WMSIC Electronic Components

Brightking SMBJ24CA-AT/TR13 SMBJ24CA

ModelSMBJ24CA-AT/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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMBJ24CA-AT / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMBJ24CA-AT/TR13
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.25g
Electronic Component
1
Electronic Component
BM0258761045
Operating Temperature
55℃~+150℃
Voltage
38.9V
Current(Ir)
1uA
Voltage(VBR)
26.7V
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.

SMBJ24CA-AT/TR13(Brightking 台湾君耀)产品概述

一、产品简介

SMBJ24CA-AT/TR13 是 Brightking(台湾君耀)生产的双向瞬态电压抑制二极管(TVS),采用 SMB(DO-214AA)封装,专为抑制瞬态过压和浪涌脉冲设计。该型号在反向截止电压 Vrwm 为 24V 的工作点上,可提供高达 600W 的峰值脉冲功率(Ppp),对正负极性冲击均具有对称的钳位保护能力,适合工业与车载 24V 级别电源与信号线的防护应用。

主要参数(典型/标称):

  • 反向截止电压 Vrwm:24 V
  • 击穿电压 Vbr:26.7 V
  • 钳位电压 Vc:38.9 V
  • 峰值脉冲电流 Ipp:15.5 A
  • 峰值脉冲功率 Ppp:600 W
  • 类型:双向 TVS
  • 封装:SMB (DO-214AA)
  • 品牌:Brightking(台湾君耀)

二、功能与特点

  • 双向抑制:对正负极性瞬态均能有效吸收,适用于交流或两极电路(例如线对线、双向信号线、对称电源)。
  • 高能量吸收:600W 的峰值脉冲功率(在标准测试脉冲条件下)能承受较强的浪涌与雷击诱发电压尖峰。
  • 低钳位电压:在 15.5A 峰值冲击时,钳位电压约为 38.9V,能在保护设备的同时降低过压应力。
  • 标准封装:SMB(DO-214AA)封装利于自动贴片与回流焊工艺,便于大规模生产和装配。

三、典型应用场景

  • 工业 24V 电源总线、配电与控制设备的浪涌保护
  • 卡车和商用车的车载电子(对 24V 车载系统的瞬态抑制)
  • 电机驱动、继电器驱动与传感器接口的瞬间过压保护
  • 电源输入端、DC/DC 转换器出口及电池管理系统(对称浪涌)
  • 通信与接口线路(要求双向钳位的差分/对称信号保护)

四、安装与电路连接建议

  • 双向 TVS 常并联接入被保护线,两端直接接地或端对端并联于被保护节点上:
    • 直流单向场合:建议选用单向 TVS;若使用本型号需确保电路兼容双向结构。
    • 双向/交流场合:在负载之间并联放置,能在正负极性瞬态时均提供保护。
  • PCB 布局建议:将封装靠近被保护元件或连接器放置,尽量使用宽铜箔、短走线和热沉铜区以提升瞬态能量散热能力;必要时在器件下方及相连铜区配置过孔以增强散热。
  • 焊接工艺:遵循 SMB 封装回流规范,避免长时间高温暴露以防器件性能退化。

示意(并联接法):

  • 直流/对称线: L+ ——[被保护电路]—— | | +------[ TVS 双向 ]---+ | | GND -------------------

五、选择与设计注意事项

  • 工作电压裕量:选择 Vrwm 应比实际系统正常工作电压略高,以避免器件在正常工作时发生漏导或误动作。对 24V 系统,Vrwm = 24V 为常见选择,但请依据系统最大稳态电压确认裕量。
  • 钳位与安全:钳位电压应低于系统中敏感器件或绝缘/电压承受极限,以确保在冲击时下游设备不受损。
  • 峰值能力匹配:确认预期浪涌或雷击能量在器件的 Ppp 与 Ipp 范围内;若预期冲击更强,应并联多只或选择更高功率级别的 TVS。
  • 环境与可靠性:关注器件的温度系数、漏电特性以及长期稳健性;高温环境下漏电与老化会影响保护性能,应在规格书中查阅最大结温和寿命相关数据。

六、包装与采购信息

  • 型号完整标识:SMBJ24CA-AT/TR13(TR13 表示卷带包装规格,便于 SMT 自动化贴装)
  • 封装:SMB(DO-214AA),适合自动化生产线的装配与回流焊工艺
  • 品牌与产地:Brightking(台湾君耀)
  • 采购建议:批量采购时确认供货包装(盘带/散装)、出厂检验报告与 RoHS 等合规性文件,必要时向供应商索取样片进行实机验证。

七、可靠性与测试

  • 建议在设计阶段进行真实脉冲(如 10/1000 μs 或 8/20 μs,依据系统标准)下的验证测试,评估钳位行为与热稳定性。
  • 在高冲击应用中,可通过并联器件或增加前端熔断/限流元件提高系统整体可承受能量。
  • 常规环境应考虑温升、回流焊耐受性及长期老化对击穿电压和泄漏电流的影响,严格按照数据手册的绝对最大额定值使用。

如需进一步规格书(datasheet)、封装外形尺寸图或推荐 PCB 布局范例,我可以根据 Brightking 官方资料为您检索并整理。

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