Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Brightking SMBJ20CA-AT/TR13 SMBJ20CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMBJ20CA-AT / TR13
- Type
- BRIGHTKING
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Brightking
- Electronic Component
- SMBJ20CA-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
- 0.214g
- Electronic Component
- 1
- Electronic Component
- BM0248904281
- Voltage
- 32.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 22.2V
- 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.
SMBJ20CA-AT/TR13 产品概述
一、产品简介
SMBJ20CA-AT/TR13 为 Brightking（台湾君耀）出品的双向瞬态电压抑制器（TVS），采用 SMB（DO-214AA）封装，专为抑制瞬态浪涌和雷击及开关瞬变设计。器件在输入端遭受高能脉冲时快速限制电压，保护下游半导体和敏感电路，适用于交流线路及双向浪涌保护场合。
二、主要电气参数
- 极性：双向（Bidirectional）
- 额定反向截止电压 Vrwm：20 V
- 击穿电压（典型）：22.2 V
- 钳位电压 Vc（在规定测试条件下）：32.4 V
- 峰值脉冲电流 Ipp：18.6 A（与钳位电压对应）
- 峰值脉冲功率 Ppp：600 W（按厂商指定测试波形与条件）
- 反向漏电流 Ir：1 μA（在 Vrwm 条件下典型）
- 封装：SMB (DO-214AA)
- 类型：TVS 二极管（过压钳位器）
三、典型性能与工作原理
该器件在正常工作电压下呈高阻状态；当瞬态电压超过其击穿电压（约22.2 V）时，导通进入低阻态，将能量限制在钳位电压附近（约32.4 V），并把脉冲能量耗散为热量。双向结构可对称限制正负极性浪涌，适合交流或反向可能出现的线路保护。Ppp 与 Ipp 表征器件瞬态冲击吸收能力，应按厂商数据手册的测试波形（见说明）理解其极限。
四、封装与机械特性
SMB（DO-214AA）封装具备良好的散热路径和适合自动贴装的尺寸。建议在 PCB 布局中将 TVS 尽量靠近被保护点放置，走线短且截面积大，以降低寄生电感，提高响应速度与钳位效率。产品常以卷带（Tape & Reel）形式供货（型号尾缀 TR 指示包装方式）。
五、典型应用场景
- 电源线路与电源模块浪涌保护
- 电信/数据接口保护（尤其需双向钳位的信号线）
- 工控、仪器仪表及车载电子（需关注温度与浪涌重复性要求）
- 工业环境中对雷击、开关瞬变的防护
六、安装与注意事项
- 仅用于瞬态抑制，不可作为连续电压稳压器使用；长期工作于高平均功率下会导致失效。
- 布线要短、粗、低电感；必要时并联低阻抗路径改善散热。
- 注意焊接工艺与回流曲线，避免过热破坏结晶或引脚应力。
- 若工作环境有频繁大能量冲击，应考虑并联或采用更高功率等级的 TVS 并做热管理设计。
- 参考完整数据手册验证钳位电压与测试条件（例如测试波形、持续时间等），并据此校核系统安全裕度。
七、采购与替代建议
选型时除电气参数外，还应确认工作温度、封装兼容性与供应包装（散装/卷带）。如需更高功率或不同钳位值，可在 SMBJ 系列或更大功率封装中选择。采购前建议索取 Brightking 官方数据手册以获得详尽测试条件与可靠性数据。
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