Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
ST SMAJ18A-TR SMAJ18A
Configuration
1 options
Configuration
Date code within 2 years
Availability on request
Technical data
Product details
20
specifications
Core information
- Product name
- ST(STMicroelectronics) SMAJ18A-TR
- Type
- ST
- Unit
- Electronic Component
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- ST(STMicroelectronics)
- Electronic Component
- SMAJ18A-TR
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.13g
- Electronic Component
- 1
- Electronic Component
- BM0001379353
- Operating Temperature
- 55℃~+150℃
- Voltage
- 39.3V
- Electronic Component
- IEC 61000-4-5；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.
SMAJ18A-TR 产品概述
简介
SMAJ18A-TR 是一款高效的瞬态抑制二极管（TVS二极管），由意法半导体（STMicroelectronics）生产。该器件专为电压瞬变保护而设计，能够在脉冲事件发生时，快速响应并限制电压，以保护敏感电子元器件。这使得它在各种电源和信号线路的保护应用中非常适用。
基础参数
- 类型: 齐纳二极管
- 单向通道: 1
- 反向断态电压 (Vr): 典型值为18V，确保在正常工作范围内时不会被击穿。
- 击穿电压 (Vbr): 最小值为20V，能够有效防止过压情况的发生。
- 最大箝位电压 (Vcl): 在不同的脉冲电流 (Ipp) 条件下，最大箝位电压为39.3V，体现了该器件在保护后的电压高效控制能力。
- 峰值脉冲电流 (Ipp): 该器件能够承受高达59A的峰值脉冲电流（在10/1000μs 的脉冲条件下）。
- 峰值脉冲功率 (Ppp): 此款产品能承受的最大脉冲功率为400W，适用于承载高强度瞬态事件。
- 电源线路保护: 无内置电源线路保护功能，需在系统内结合其他保护元件使用。
应用场景
SMAJ18A-TR 主要应用于需要瞬态电压瞬间抑制的电路中，适合各种电源和信号线路保护，包括但不限于：
- 通信设备
- 消费电子
- 汽车电子
- 计算机和周边设备
- 工业控制系统
这种广泛的适用性使得该器件在保护电路中扮演了重要角色，尤其在今日电路设计中，瞬态电压保护的必要性日益凸显，确保电路可靠性和稳定性是设计的关键。
物理特性
- 工作温度范围: -55°C 到 150°C，适应各种环境条件，确保在极端条件下的可靠性。
- 封装类型: 该器件采用 DO-214AC (SMA) 表面贴装型封装，便于集成和小型化设计，提高生产效率和降低制造成本。
结论
SMAJ18A-TR 是一款集高峰值功率处理能力与广泛应用场景于一体的高性能 TVS 二极管。凭借其出色的电气特性、广泛的工作温度范围以及便于表面贴装的封装设计，适合用作多种电子设备的瞬态保护解决方案。选用 SMAJ18A-TR 可以有效提升电路的稳定性与耐用性，降低因瞬态电压引发的损伤风险，是现代电子设计中不可或缺的元件之一。
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