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Brightking SMBJ22A/TR13 SMBJ22A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMBJ22A / TR13
- Type
- BRIGHTKING
- Minimum package
- 3000
Technical parameters
- Electronic Component
- Brightking
- Electronic Component
- SMBJ22A/TR13
- Electronic Component
- 1
- Package
- SMB
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.198g
- Electronic Component
- 1
- Electronic Component
- BM0257694860
- 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.
SMBJ22A/TR13 产品概述
一、产品简介
SMBJ22A/TR13 是台湾君耀（Brightking）出品的一款单向瞬态抑制二极管（TVS），封装为SMB（DO-214AA），以抑制瞬态过压、保护敏感半导体和电子模块为目的。该器件专为需要在22V稳压或24V工作环境中抵御雷击、开关瞬变等脉冲能量的应用而设计，适用于工业电源、通信、汽车电子（非直接车身关键系统）、电池管理与强干扰环境下的保护。
二、主要参数与含义
- 极性：单向（用于直流线路，具有极性要求，反向接入会触发箝位）
- 反向截止电压 Vrwm：22V（最大持续工作电压）
- 击穿电压（Vbr）：24.4V（进入导通的门槛）
- 钳位电压 Vc：35.5V（在峰值脉冲作用下被限制的电压）
- 峰值脉冲电流 Ipp：16.9A（与峰值功率和钳位电压对应，Ipp ≈ Ppp/Vc）
- 峰值脉冲功率 Ppp：600W（在标准脉冲测试条件下器件能承受的瞬时能量能力）
- 反向漏电流 Ir：1µA（在 Vrwm 条件下的典型漏电）
- 封装：SMB，供带卷盘（-TR）贴片装配
三、性能特点
- 高能量吸收：600W 峰值脉冲功率，能有效吸收雷击和开关瞬变注入的能量。
- 低漏电：1µA 等级的反向漏电有利于降低静态功耗，适合对静态电流敏感的系统。
- 钳位性能可靠：35.5V 的钳位电压在保护24V系统时能有效限制过压幅度，减少下游器件应力。
- 封装稳健：SMB 封装适合自动贴片生产，热阻和机械性能在中功率TVS中表现良好。
四、典型应用场景
- 24V 工业控制电源、PLC 接口保护
- 通信设备电源防护（基站、交换设备）
- 电源适配器、充电器输入端瞬态保护
- 车载电子（辅助系统、非关键控制回路）中对开关瞬变的抑制
- 电池管理及逆变器外围保护电路
五、选型与布板建议
- 单向 TVS 适用于直流系统，若保护交流或双向脉冲应选双向型号。
- 将 TVS 尽量靠近被保护端口或接口放置，导线与走线尽量短且粗，减小回路电感以提高钳位效率。
- 对于高能量环境，建议在 TVS 前配合熔断器或限制电阻使用，防止单次脉冲损坏或串联损坏其他器件。
- 布局时保证良好散热路径，SMB 封装需要通过铜箔和地平面导热以便散热。
六、使用与可靠性注意事项
- 在产品设计中根据实际脉冲波形（例如 IEC 8/20µs 或 10/1000µs）评估 TVS 能量吸收能力，必要时留有安全裕量。
- 存储与回流焊注意温度曲线，遵循封装厂商的焊接规范以避免封装失效。
- 频繁、重复的大能量冲击会降低器件寿命，关键场合考虑冗余或更高能量等级的保护方案。
总结：SMBJ22A/TR13 提供了面向22V/24V 系统的高能量瞬态保护能力，钳位性能与低漏电结合，使其成为工业与通信等中高压直流线路的实用防护元件。选型时应结合系统脉冲特性和布局热管理做综合评估。
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