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Brightking SMAJ70A/TR13 SMAJ70A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMAJ70A / TR13
- Type
- BRIGHTKING
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Brightking
- Electronic Component
- SMAJ70A/TR13
- Electronic Component
- 1
- Package
- SMA
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.124g
- Electronic Component
- 1
- Electronic Component
- BM0257689061
- Operating Temperature
- 65℃~+150℃
- Voltage
- 113V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 77.8V
- 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.
SMAJ70A/TR13 产品概述
一、基本参数
SMAJ70A/TR13 为单向（单极性）瞬态抑制二极管（TVS），由台湾君耀（Brightking）生产，常见封装为SMA（表面贴装，常见封装形式为 DO‑214AA）。主要电气参数如下：额定反向截止电压 Vrwm = 70V；典型击穿电压 = 77.8V；钳位电压 Vc ≈ 113V（在指定脉冲条件下）；峰值脉冲电流 Ipp = 3.5A；峰值脉冲功率 Ppp = 400W；反向漏电流 Ir = 1µA（常温）；工作温度范围 -65℃ ～ +150℃。后缀 TR13 表示带卷包装（Tape & Reel），便于贴片机自动贴装。
二、产品特点
- 抗浪涌能力与高钳位性能兼顾：在短时脉冲冲击下可提供高达400W 的能量吸收能力，典型钳位电压 113V 可有效限制过电压幅值。
- 低漏电流：常温下反向电流仅约 1µA，适合对静态功耗敏感的系统。
- 宽工作温度：-65℃ 到 +150℃ 的耐温范围，适应工业级及严苛环境。
- SMA 封装体积小、散热良好，适合表面贴装工艺；TR13 带卷包装便于高速贴装生产。
三、典型应用场景
- 工业电源与控制设备的输入侧浪涌保护；
- 通信设备、基站电源与PoE 端口的过电压钳位；
- 汽车电子子系统（需核实车规认证条件）和电机驱动的瞬态抑制；
- 电源适配器、逆变器及工业控制柜等需要对抗雷击或开关瞬变的场合。
四、使用与选型建议
- 选型时以系统正常工作电压低于 Vrwm（70V）为前提，确保在额定反向截止电压下不触发导通。
- 注意脉冲参数：Ppp 与 Ipp 的标称值通常基于特定脉冲波形，实际应用需参考厂商数据表中脉冲波形（如 10/1000µs 或 8/20µs）以确认保护能力；必要时采用并联或更高规格器件以满足更大浪涌能量。
- 布局注意事项：将 TVS 靠近受保护元件或接口放置，走线尽量短且粗，减小寄生电感；并配合合适的熔断器或限流元件以提高整机可靠性。
- 环境与可靠性：若用于苛刻振动或车规场合，请向供应商确认相关认证与寿命测试结果。
五、包装与生产支持
SMAJ70A/TR13 提供带卷（TR）包装，适合自动贴装生产，便于高速 SMT 工艺。购买时建议从正规渠道索取规格书和器件样品进行工程验证，并在批量导入前完成浪涌测试与环境老化验证。
总结：SMAJ70A/TR13 是一款针对中等能量瞬态（400W 峰值、3.5A 峰值电流）保护的单向 TVS 二极管，兼具低漏电、高耐温与易装配特性，适用于工业、通信及一般电源保护场合。使用前请依据详细数据表核对脉冲测试条件与实际系统需求。
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