WMSIC Electronic Components

Brightking SMAJ14CA/TR13 SMAJ14CA

ModelSMAJ14CA/TR13
PackageSMA(DO-214AC)
BrandBrightking
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
Brightking SMAJ14CA / TR13
Type
BRIGHTKING
Minimum package
5000

Technical parameters

Electronic Component
Brightking
Electronic Component
SMAJ14CA/TR13
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.122g
Electronic Component
1
Electronic Component
BM0257694879
Operating Temperature
65℃~+150℃
Voltage
23.2V
Current(Ir)
1uA
Voltage(VBR)
17.2V
Electronic Component
5000
Power(Ppp)
400W@10/1000us

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMAJ14CA/TR13 产品概述

一、产品简介

SMAJ14CA/TR13 是台湾君耀(Brightking)推出的一款双向瞬态电压抑制二极管(TVS),采用 SMA(DO‑214AC)封装,专为抑制电源与信号线上的瞬态过压脉冲设计。器件在12V系统保护、工业控制、电源输入与数据通信接口等场景中,能够在瞬时冲击下迅速夹紧电压,保护下游元件免受损坏。该型号具有高峰值脉冲功率、低漏电流和宽工作温度范围,适用于苛刻环境下的防护需求。

二、主要电气参数

  • 极性:双向(Bi‑directional),无需极性区分,能同时抑制正、负向瞬态脉冲。
  • 反向截止电压 Vrwm:14 V(反向稳压/工作电压)。
  • 击穿电压 Vbr:17.2 V(典型),表征进入击穿导通的电压区间。
  • 钳位电压 Vc:23.2 V(在规定脉冲条件下),表明在峰值冲击时被夹紧的最大电压。
  • 峰值脉冲电流 Ipp:17.2 A @ 10/1000 μs。
  • 峰值脉冲功率 Ppp:400 W @ 10/1000 μs(典型测试波形,10/1000 μs)。
  • 反向电流 Ir:≤1 μA(在 Vrwm 条件下,典型值)。
  • 工作温度范围:‑65 ℃ 至 +150 ℃。
  • 封装:SMA(DO‑214AC)。
  • 类型:瞬态电压抑制(TVS)二极管。

以上参数表明该器件可在工业级及汽车级附近电压水平的瞬态保护场合发挥稳定性能(使用时请依据系统具体浪涌能量选择适当的器件并进行热/能量匹配)。

三、主要特性与优势

  • 高能量吸收能力:在标准 10/1000 μs 波形下可承受 400 W 的峰值脉冲功率,适合吸收雷击、开关瞬变等高能量脉冲。
  • 低钳位电压:23.2 V 的钳位电压能有效限制被保护节点电压,提高后续元件的生存率。
  • 低漏电流:在工作电压下漏电流 ≤1 μA,保证正常工作时对电源消耗影响小。
  • 宽温区可靠性:‑65 ℃ 至 +150 ℃ 的工作温度范围,适应恶劣环境与高温场景。
  • 双向抑制:双向结构可用于交流或需双极性保护的信号/电源线,无需区分极性,便于布局。

四、典型应用场景

  • 12 V 车载电源总线的瞬态抑制(需注意是否满足汽车认证要求)。
  • 工业自动化设备与传感器供电线保护。
  • 开关电源(SMPS)输入端的浪涌抑制。
  • 通信与数据接口、串行/并行总线的瞬态保护。
  • 消费类电子产品对抗雷击与开关干扰的外围保护元件。

五、封装与安装建议

  • 封装为 SMA(DO‑214AC),适用于手工焊接或贴片回流工艺。
  • 布局建议:将 TVS 器件尽量靠近被保护的接入端或敏感器件,保持引线最短以降低串联感抗和回路电感。
  • 焊接建议:遵循标准的 SMD 焊接工艺,避免过度热冲击。对于高能量冲击应用,建议在器件周围加大铜箔面积以增强散热。
  • 地线处理:若用于电源线,尽量采用低阻抗、短路径连接到系统地,以提升能量分流与散热能力。

六、可靠性与使用注意

  • 设计裕度:在选择 TVS 时,应根据系统可能出现的最大浪涌电流和能量选型,留有足够安全裕度,避免器件长期在极限条件下工作。
  • 失效模式:若遭受超额能量冲击,TVS 可能发生短路或开路,应在系统设计中配合熔断器或限流保护器件以防次生故障。
  • 温度影响:高温会影响漏电流与寿命,若工作环境长期高温,应考虑器件的热管理与散热措施。
  • 存放与搬运:尽量按常规电子元器件管理,避免潮湿、强震动与静电放电对器件造成损伤。

七、结语与订购信息

SMAJ14CA/TR13 以其 400 W 的峰值脉冲功率、双向保护能力以及在宽温区间的可靠性,为需要在 12 V 类系统中进行高能瞬态抑制的设计提供了经济且实用的解决方案。订购时请注明完整料号(SMAJ14CA/TR13)及所需包装单位,并咨询供应商关于样品测试报告与应用建议,以确保与系统的兼容性。若需更高功率或不同 Vrwm 的型号,建议参照 Brightking 系列产品选择相应规格。

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