WMSIC Electronic Components

Brightking SMBJ22CA/TR13 SMBJ22CA

ModelSMBJ22CA/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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMBJ22CA / TR13
Type
BRIGHTKING
Minimum package
3000

Technical parameters

Electronic Component
Brightking
Electronic Component
SMBJ22CA/TR13
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.218g
Electronic Component
1
Electronic Component
BM0257356750
Voltage
35.5V
Current(Ir)
1uA
Voltage(VBR)
24.4V
Electronic Component
3000
Power(Ppp)
600W
Current(Ipp)
16.9A

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

SMBJ22CA/TR13 产品概述

一 概述与定位

SMBJ22CA/TR13 是台湾君耀(Brightking)推出的一款双向瞬态电压抑制器(TVS),采用 SMB(DO-214AA)封装,专为保护 24V 级别电源和信号线免受瞬态过电压冲击而设计。该器件在反向工作电压(Vrwm)为 22V 时,具有快速响应、较低钳位电压和高脉冲吸收能力,适用于工业控制、通信接口、电源输入和各种需要对称抑制的双极性浪涌防护场合。

二 主要参数与电气特性

  • 极性:双向(Bidirectional)
  • 反向截止电压(Vrwm):22 V
  • 击穿电压(Vbr):24.4 V(典型/标称)
  • 钳位电压(Vc):35.5 V(对应峰值脉冲电流)
  • 峰值脉冲电流(Ipp):16.9 A(与 Ppp 和 Vc 对应)
  • 峰值脉冲功率(Ppp):600 W(通常以 10/1000 μs 脉冲波形评定)
  • 反向电流(Ir):1 μA(在 Vrwm 条件下)
  • 封装:SMB (DO-214AA)
  • 品牌:Brightking(台湾君耀)
  • 订货形式:SMBJ22CA/TR13(TR13 表示适用于高速贴片线的卷带包装)

注:Ppp、Ipp 与 Vc 的标称值对应于厂家给定的脉冲测试条件,实际钳位电压会随脉冲波形和环境温度有所变化。

三 主要性能与优势

  • 高频响应快:TVS 器件在瞬态来临时几乎是瞬间导通,能在纳秒级别夹紧过电压,保护下游器件。
  • 高能量吸收:600 W 峰值脉冲功率能力,支持常见工业浪涌情形(如负载开关、感性负载反向脉冲等)。
  • 低漏电流:在 22 V 工作电压下,典型反向电流仅 1 μA,有利于在待机或低功耗设计中的能耗控制。
  • 双向保护:适合需要往返对称浪涌抑制的线路(例如交流小信号线或可能出现反向瞬态的直流系统)。
  • SMB 封装:体积适中,具备较好的热耗散能力,适配波峰/回流焊与自动化贴装流程。

四 典型应用场景

  • 24V 工业控制电源(PLC、传感器、执行器的输入保护)
  • 通讯接口保护(工业以太网、RS-485、CAN 总线在存在双向过电压风险时)
  • 电源线输入防护(电源供电端、适配器接口)
  • 继电器/线圈回路的浪涌抑制(配合其他抑制元件以改善能量散逸)
  • 消费电子、测试设备中可能出现的静电或雷击引发的瞬态事件抑制

五 封装、采购与装配建议

  • SMB(DO-214AA)封装,适合自动化贴片生产;TR13 表示按卷带(Tape & Reel)包装,便于 SMT 线使用。
  • 焊接:请遵循厂家推荐的回流/波峰焊温度曲线与工艺规范,避免超温或长时间高温导致器件性能退化。
  • 布局建议:将 TVS 器件尽可能靠近受保护点(如接头或器件电源入口)布置,减少走线寄生电感与回路面积;尽量缩短连接线并使用宽铜箔或加热沉铜孔以利散热。
  • 储存与防护:器件为半导体,避免静电环境、潮湿和机械应力,若长期储存请按厂家建议防潮处理。

六 选型与可靠性注意事项

  • 确认系统工作电压:Vrwm = 22 V 适合标称 24 V 系统(24V 系统在正常工作时不会触发击穿);若系统电压明显高于 22 V,应选择更高 Vrwm 的型号。
  • 单次能量限定:600 W/Ppp 表示瞬态脉冲能量吸收能力有限,若系统可能遭受更高能量冲击(如直接雷击或长期高能连续冲击),需采用更大功率的保护方案或级联保护结构(一级大功率浪涌吸收 + 二级精密 TVS)。
  • 温度与功率降额:在高环境温度或多次冲击条件下,器件的吸收能力会下降,应考虑热管理和适当的设计余量。
  • 双向 vs 单向:该器件为双向,适用于可能出现正负方向过压的场合;若只需正向保护,单向 TVS 可提供更低的漏电流和更精确的钳位性能。

七 参考电路与使用要点

  • 电源端保护:将 SMBJ22CA 两端并联于电源线与地(或正负线之间)处,靠近输入端放置。
  • 信号线保护:对差分信号或总线,双向 TVS 可夹在两导线间以抑制双向突波。
  • 配合电感/电阻:在某些高能场合,可在 TVS 前串联限流电阻或置入电感,以分散能量并降低瞬态电流峰值。

总结:SMBJ22CA/TR13 以其 22 V 工作电压、35.5 V 钳位值与 600 W 的瞬态吸收能力,适合对 24 V 类电源与双向信号线进行高效的瞬态防护。正确的布局、热管理与选型余量将显著提高系统可靠性与使用寿命。若需更详细的引脚热特性或波形测试数据,建议参考 Brightking 的正式数据手册或联系供应商获取完整技术资料。

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