WMSIC Electronic Components

TWGMC SMAJ16CA Bidirectional TVS Diode SMAJ16CA

ModelSMAJ16CA
PackageSMA
BrandTWGMC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TWGMC SMAJ16CA
Type
TWGMC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
SMAJ16CA
Electronic Component
1
Package
SMA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.097g
Electronic Component
1
Electronic Component
BM0226538428
Operating Temperature
65℃~+150℃
Voltage
26V
Current(Ir)
1uA
Voltage(VBR)
19.7V
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.

SMAJ16CA — TVS 晶体管(SMA / DO‑214AC)产品概述

一、简介

SMAJ16CA 是 TWGMC(台湾迪嘉)出品的一款双向瞬态电压抑制器(TVS),封装为 SMA(DO‑214AC),用于吸收静电放电(ESD)与浪涌能量,保护敏感电路免受过压击穿。器件设计注重工业级宽温范围和高脉冲功率承受能力,适合多类电气界面与电源总线的防护。

二、主要参数

  • 类型:双向 TVS(双极性)
  • 反向截止电压 Vrwm:16 V
  • 击穿电压 Vbr(典型):19.7 V
  • 钳位电压 Vc(典型):26 V(对应脉冲条件)
  • 峰值脉冲功率 Ppp:400 W @ 10/1000 μs 波形
  • 峰值脉冲电流 Ipp:15.4 A @ 10/1000 μs
  • 反向漏电流 Ir:1 μA(在 Vrwm 条件下)
  • 工作温度范围:-65 ℃ 至 +150 ℃
  • 封装:SMA(DO‑214AC)表面贴装

三、核心特性

  • 高能量吸收:10/1000 μs 条件下 400 W 峰值功率,能有效抑制工业浪涌与雷击感应脉冲。
  • 低钳位:典型钳位电压 26 V,有利于在过压瞬态时限制被保护节点的电压幅度。
  • 宽温稳定性:-65 ℃ 至 +150 ℃ 的工作温度,适应严苛环境与长期运行。
  • 低漏电流:1 μA 级别,有利于不增加系统静态功耗,适合低功耗应用。
  • 双向结构:对称抑制正负向瞬态,适用于交流或具有反向瞬态风险的信号/电源线。

四、典型应用场景

  • 电源总线浪涌保护(如 12–16 V 直流系统的保护)
  • 通信接口及数据线防护(如以太网、串口、工业现场总线)
  • 工业控制、PLC、驱动器输入端浪涌抑制
  • 电池管理、充电器与适配器的过压保护(需按实际工作电压选型)
  • 汽车外围电子与车载设备(使用前请确认是否满足汽车级认证要求)

五、选型与 PCB 布局建议

  • 选型原则:Vrwm 应高于系统最大工作电压,通常留有安全裕量;若电路为交流或可能出现正负瞬态,优先选用双向型号。
  • 布局要点:器件应尽量靠近被保护引脚或连接点,布线尽量短且宽,围绕 TVS 的回流路径保持最短,以降低寄生电感。若需散热,可在底部焊盘附近设计散热铜箔与通孔。
  • 串联保护:对于特别苛刻的浪涌环境,可与熔断器、限流电阻或压敏电阻组合使用,形成多级保护。

六、储存与可靠性注意事项

  • 建议遵循制造商的回流焊温度曲线与 ESD 操作规范。
  • 长期储存时避免高温高湿,出厂封装若为防潮袋,请按干燥箱或回流前烘烤建议处理。
  • 在高脉冲场景中,反复承受接近额定能量的冲击可能影响器件寿命,设计时应考虑裕量与冗余保护策略。

总结:SMAJ16CA 提供了良好的能量吸收能力和宽温适应性,适合用于要求可靠浪涌与静电防护的工业与电子设备。在实际应用中,请结合系统工作电压、环境条件与制造商典型特性曲线进行最终确认与验证。若需更详细的电气特性曲线、封装尺寸或可靠性认证信息,建议参考 TWGMC 提供的完整数据手册。

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