WMSIC Electronic Components

BORN SMDJ28CA

ModelSMDJ28CA
PackageSMC(DO-214AB)
BrandBORN
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
BORN SMDJ28CA
Type
BORN
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
SMDJ28CA
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.376g
Electronic Component
1
Electronic Component
BM0230041452
Operating Temperature
55℃~+150℃
Voltage
45.4V
Current(Ir)
2uA
Voltage(VBR)
31.1V
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.

SMDJ28CA 产品概述

一、产品概述

SMDJ28CA 是 BORN(伯恩半导体)推出的一款双向瞬态电压抑制(TVS)二极管,采用 SMC(DO-214AB)封装,面向需抗冲击、雷击和电涌保护的电源与信号线保护场景。该器件在大电流脉冲下能迅速钳位电压,保护后端敏感电子元件不受瞬态过电压损害,适用于工业、电信、电源和汽车等领域。

二、主要技术参数

  • 类型:双向 TVS
  • 反向截止电压 Vrwm:28 V
  • 击穿电压(Vbr):31.1 V
  • 钳位电压(Vc)@ Ipp:45.4 V
  • 峰值脉冲电流 Ipp:66.1 A(10/1000 µs 浪涌)
  • 峰值脉冲功率 Ppp:3 kW(10/1000 µs)
  • 反向电流 Ir:2 µA(在 Vrwm 条件下)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:SMC (DO-214AB)
  • 品牌:BORN(伯恩半导体)
  • 描述:未分类

三、关键特性说明

  • 双向结构:可同时吸收正向和反向脉冲,适合交流或双向对地的浪涌保护场合,无需区分极性安装方向。
  • 高能量处理能力:3 kW(10/1000 µs)脉冲功率与 66.1 A 峰值脉冲电流,能应对典型雷击和电源浪涌事件。
  • 低静态泄漏:2 µA 的反向电流在额定电压下有助于降低待机功耗和热损耗。
  • 宽温度范围:-55 ℃ 至 +150 ℃ 满足工业级与部分严苛环境应用需求。
  • SMC 大封装:良好的散热性能和机械强度,适合印刷焊接和较大电流承载。

四、典型应用场景

  • 工业电源输入端浪涌保护
  • 通信设备的外部接口防护(如以太网、串口电源线)
  • 开关电源与逆变器的输入/输出防雷保护
  • 汽车电子(需验证规格及车型适配)
  • 配电柜、楼宇自控系统等抗雷击、抗浪涌场合

五、封装与可靠性建议

SMC(DO-214AB)封装提供较大的焊盘面积和散热路径,推荐在 PCB 设计中为器件提供短且宽的铜箔回流路径以增强散热。为提高可靠性,可在器件附近保留热隔离区域并避免紧靠高温器件布置。出厂和焊接时遵循制造商的回流曲线以防止热损伤。

六、设计与使用建议

  • 布局:将 TVS 尽量靠近需要保护的接口或输入端,尽量缩短与受保护节点之间的走线长度。
  • 考虑冗余:对于多次或极端冲击环境,可并联或分段保护器件与浪涌抑制器配合使用,但并联需注意电流分配问题。
  • 热管理:在高频繁冲击场景下关注器件温升与热滞留,必要时增加散热铜箔或散热片。
  • 测试条件:Ppp 与 Ipp 基于 10/1000 µs 波形定义,实际保护能力依赖于脉冲波形与系统阻抗,应在目标系统中进行验证。
  • 极性注意:双向器件无需极性区分,但在设计原理图与封装方向标注上仍应明确,以便生产贴装无误。

七、注意事项

  • 本参数基于标准测试条件,实际应用中受系统阻抗、环境温度、冲击波形等影响,建议进行现场或板级验证。
  • 若用于汽车或安全关键系统,应参考相关行业认证与长周期可靠性测试要求。
  • 储存与焊接应遵循防潮、防静电和制造商推荐的工艺规范。

SMDJ28CA 以其高能量吸收能力、低泄漏和宽温度特性,适合多种需要可靠浪涌保护的工业与通信场合。在选型与设计时,请结合实际浪涌水平与系统热设计进行验证以确保长期稳定运行。

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