WMSIC Electronic Components

BORN 5.0SMDJ22A

Model5.0SMDJ22A
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BORN 5.0SMDJ22A
Type
BORN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
5.0SMDJ22A
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.39g
Electronic Component
1
Electronic Component
BM0264897287
Voltage
35.5V
Current(Ir)
5uA
Voltage(VBR)
24.4V
Electronic Component
Electronic Component
Electronic Component
3000

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

5.0SMDJ22A 产品概述

一、产品简介

5.0SMDJ22A 是 BORN(伯恩半导体)推出的一款单向瞬态电压抑制器(TVS),采用 SMC (DO-214AB) 封装,专为电信、计算机及其他需要高浪涌保护的电子系统设计。器件以玻璃钝化芯片为核心,环氧树脂封装,兼顾高可靠性与经济性,适合 PCB 表面贴装使用。

二、主要电气参数

  • 极性:单向(单向抑制,适用于直流供电与单向浪涌场景)
  • 反向截止电压 Vrwm:22 V(器件在稳态工作条件下的最大允许反向电压)
  • 击穿电压 VBR:24.4 V(典型或测试条件下的击穿电压)
  • 钳位电压(Vc):35.5 V(在峰值脉冲电流下的最大钳位电压)
  • 峰值脉冲电流 Ipp:141 A(器件能承受的单次峰值脉冲电流)
  • 峰值脉冲功率 Ppp:5 kW(器件在规定测试波形下的吸收能量能力)
  • 反向泄漏电流 Ir:5 μA(在 Vrwm 条件下的典型泄漏电流)
  • 类型:瞬态电压抑制器(TVS)
  • 封装:SMC(DO-214AB)
  • 品牌:BORN(伯恩半导体)

注:钳位电压与峰值脉冲电流通常按行业标准浪涌测试条件测得,具体测试波形和条件请参考器件数据手册以获得精确数值。

三、关键特性

  • 优秀的钳位能力:在高能脉冲到达时,能将瞬时电压有效钳制至安全范围,保护下游电路免受过压损害。
  • 低泄漏电流:在正常工作电压下,器件仅有微安级别的泄漏,适合对静态功耗敏感的应用。
  • 低电容:低寄生电容设计对高速信号链或数据线影响小,保证信号完整性。
  • 高浪涌能力:可承受大电流冲击与高峰值功率吸收,适合直流电源线及大功率设备的浪涌保护。
  • 玻璃钝化芯片:提高器件的长期稳定性和耐湿热性能,降低失效风险。
  • 环氧树脂封装:提供机械保护与良好的电绝缘性能,便于表面贴装生产与可靠性控制。

四、典型应用场景

  • 通信设备:基站、交换机、电源模块等需要针对供电与接口进行浪涌抑制的场合。
  • 计算机与服务器:电源输入、外围接口保护,防止雷击或开关浪涌引起的损坏。
  • 工业控制:电源总线、驱动器或现场设备的浪涌防护。
  • 电源适配器与充电设备:对输入侧或输出保护提供额外保障。

五、封装与安装说明

  • 封装形式:SMC(DO-214AB),适合自动贴装与波峰/回流焊工艺。
  • 安装建议:
    • 将 TVS 尽量靠近需保护的输入端子或连接器放置,缩短信号/电源线的未保护部分以提高响应速度和保护效率。
    • PCB 走线应尽量宽短,降低寄生阻抗。对高能量吸收路径宜增加铜厚或并联多条走线以分散热量。
    • 必要时在地线处增加较低阻抗的回流路径和散热通孔,便于能量快速导出与散热。
  • 注意事项:避免在高频敏感线路上并联大容量 TVS 而不做滤波与匹配;重复或连续高能脉冲会降低器件寿命,应按系统峰值与重复频率进行选型与热仿真评估。

六、选型与使用建议

  • 确认系统工作电压:Vrwm(22 V)应高于系统最大稳态电压,保证正常工作不触发泄漏升高或误动作。
  • 余量与保护等级:选择 TVS 时应考虑峰值脉冲电流与实际浪涌能量的裕量,Ppp=5 kW 与 Ipp=141 A 提供强劲的一次浪涌防护,但对高重复冲击或更大能量场景需并联或选用更高等级器件。
  • 温度与热管理:在高环境温度或密集设备中,考虑器件的热降额并预留散热空间。
  • 与其他保护器件配合:在需要更严格保护的系统中,可与熔断器、PTC 或抑制电阻等组合使用,防止单一器件承受超限能量。

七、常见问题简答

  • Q:该器件能否用于双向保护?
    A:该型号为单向(单极)TVS,适用于直流供电或需要单向钳位的场合;双向保护请选用标注为双向(bidirectional)的TVS 型号。

  • Q:如何判断是否需要并联多个 TVS?
    A:当预期浪涌能量或重复冲击频率超过单个器件的额定能量或散热能力时,可考虑并联或采用更大功率等级的器件,并注意均流与布局。

  • Q:封装是否适合自动化生产?
    A:SMC(DO-214AB)为常见表面贴装封装,支持标准贴片回流/波峰焊工艺,适合自动化装配。

5.0SMDJ22A 凭借其高浪涌能力、低泄漏和低电容特性,是电信与计算机等领域保护供电与接口的理想选择。具体电气特性与测试条件请参见 BORN 官方数据手册,以获得完整的技术规范与应用示例。

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