WMSIC Electronic Components

DOWO 5.0SMDJ16CA

Model5.0SMDJ16CA
PackageSMC(DO-214AB)
BrandDOWO
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO 5.0SMDJ16CA
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
5.0SMDJ16CA
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.042g
Electronic Component
1
Electronic Component
BM0257416010
Operating Temperature
55℃~+150℃
Voltage
26V
Current(Ir)
50uA
Voltage(VBR)
17.8V
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.

5.0SMDJ16CA 产品概述

5.0SMDJ16CA 是 DOWO(东沃)出品的一款双向瞬态电压抑制(TVS)二极管,封装为 SMC(DO‑214AB)。该器件专为高能量瞬态脉冲保护设计,能够在瞬时过电压或雷击/开关浪涌事件中快速钳位,保护下游敏感电子元件。它适用于汽车、工业控制、电源接口、通信和其他需要高能量冲击保护的场景。

一、电气参数要点

  • 类型:瞬态抑制二极管(TVS),双向(Bidirectional)
  • 额定反向工作电压 Vrwm:16 V
  • 击穿电压(典型):17.8 V
  • 钳位电压 Vc(在额定脉冲电流下):26 V
  • 峰值脉冲电流 Ipp:192.3 A(通常基于 10/1000 µs 波形)
  • 峰值脉冲功率 Ppp:5 kW @ 10/1000 µs
  • 反向漏电流 Ir:50 µA(在 Vrwm 条件下)
  • 工作温度范围:-55 ℃ 至 +150 ℃

这些参数表明该器件在 10/1000 µs 波形下能够吸收大能量冲击并将电压钳制在 26 V 左右,适合处理高能量的脉冲事件(例如雷击后的后续脉冲或工业开关产生的浪涌)。

二、封装与热性能

5.0SMDJ16CA 使用 SMC(DO‑214AB)表面贴装封装,体积适中,便于自动贴片与回流焊工艺。SMC 封装具有较大的铜焊盘面积和导热路径,有利于在脉冲事件中将热量传导到 PCB,降低器件结温上升速度。设计 PCB 时应考虑宽敞的焊盘和热扩散铜层以增强散热能力,必要时可增加底层散热过孔或铜箔面积。

三、典型应用场景

  • 汽车电子:车载电源、车灯控制模块、ECU 输入保护(尤其适合 12 V 系统的瞬态浪涌防护)
  • 工业控制:开关电源输入、马达控制器、电磁阀驱动等受开关瞬态影响的节点
  • 通信设备:电源线、线路接口(VoIP、DSL 前端)过压保护
  • 消费电子与电源模块:外围电源防护、接口防护、UPS 与逆变器的输入端

四、产品特点与优势

  • 高能量能力:5 kW @ 10/1000 µs 的吸收能力,适合高能脉冲环境
  • 双向保护:对正负极脉冲均能有效抑制,便于交流或双向过压场景使用
  • 低反向漏电:50 µA 的漏电限值,有利于降低待机损耗
  • 宽温度范围:-55 ℃ 至 +150 ℃,适合严苛环境与高温工况
  • 可靠封装:SMC 封装利于自动化组装和稳健的热处理

五、选型与设计建议

  • 工作电压匹配:将器件的 Vrwm(16 V)与电路额定工作电压比较。对于典型 12 V 汽车系统或 12 V 直流应用,Vrwm=16 V 是常见且合适的选择;若电路长期在高于 Vrwm 的偏压下工作,应改选更高 Vrwm 的规格。
  • 安全裕度:在设计中保持钳位电压(26 V)对下游设备的耐压裕量,确认被保护器件能承受钳位时的短时电压。
  • 脉冲重复与能量分配:虽然单次 10/1000 µs 脉冲可被吸收,但重复脉冲或高频次冲击会导致器件热累积。对可能连续冲击的场合,建议增加串联阻抗(如熔断器、限流电阻)或采用多个保护器件分担能量。
  • 单向 vs 双向:若电路仅存在单极性直流突波,可考虑单向 TVS 获取更低的钳位电压与更小的漏电;若存在反向或交流脉冲,双向器件为更稳妥选择。
  • PCB 布局:缩短保护器件与需要保护元件之间的连线,增大焊盘与散热铜箔;必要时设置隔离与熔断保护,避免器件热失控。

六、存储与可靠性提示

  • 推荐按照制造商标准的 ESD 与防潮要求存放与回流焊处理;SMC 封装兼容常规回流曲线,但请参考供应商的焊接资料以确认焊接峰值温度与回流次数限制。
  • 在高温或高湿环境中,注意长期漏电和热循环对参数漂移的影响,必要时进行加速寿命测试验证方案可靠性。

总结:5.0SMDJ16CA(DOWO)是一款面向高能量瞬态保护的双向 TVS 二极管,凭借 5 kW 的 10/1000 µs 吸收能力、较低的钳位电压(26 V)和宽温度适应范围,适合汽车与工业等严苛环境中的浪涌防护。选择与布局时应综合考虑工作电压、钳位裕度、能量分配与热管理,以确保长期稳定保护效果。

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