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KUU SMAJ58A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU SMAJ58A
- Type
- KUU
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- SMAJ58A
- Electronic Component
- 1
- Package
- DO-214AC
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.103g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Electronic Component
- BM0264873489
- Operating Temperature
- 55℃~+150℃
- Voltage
- 93.6V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 64.4V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMAJ58A 产品概述
一、产品简介
SMAJ58A 是一款单向 TVS（瞬态电压抑制器）二极管，采用 DO-214AC（SMA）塑料封装，芯片为玻璃钝化结结构（玻璃钝化工艺），品牌 KUU。器件专为抑制浪涌与脉冲过电压设计，适用于直流供电线和信号通路的瞬态保护，工作温度范围 -55℃ 到 +150℃，可承受高温回流焊 265℃/10s。
二、主要参数
- 极性：单向
- 反向稳态电压 Vrwm：58 V
- 击穿电压 VBR（典型）：64.4 V
- 钳位电压（Ipp 条件下）：93.6 V
- 峰值脉冲电流 Ipp（10/1000μs）：4.3 A
- 峰值脉冲功率 Ppp（10/1000μs）：400 W
- 反向漏电流 Ir：约 1 μA（典型在 13 V 以上）
- 通道数：单路
- 工作温度：-55℃ ～ +150℃
- 封装：DO-214AC（SMA）
三、结构与关键特性
- 玻璃钝化芯片结：提高长期稳定性与耐久性，改善泄漏特性。
- 低齐纳阻抗：在能量注入时实现更低钳位电压，保护被保护设备免受高电压冲击。
- 快速响应：TVS 器件对瞬态的响应非常迅速，典型从 0V 到最低击穿电压的响应在纳秒级；（原始资料中出现“1.0 ps”的表述应为笔误，实际为亚纳秒或纳秒级响应）。
- 高能量吸收能力：在 10/1000μs 波形下可提供 400W 峰值脉冲功率，适合工业级浪涌事件的缓解。
四、典型应用场景
- 开关电源、DC 电源输入保护
- 通信设备与接口保护（以直流或单向保护需求为主）
- 工业控制、电机驱动系统的浪涌抑制
- 消费电子及配电板的过压保护
注：如需汽车级使用，请确认器件是否满足 AEC-Q 等级与温度/可靠性规范。
五、布局与使用注意事项
- 尽量靠近被保护端口或连接器安放 TVS，保持导线/走线最短以降低串联电感。
- 对于重复脉冲或高能量场合，考虑并联/并用更大能量等级器件或配合熔断器、限流元件共同保护。
- 注意钳位电压与系统允许电压的匹配，若系统工作电压接近 Vrwm，需选用更高 standoff 电压型号以避免误触发。
- 焊接与热循环应遵循厂商推荐的回流工艺（示例：265℃/10s 保证焊接可靠性）。
六、选型建议
- 若系统峰值工作电压接近 58 V，应选择更高 Vrwm 的型号以增加余量。
- 需双向抑制时选择双向 TVS 型号；需更高电流/能量时选用更高 Ppp/Ipp 等级或并联方案。
- 在关键或车规场合，优先选择通过相应认证（如 AEC-Q）的器件或咨询厂商提供的可靠性数据。
如需该型号的原理图符号、PCB 封装库文件或与其它型号的对比替代建议，我可以根据具体应用场景帮您进一步核算与推荐。
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