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Littelfuse SMAJ70A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse SMAJ70A
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- SMAJ70A
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.124g
- Electronic Component
- 1
- Electronic Component
- BM0000283789
- 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：SMAJ70A 保护二极管
一、简介
SMAJ70A 是一款由美国力特（Littelfuse）制造的浪涌保护二极管，专为防止电路中的过电压和瞬态电压而设计。它采用表面贴装技术（SMD），封装形式为DO-214AC（SMA），使其在应用中具有优异的可靠性和稳定性，适用于各种电子设备和电路中的过压保护。
二、基本参数
SMAJ70A 的核心技术参数包括：
- 峰值脉冲电流（10/1000µs）： 3.5A，能够有效承受瞬时的电流冲击，保护电路免受过电流带来的损害。
- 箝位电压： 113V，表明在瞬态电压出现时，二极管能够快速且有效地限制电压峰值，从而保护下游电路。
- 击穿电压（最小值）： 77.8V，表示在该电压值下，二极管开始导通，以削减电压至安全水平。
- 反向关断电压（典型值）： 70V，说明该二极管在正常工作条件下可以承受的反向电压。
- 工作温度范围： -65°C 到 150°C，适应各种极端工作环境，保证了在不同温度下的稳定性能。
三、主要特性
单向极性（Unidirectional）： SMAJ70A 是一款单向二极管，专为单向电流设计，适用于直流电路的保护。
高功率峰值脉冲能力： 具有高达400W的峰值脉冲功率，能够有效应对短时的高能量脉冲，极大地提高了电子电路的抗击打能力。
表面贴装型（SMD）： 该器件采用表面贴装技术，便于自动化焊接，同时能够为板级空间的节约提供支持，适合用于各种小型化的电子产品。
广泛的应用范围： SMAJ70A 可广泛应用于电源线路保护、通信设备、消费电子产品、工业控制系统等多个领域。
四、应用场景
SMAJ70A 适用于需要瞬态电压抑制（TVS）的应用，例如：
- 电源电路保护：防止电源瞬态过压对电源管理IC的影响。
- 通信设备：保护信号传输线路中的敏感电子元件，防止过压导致的损坏。
- 汽车电子：在汽车电子设备中，为各种传感器和执行器提供过电压保护。
- 工业设备：确保工业控制系统中的设备能够抵御电压突发，提高系统的稳定性和可靠性。
五、总结
SMAJ70A 浪涌保护二极管凭借其卓越的电压和电流承受能力、优良的温度稳定性以及宽广的应用场景，成为现代电子设备中重要的保护元件。其设计理念旨在为各种电路提供安全、高效的保护解决方案，从而确保电子产品的长期稳定运行。无论是在设计新设备，还是在现有设备的提升改进中，SMAJ70A 都会是一个值得考虑的优质选择。
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