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BORN SMAJ16A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BORN SMAJ16A
- Type
- BORN
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BORN
- Electronic Component
- SMAJ16A
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.104g
- Electronic Component
- 1
- Electronic Component
- BM0258858718
- Voltage
- 26V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 19.7V
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMAJ16A TVS瞬态抑制二极管 产品概述
一、产品简介
SMAJ16A 是一款单向（极性：单向）瞬态电压抑制二极管（TVS），用于对静电放电（ESD）和电源/信号线浪涌进行快速钳位保护。该器件由 BORN（伯恩半导体）生产，采用常见的 SMA 封装（DO-214AC），易于在自动贴片与波峰/回流焊装配线上应用。器件设计用于在瞬态脉冲出现时快速导通，将过电压能量旁路至地，从而保护下游敏感元件。
二、主要性能参数
SMAJ16A 的主要电气特性包括：
- 反向截止电压（Vrwm）：16 V（稳压工作电压/待机电压）
- 钳位电压：26 V（在指定脉冲条件下的最大钳位）
- 峰值脉冲电流（Ipp）：15.4 A @ 10/1000 μs
- 峰值脉冲功率（Ppp）：400 W @ 10/1000 μs
- 击穿电压（Vbr）：19.7 V（典型）
- 反向漏电流（Ir）：1 μA（在 Vrwm 下）
- 类型：TVS（瞬态抑制二极管），极性：单向
以上参数表明该器件适合保护中低电压直流总线及信号线，能够吸收较大能量的浪涌事件并在工作电压下保持极低漏电。
三、典型应用场景
SMAJ16A 适用于电源线与数据线的瞬态保护场合，典型应用包括：
- 通信设备、电源模块的输入端浪涌保护；
- 工业控制与汽车电子（非高压汽车总线）中对传感器与继电器驱动电路的保护；
- 消费类电子（路由器、机顶盒、充电器）对外部端口的 ESD/浪涌防护；
- PCB 上做为前端防护元件，保护后级稳压器与敏感芯片免受脉冲损伤。
四、封装与可靠性
SMA（DO-214AC）封装具有良好的热耗散能力与机械强度，便于手工或自动化装配。BORN 的工艺使器件在重复浪涌与高温回流下保持稳定性能。典型的 PCB 布局应保证接地回路短且粗，以便快速将能量导入地平面，改善钳位效果并降低自感延迟。
五、选型与使用建议
- 若系统工作电压接近 Vrwm（16 V），需留有余量，避免频繁触发；可根据最大预期浪涌选择更高 Vrwm 的型号；
- 钳位电压 26 V 是在 10/1000 μs 条件下的典型值，若系统对瞬态峰值敏感，应验证真实脉冲条件下的钳位表现；
- 布局建议将 TVS 尽可能靠近保护对象或接口，并配合适当的熔断或串联元件以限制电流回路；
- 对于双向或交流线路，应选用对应的双向 TVS 器件，SMAJ16A 为单向类型，不适合直接用于交流线路保护。
总结：SMAJ16A 以其 16 V 的待机电压、26 V 的有效钳位及 400 W 的能量处理能力，为多种中低压电路提供了成本效益高且可靠的瞬态保护方案。
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