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Littelfuse SMBJ70A
Configuration
1 options
Configuration
23+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse SMBJ70A
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- SMBJ70A
- Electronic Component
- 1
- Package
- DO-214AA
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.202g
- Electronic Component
- 1
- Electronic Component
- BM0000286334
- Operating Temperature
- 65℃~+150℃
- Voltage
- 113V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-2
- Current(Ir)
- 1uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
产品概述：SMBJ70A 瞬态抑制二极管
1. 概述
SMBJ70A 是 Littelfuse（美国力特）公司推出的一款表面贴装型瞬态抑制二极管（TVS），属于 SMBJ 系列，专为电压瞬变保护应用而设计。该元器件有效地保护各种电子电路不受到瞬时过电压和雷击等瞬态事件的毁坏，尤其适用于需求严苛的电源管理和信号线路保护领域。
2. 主要特性
- 极性：SMBJ70A 是单向（Unidirectional）瞬态抑制二极管，能够在反向电压下有效工作，确保对非对称波形的良好保护。
- 峰值脉冲电流：其峰值脉冲电流的承受能力为 5.3A（10/1000µs），能够在瞬态条件下承受强烈的电流冲击，保护下游敏感器件。
- 箝位电压：在瞬态脉冲发生时，SMBJ70A 的箝位电压最大为 113V，这表明在高电压脉冲作用下，二极管能够有效限制电压，防止电路受到损伤。
- 击穿电压（最小值）：65V，确保在设计电路时，可以放心的使用该元器件以防止过压。
- 反向关断电压：典型值为 70V，保证了在正常操作条件下二极管不会对电路产生负面影响。
- 功率特性：该二极管的峰值脉冲功率可达到 600W，适合高能量的瞬态事件保护。
3. 应用场景
SMBJ70A 适用于多种应用环境，尤其在以下领域表现优秀：
- 电源线路保护：为绝大部分电子设备提供过压保护，防止瞬态电压对电源模块造成损害。
- 通信设备：在通信设备中用于保护信号线，避免由于雷击和静电放电（ESD）造成的损害。
- 汽车电子：在汽车电路中保证对电气元件的安全防护，是汽车电子产品（如ECU、车载导航）的重要组成部分。
- 消费电子：提高家用电器、移动设备等消费类电子产品的安全性和可靠性。
4. 规格及封装
- 工作温度范围：-65°C ~ 150°C，适应多种环境条件。
- 安装类型：SMBJ70A 采用表面贴装型（SMD）设计，便于在自动化生产线上的快速安装，提高生产效率。
- 封装形式：DO-214AA（SMB），体积小巧，适合于空间受限的应用配置。
5. 可靠性与稳定性
Littelfuse 的产品在业内享有良好的声誉，SMBJ70A 在多项标准测试中展现出优异的稳定性和可靠性，为直接集成于电路板提供了强有力的保护。设计时可以将SMBJ70A 纳入其保护策略中，从而确保高系统可用性和耐用性。
6. 总结
SMBJ70A 瞬态抑制二极管凭借其强大的电流承受能力、合适的击穿电压和高效的保护性能，成为了现代电路保护方案中的不可或缺的组件。无论是在通信、消费电子还是汽车电子领域，这种高效能的保护器件都能够提供重要的安全保障，从而延长设备的使用寿命和提高整体性能。选择 SMBJ70A，确保您的电路系统在瞬态事件下的安全与稳定。
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