WMSIC Electronic Components

BORN SMFJ48CA

ModelSMFJ48CA
PackageSOD-123F
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BORN SMFJ48CA
Type
BORN
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
SMFJ48CA
Electronic Component
1
Package
SOD-123F
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.045g
Electronic Component
1
Electronic Component
BM0264692207
Voltage
77.4V
Current(Ir)
1uA
Voltage(VBR)
53.3V
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.

SMFJ48CA 产品概述

一、产品简介

SMFJ48CA 是 BORN(伯恩半导体)推出的一款高能量抑制二极管(TVS),为双向结构,专为 48V 级电源与信号线路提供浪涌和瞬态过压保护。器件采用 SOD-123F 小封装,体积小、响应快,是电源口、PoE、通信设备和工业控制等场景常用的防护元件。

二、主要性能参数

  • 极性:双向(双向钳位,适用于交流或双向瞬态)
  • 反向截止电压 Vrwm:48V(推荐在不超负荷的直流工作电压下使用)
  • 击穿电压 VBR:53.3V(典型值)
  • 钳位电压(Vc):77.4V(在峰值脉冲电流 Ipp 条件下)
  • 峰值脉冲电流 Ipp:2.6A
  • 峰值脉冲功率 Ppp:200W(测试条件请参见厂方数据手册)
  • 反向漏电流 Ir:1µA(常温、额定电压下的典型值)
  • 封装:SOD-123F,表面贴装,适合自动贴装与回流焊工艺

三、主要特点与优势

  • 高能量吸收:200W 峰值脉冲功率能力,可在短时突发浪涌下有效钳制电压,保护下游元件。
  • 双向保护:对正负瞬态均能钳位,适用于交流/反向保护或需要双向保护的电源线路。
  • 低漏电流:1µA 等级的反向电流在待机条件下有利于系统低功耗设计。
  • 小巧封装:SOD-123F 便于在有限空间内实现保护,适合模块化设计与密集布板。

四、典型应用场景

  • PoE(以太网供电)输入口与供电线路保护
  • 48V 工业电源总线/分路保护
  • 通信设备的电源与接口防雷击、浪涌保护
  • 电池供电系统及逆变器的瞬态过压钳制
  • 消费电子与仪表设备的输入防护

五、布局与使用建议

  • 尽量将 TVS 器件靠近被保护端口或连接器放置,减小引线长度和走线感抗,提升吸收效率。
  • 在高能量场合,注意焊盘与铜箔面积,必要时增加散热铜箔或过孔以分散热量。
  • 安装应遵循制造商推荐的回流焊温度曲线,避免过度加热导致器件性能退化。
  • 设计时确认浪涌测试条件(波形、能量等级)与器件 Ppp、Ipp 对应,必要时并联或选用更高能量等级产品。

六、可靠性与选型注意事项

  • Ppp 与 Ipp 通常基于特定脉冲波形测得(详见数据手册),选型时务必对照实际浪涌条件(幅值、持续时间、波形)进行评估。
  • 双向 TVS 在额定 Vrwm 附近存在泄漏电流,需确认系统在该漏电流下是否满足设计要求。
  • 若工作环境有较高温度或持续频繁浪涌,应考虑器件的热循环与寿命影响,必要时选用更大功率等级或增加保护级数。

七、型号与订购信息

  • 型号:SMFJ48CA
  • 品牌:BORN(伯恩半导体)
  • 封装:SOD-123F(表贴)
  • 订购时请参考厂方完整数据手册与封装图,确认批次和规格一致。

如需更详细的电气特性曲线、脉冲试验条件或封装尺寸图,我可以帮您查找并整理厂方数据手册中的关键参数与推荐电路。

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