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MDD SMBJ15A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MDD SMBJ15A
- Type
- MDD
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MDD
- Electronic Component
- SMBJ15A
- Electronic Component
- 1
- Package
- DO-214AA(SMB)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.224g
- Electronic Component
- 1
- Electronic Component
- BM0230826883
- Operating Temperature
- 65℃~+150℃
- Voltage
- 24.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 18.5V
- 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.
SMBJ15A（15V）TVS二极管产品概述
一、产品简介
SMBJ15A 为单向瞬态电压抑制（TVS）二极管，封装为 DO-214AA（SMB），由 MDD 品牌出品。器件在直流工作电压 15V 条件下具备快速钳位能力，适用于车载、电源和工业控制等需抑制雷击、感性回路反向脉冲或开关瞬变的场合。
二、主要电气参数
- 极性：单向
- 反向工作电压 Vrwm：15V
- 击穿电压（典型）：18.5V
- 钳位电压 Vc（典型）：24.4V（Ipp 标称条件）
- 峰值脉冲电流 Ipp：24.6A（10/1000µs 波形）
- 峰值脉冲功率 Ppp：600W（10/1000µs）
- 反向漏电流 Ir：1µA（在 Vrwm 条件下）
- 工作温度范围：-65℃ 至 +150℃
以上参数反映器件在行业标准 10/1000µs 浪涌下的抑制能力，适用于慢上升时间、高能量脉冲场合。
三、典型应用
- 汽车供电系统的瞬态抑制（电磁干扰、负载开关瞬态）
- 开关电源、基站电源和工业电源的输入端保护
- 数据线、通信接口及继电器线圈的浪涌吸收
- 太阳能逆变器、变频器等含大能量瞬变的装置
四、选型与应用注意事项
- 若系统工作电压接近或高于 15V，应选高一点的 Vrwm 等级以避免常态触发。
- 钳位电压为工作脉冲时的最大允许电压，设计时需保证被保护电路在钳位电压下仍能耐受。
- 对于更短脉冲（如 8/20µs）或更快上升沿，应检查对应波形下的 Ipp 与 Vc 数据表。
- 热阻与 PCB 散热路径对重复冲击能力影响显著，建议在器件两侧加宽铜箔并靠近接地网络布线。
五、封装与焊接建议
SMB（DO-214AA）为表面贴装封装，便于自动贴装和回流焊接。焊接时遵循回流曲线，避免过高温度或长时间加热以保护器件。储存和使用时注意防潮等级，贴装后保证良好焊点和可靠的散热路径。
六、可靠性与测试
本型号在 -65℃ 至 +150℃ 范围内工作，适合工业与车规级温度环境。量产前建议进行实际系统级浪涌测试（包括 10/1000µs 和 8/20µs）以及热循环、机械振动和焊接应力验证，确保在目标应用中的长期可靠性。
总结：SMBJ15A 提供了在 15V 等级系统中高能量瞬态吸收能力与低漏电的平衡，适用于多种需要高能量抑制的应用场景。选型时结合实际浪涌波形、系统耐压与散热条件可获得最佳保护效果。
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