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MDD SMBJ58CA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MDD SMBJ58CA
- Type
- MDD
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MDD
- Electronic Component
- SMBJ58CA
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.224g
- Electronic Component
- 1
- Electronic Component
- BM0229265241
- Operating Temperature
- 65℃~+150℃
- Voltage
- 93.6V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 71.2V
- 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.
SMBJ58CA 产品概述
一、产品简介
SMBJ58CA 为 MDD 品牌的双向 TVS（瞬态电压抑制）二极管，封装为 SMB（DO-214AA）。该器件针对瞬态浪涌和电气过压冲击提供快速钳位保护，常用于电源总线、通信接口和工业设备的浪涌抑制。器件工作稳定，适用于需要 48V 级别保护的场景。
二、主要电气参数
- 极性：双向（Bi-directional）
- 反向截止电压 Vrwm：58 V
- 钳位电压 Vc：93.6 V（对应额定脉冲测试条件）
- 峰值脉冲电流 Ipp：6.5 A（10/1000 μs 浪涌波形）
- 峰值脉冲功率 Ppp：600 W（10/1000 μs）
- 击穿电压 Vbr：71.2 V
- 反向漏电流 Ir：1 μA（在 Vrwm 条件下典型值）
- 工作温度范围：-65 ℃ ～ +150 ℃
- 类型：TVS 二极管
- 封装：SMB（DO-214AA）
- 品牌：MDD
三、关键特性与优势
- 双向结构：对正负方向的瞬态电压均能提供对称钳位，适用于交流线路或双向信号线保护。
- 高能量吸收能力：在 10/1000 μs 浪涌条件下可承受 600W 峰值功率与 6.5A 峰值电流，能有效抑制雷击或开关瞬变能量。
- 低漏电流：典型反向电流仅 1 μA，有利于低功耗系统长期在线保护而不显著增加静态功耗。
- 宽温工作范围：适应工业级及恶劣环境下的长期可靠工作。
四、典型应用场景
- 电信与配电系统中 48V 直流总线保护（如 PoE、通信基站辅助电源）
- 工业控制设备和传感器接口的浪涌抑制
- 电机驱动与继电器线圈切换产生的反向浪涌保护
- 交流/双向电源线路及双向信号（CAN、RS485 等）保护
- 工程项目中对雷击与开关暂态有较高能量吸收要求的场合
五、封装与安装建议
- 封装为 SMB（DO-214AA），适合表面贴装工艺（SMT）或波峰焊后回流。布局时应尽量靠近被保护端口或连接器，缩短走线以降低吸收回路寄生电感。
- 双向 TVS 通常无极性标记或两端对称，安装时注意与 PCB 地（或电源参考）形成合适的回流路径。
- 为保证长期可靠性，应留意焊接温度曲线不超过厂商推荐的回流规范，并在高能量环境下考虑散热与热阻管理。
六、选型与使用注意
- 若保护对象为直流单向负载（仅正向过压），可优先考虑单向 TVS 以获得更低的钳位电压；但若线路存在双向过压风险，则 SMBJ58CA 为合适选择。
- 钳位电压 93.6V 为典型值，实际钳位受浪涌电流和温度影响，设计时应留有裕量以保护后端器件。
- 长期承受频繁大能量脉冲会降低元件寿命，重要场合应结合熔断器、限流器或多级保护策略。
- 在需要满足特定浪涌标准（如 IEC 61000-4-5）时，请依据系统波形与能量级别确认是否满足认证要求。
如需样片、器件曲线（VI 曲线、钳位特性曲线）或封装尺寸图（PCB footprint），可提供进一步资料以便于设计与评估。
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