WMSIC Electronic Components

SHIKUES SMF24CA

ModelSMF24CA
PackageSOD-123FL
BrandSHIKUES
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
SHIKUES SMF24CA
Type
SHIKUES
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SHIKUES
Electronic Component
SMF24CA
Electronic Component
1
Package
SOD-123FL
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.038g
Electronic Component
1
Electronic Component
BM0265580764
Operating Temperature
55℃~+150℃
Voltage
38.9V
Current(Ir)
1uA
Voltage(VBR)
29.5V
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.

SMF24CA 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心属性

SMF24CA是SHIKUES(时科)推出的双向瞬态抑制二极管(TVS),属于SMF系列小型化过压保护器件,专为24V电压等级的电路系统设计,核心作用是快速抑制瞬态浪涌电压,避免后端敏感电子元件(如MCU、传感器、通信芯片等)因过压损坏。其双向极性设计可同时防护正负方向的浪涌干扰,适配单向/双向信号线路及电源端口的防护需求,兼具小型化、高可靠性与宽温适应性。

二、关键电气参数深度解析

SMF24CA的电气参数严格遵循国际浪涌测试标准,核心参数直接决定其防护能力与适用场景:

1. 工作状态核心参数

  • 反向截止电压(Vrwm):24V
    器件正常工作时(无浪涌)可承受的最大反向电压,当电路电压稳定在24V及以下时,SMF24CA处于截止状态,静态漏电流极小(≤1μA),不会影响电路正常功能或增加额外功耗。
  • 击穿电压(Vbr):29.5V(典型值)
    浪涌电压超过29.5V时,器件快速由截止转为导通,将浪涌能量泄放至地,避免电压进一步升高。该参数一致性好(偏差≤±5%),确保不同批次产品防护性能稳定。

2. 浪涌防护核心能力

  • 钳位电压(Vc):38.9V(@Ipp=5.1A)
    浪涌电流达到峰值时,器件两端的最大电压,是后级电路的“安全上限”——38.9V远低于敏感元件的损坏阈值(通常≥40V),有效避免后端器件因过压击穿。
  • 峰值脉冲功率(Ppp):200W@10/1000μs
    采用国际标准浪涌波形(上升时间10μs,半峰值时间1000μs)测试,200W的脉冲功率可应对常见干扰:雷击浪涌、开关浪涌(如电机启停)、静电放电(ESD)等。
  • 峰值脉冲电流(Ipp):5.1A@10/1000μs
    与Ppp匹配(Ppp=Vc×Ipp≈38.9V×5.1A),直接反映器件单次浪涌的最大泄放能力,可覆盖多数工业与消费电子场景的浪涌强度。

3. 环境与静态参数

  • 反向漏电流(Ir):≤1μA
    正常工作时漏电流极低,不会导致电路信号失真或电源效率下降。
  • 工作温度范围:-55℃~+150℃
    覆盖工业级宽温环境,可稳定工作于高温(如汽车发动机舱、光伏逆变器)、低温(如户外通信基站、极地设备)场景。

三、封装与可靠性设计

SMF24CA采用SOD-123FL表面贴装封装,具备以下优势:

  • 小型化: 封装尺寸紧凑(约2.5mm×1.3mm×1.0mm),适配高密度PCB设计(如便携式手持终端、小型工业控制器),节省电路空间;
  • 高可靠性: 封装结构牢固,抗振动(≥10G)、抗冲击(≥50G)能力强,符合工业级器件的可靠性要求;
  • 散热性: 扁平封装设计利于热量快速散发,避免浪涌时器件过热损坏,延长使用寿命。

四、典型应用场景

结合参数与封装特点,SMF24CA广泛应用于以下领域:

  1. 24V电源系统防护: 工业PLC、伺服驱动器、光伏逆变器等24V直流电源的输入/输出端口,抑制开关浪涌与雷击干扰;
  2. 通信接口防护: RS485、CAN总线、以太网等双向信号线路,防护静电放电与共模/差模浪涌;
  3. 汽车电子: 车载传感器(温度、压力传感器)、车载娱乐系统的电源与信号端口(适配-40℃~+125℃汽车级环境);
  4. 消费电子: 便携式设备(如智能手表、手持扫码枪)的充电端口、音频接口,防护ESD与电源浪涌。

五、品牌与产品优势

SHIKUES(时科)作为专注于过压保护器件的品牌,SMF24CA具备以下核心优势:

  • 参数一致性: 击穿电压、钳位电压偏差控制在±5%以内,批量应用时防护性能稳定,无需额外筛选;
  • 双向防护: 无需区分正负极,简化电路设计与焊接工艺,降低生产复杂度;
  • 宽温可靠性: 满足-55℃~+150℃极端环境,适配多行业场景(工业、汽车、通信);
  • 成本效益: 小型化封装与高可靠性结合,平衡防护性能与设计成本,适合规模化应用。

SMF24CA凭借双向防护、宽温稳定、小型化等特点,成为24V电路系统过压保护的高性价比选择,可有效提升电子设备的抗干扰能力与使用寿命。

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