WMSIC Electronic Components

RUILON SMFJ30A

ModelSMFJ30A
PackageSOD-123
BrandRUILON
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
RUILON SMFJ30A
Type
RUILON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMFJ30A
Electronic Component
1
Package
SOD-123
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.039g
Electronic Component
1
Electronic Component
BM0264850205
Operating Temperature
55℃~+150℃
Voltage
48.4V
Current(Ir)
1uA
Voltage(VBR)
36.8V
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.

SMFJ30A瞬态抑制二极管(TVS)产品概述

一、产品定位与核心功能

SMFJ30A是一款单向瞬态抑制二极管(TVS),核心定位为小型化中低电压过压保护器件,针对电子电路中常见的瞬态脉冲干扰(如静电放电ESD、电快速瞬变脉冲群EFT、雷击浪涌等)提供纳秒级响应的电压钳位保护,避免后端敏感元器件(如MCU、传感器、通讯芯片)因过压击穿损坏,广泛适配工作电压≤30V的电子系统。

二、关键电气参数深度解析

SMFJ30A的参数经过严格优化,平衡了保护性能与系统兼容性,核心参数及实际意义如下:

  1. 电压类参数:
    • 反向截止电压(Vrwm)=30V:电路正常工作时,TVS反向偏置且不导通的最大额定电压,适配12V、24V等中低电压系统;
    • 击穿电压(Vbr)=36.8V:反向过压时,TVS快速击穿的典型阈值,确保系统过压初期即启动保护(避免延迟导致器件损坏);
    • 钳位电压(Vc)=48.4V:10/1000μs脉冲波形下的最大钳位电压,是过压时后端电路能承受的安全上限(远低于敏感器件的损坏阈值)。
  2. 脉冲耐受能力:
    峰值脉冲电流(Ipp)=4.1A、峰值脉冲功率(Ppp)=200W(均为10/1000μs波形):可有效吸收中等强度瞬态脉冲能量,满足工业、汽车等场景的浪涌防护需求;
  3. 漏电流与温度特性:
    反向漏电流(Ir)=1μA:反向截止状态下漏电流极小,不影响系统正常功耗;
    工作温度范围(-55℃~+150℃):覆盖工业级与汽车级环境温度,适应极端工况(如沙漠高温、极地低温)。

三、封装设计与可靠性优势

SMFJ30A采用SOD-123表面贴装封装,具备显著的设计与可靠性优势:

  • 小型化:封装尺寸约2.9mm×1.6mm×1.1mm,适配高密度PCB布局(如小型消费电子、通讯模块),节省约30%的板级空间;
  • 工艺兼容性:符合回流焊、波峰焊等自动化贴装工艺要求,支持批量生产(贴装效率≥10000片/小时);
  • 抗环境应力:封装材料采用耐高温环氧树脂,可抵御振动(10g/20-2000Hz)、冲击(100g/1ms)等机械应力,长期工作稳定性优异。

四、品牌背景与品质保障

SMFJ30A由RUILON(瑞隆源) 出品,该品牌是国内专注于过压保护器件的专业厂商,产品覆盖TVS、ESD、压敏电阻等全系列,品质优势突出:

  • 生产工艺符合ISO9001质量管理体系,参数一致性偏差≤±5%(行业平均≤±10%);
  • 部分型号通过AEC-Q101汽车级认证(SMFJ30A宽温特性适配汽车场景);
  • 经过多轮可靠性测试:温度循环(-55℃~+150℃,1000次)、湿热老化(85℃/85%RH,1000小时)、脉冲寿命测试(1000次Ppp脉冲),确保长期稳定。

五、典型应用场景

SMFJ30A的参数与封装特性,使其适配多领域的过压保护需求:

  1. 汽车电子:车载CAN总线接口、胎压监测传感器、车载蓝牙模块的过压保护(宽温满足汽车-40℃~+85℃工况);
  2. 工业控制:PLC输入输出端口、工业温度传感器、电机驱动电路的浪涌防护;
  3. 消费电子:智能手环充电接口、蓝牙耳机音频接口的ESD/EFT保护(小型化适配便携设备);
  4. 通信设备:路由器以太网端口、基站射频接口的瞬态脉冲防护(高密度PCB适配性强)。

SMFJ30A凭借“小型化、宽温、高脉冲耐受”的核心优势,成为中低电压系统过压保护的高性价比选择,广泛应用于汽车、工业、消费电子等领域。

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