防止负载切换或雷击过压。

五、品牌与选型参考

台湾君耀(Brightking)是全球知名保护器件厂商,产品覆盖TVS、压敏电阻等,以性能稳定、性价比高著称。

  • 选型注意:若需双向过压防护(如信号双向传输),选同系列SMCJ30CA;需更高工作电压(如36V)选SMCJ36A,需匹配电路电压与浪涌强度。
  • 包装规格:“TR13”表示13英寸编带包装(卷盘式),适合自动化贴装生产。

该产品通过平衡防护性能、封装尺寸与可靠性,成为低压电路过压防护的高性价比选择,广泛应用于消费、工业、汽车等领域。

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