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YANGJIE SMAJ58A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
13
specifications
Core information
- Product name
- YANGJIE SMAJ58A
- Type
- DO-214AC(SMA)
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YANGJIE
- Electronic Component
- SMAJ58A
- Electronic Component
- 1
- Package
- DO-214AC(SMA)
- Electronic Component
- 0.127g
- Electronic Component
- 1
- Electronic Component
- BM0230005018
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMAJ58A（YANGJIE）TVS器件 — 产品概述
一、产品概述
SMAJ58A 是扬杰（YANGJIE）推出的一款单向瞬态电压抑制（TVS）二极管，封装为 DO-214AC（SMA）。器件针对静电放电（ESD）和浪涌突波提供快速夹位保护，适用于工业电源、通信接口和车载电子等需要对高能瞬态进行钳位的场合。
二、关键参数解读
- 极性：单向（单极性设计，正向导通用于正向浪涌情形）。
- 反向工作电压 Vrwm：58V（推荐工作电压上限，应在此值附近长期稳态使用）。
- 击穿电压（Vbr）：71.2V（典型击穿起始电压）。
- 钳位电压：93.6V（在指定脉冲条件下对浪涌进行钳位的典型电压）。
- 峰值脉冲电流 Ipp：4.27A（测量条件 10/1000μs 波形）。
- 峰值脉冲功率 Ppp：400W（10/1000μs，表示器件对能量脉冲的吸收能力）。
- 反向漏电流 Ir：5 μA（在 Vrwm 条件下的典型漏电）。
三、典型应用场景
- 工业电源和配电防护：用于防止瞬态过电压损坏整机元件。
- 通信设备接口：RJ45、串口、CAN 总线等数据线防护。
- 电子控制单元（ECU）和车载系统：作为对抗大能量浪涌的保护元件（须按车规要求评估）。
- 电源模块、逆变器等高压旁路保护。
四、使用建议与电路接入
- 推荐将 TVS 芯片并联接入被保护线路，单向器件的阴极接正极电源或受保护信号方向。
- 选择 Vrwm 时宜留有裕度：工作电压 ≤ Vrwm，避免长期工作在接近击穿区。
- 对于大能量冲击，建议与熔断器或限流元件配合使用，以防止器件在多次大冲击下过热失效。
- PCB 布局：走线尽量短且宽，减小寄生电感；热量集中区域可加铜箔散热。
五、封装与可靠性
DO-214AC（SMA）封装利于自动贴装与波峰/回流焊工艺。Ppp 400W（10/1000μs）表示在该脉冲能量下具备较强的一次性吸收能力，长期可靠性取决于实际冲击频率与系统散热设计。
六、选型与注意事项
- 若系统存在更大能量或更快上升沿的冲击（如雷击 8/20μs），应核对器件在对应波形下的 Ipp/Ppp 数据或选择更高规格TVS。
- 留意反向漏电及钳位电压对系统安全边际的影响。
- 在关键应用（车规或医疗）中，建议索取完整数据手册及相关测试报告，并进行实际环境下的验证。
SMAJ58A 以其明确的 Vrwm/钳位/能量吸收指标，适合用于中高压防护场合，合理的布局和配套保护元件可显著提升系统抗浪涌能力。
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