WMSIC Electronic Components

Brightking SMBJ220A/TR13 SMBJ220A

ModelSMBJ220A/TR13
PackageSMB(DO-214AA)
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMBJ220A / TR13
Type
BRIGHTKING
Minimum package
3000

Technical parameters

Electronic Component
Brightking
Electronic Component
SMBJ220A/TR13
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.198g
Electronic Component
1
Electronic Component
BM0259733003
Operating Temperature
65℃~+150℃
Voltage
356V
Current(Ir)
1uA
Voltage(VBR)
246V
Electronic Component
3000
Power(Ppp)
600W

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

SMBJ220A/TR13 产品概述

一、产品简介

SMBJ220A/TR13 是 Brightking(台湾君耀)出品的一款单向瞬态电压抑制器(TVS)二极管,封装为 SMB(DO-214AA)。此器件专为抑制瞬态过电压和浪涌脉冲设计,可在工业电源、通信接口及各种需要抑制瞬态干扰的电路中提供可靠保护。器件的主要基础参数如下:

  • 极性:单向
  • 反向截止电压 Vrwm:220 V
  • 击穿电压(Vbr):246 V
  • 钳位电压(Vc,峰值脉冲下):356 V
  • 峰值脉冲电流 Ipp:1.7 A
  • 峰值脉冲功率 Ppp:600 W
  • 反向电流 Ir:1 µA
  • 工作温度范围:-65 ℃ ~ +150 ℃
  • 类型:TVS
  • 封装:SMB(DO-214AA)
  • 品牌:Brightking (台湾君耀)
  • 型号:SMBJ220A/TR13

二、关键电气参数及含义

  • 反向截止电压 Vrwm = 220 V:在正常反向偏置下器件允许的最大持续电压,选择保护器件时应确保系统工作电压(峰值)低于或接近 Vrwm。
  • 击穿电压 Vbr = 246 V:器件从截止进入雪崩击穿的电压区间,通常略高于 Vrwm。
  • 钳位电压 Vc = 356 V:在指定峰值脉冲电流条件下器件对浪涌电压的钳位水平,表征被保护端在遭受冲击时的最高电压。
  • 峰值脉冲功率 Ppp = 600 W:指在标准测试脉冲条件(详见厂方数据表)下器件能够承受的瞬时功率峰值。需注意这是脉冲能量能力,不等同于器件可承受的连续功率。
  • 峰值脉冲电流 Ipp = 1.7 A:在给定测试条件下流过器件的脉冲电流峰值,对应钳位电压的测量点。
  • 反向电流 Ir = 1 µA:在 Vrwm 条件下的漏电流,体现器件的静态损耗和对电路的影响。

三、适用场景与限制

适用场景:

  • 直流或低频脉冲供电系统中对过电压瞬态的保护(例如工业控制电源、直流母线、变电控制回路)。
  • 通信接口、传感器输入和继电器驱动线的浪涌防护。
  • 对抗雷击、开关瞬态和静电放电造成的瞬间高压。

使用限制与注意事项:

  • Vrwm = 220 V 表示器件的持续反向耐压为 220 V,若用于交流市电 220 VAC 系统需慎重:220 VAC 的有效值对应约 311 V 峰值,明显高于 Vrwm,因此该型号通常不适合直接并联到 220 VAC 主线作为长期钳位器件。
  • Ppp 为脉冲额定值,器件不能用于持续吸收大功率能量的场合;若电路会有频繁或持续的高能脉冲,应选用更高能量级或并联/升级散热方案。
  • 单向 TVS 在反向(负极)方向有击穿特性,正向导通时表现类似硅二极管;在对交流对称保护需求时,应使用双向 TVS。

四、封装与安装要点

  • SMB(DO-214AA)封装适合自动贴片装配,具备较好的散热路径和机械耐受性。
  • PCB 布局建议:在 TVS 两端留足够铜箔用于热量散出,尽可能缩短输入线与接地点的走线长度,接地应采用低阻抗的地平面或大面积铜箔以提升脉冲吸收能力。
  • 极性识别:单向 TVS 在封装上通常有阴极标记(带环),安装时注意方向以确保工作在反向抑制模式。

五、可靠性与环境适应性

  • 宽工作温度范围(-65 ℃ ~ +150 ℃)使其适应工业级、严酷环境的温度条件。
  • 典型应用时还应考虑热循环、机械振动和长期脉冲累积对器件寿命的影响。推荐在设计中参考厂方完整的可靠性与寿命数据,以及在极端环境下的降额指南。

六、选型与采购建议

  • 若系统最大稳态电压接近或高于 220 V(峰值),请改选更高 Vrwm 的型号或使用双级保护方案(一级吸收大能量、二级精密钳位)。
  • 确认脉冲波形与数据表测试条件一致(例如 10/1000 µs 或 8/20 µs),并据此评估 Ppp 与 Ipp 是否满足实际冲击能量。
  • /TR13 通常表示卷带盘装(便于贴装),大批量生产可选择带卷装规格以降低人工成本。

总结:SMBJ220A/TR13 提供了可靠的单向瞬态过电压保护能力,适合多数直流和工业瞬态抑制场合。在具体应用前,请务必核对系统最大稳态电压、预期脉冲能量和钳位需求,合理布线与散热,确保长期可靠运行。若需对比其他 Vrwm 或双向型号,可提供电路细节以获得更精准的选型建议。

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