WMSIC Electronic Components

PANJIT SMF33A_R1_00001

ModelSMF33A_R1_00001
PackageSOD-123FL
BrandPANJIT
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
PANJIT SMF33A_R1_00001
Type
PANJIT
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
SMF33A_R1_00001
Electronic Component
1
Package
SOD-123FL
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0265820310
Operating Temperature
55℃~+150℃
Voltage
53.3V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
40.6V
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.

SMF33A_R1_00001(强茂PANJIT)TVS管产品概述

一、产品定位与核心功能

SMF33A_R1_00001是PANJIT(强茂)推出的表面贴装瞬态抑制二极管(TVS),核心定位为敏感电子电路的静电放电(ESD)与浪涌过压防护器件。该器件可在ns级时间内响应瞬态过压,将电路电压钳位至安全范围,避免后端半导体器件(如MCU、传感器、接口芯片)因过压损坏;同时符合IEC 61000-4-2静电防护标准,满足工业、消费电子等多领域的电磁兼容要求。

二、关键电气参数深度解析

该器件的参数针对低电压电路防护优化,核心参数及实际意义如下:

  1. 反向截止电压(Vrwm):33V
    正常工作时反向偏置的最大耐受电压,无击穿或漏电流异常。适配5V、12V、24V等常见低电压系统(如工业PLC、车载12V电源),确保电路正常运行时不干扰信号。
  2. 击穿电压(Vbr):40.6V
    反向电压超过此值时,器件从截止态转入导通态,是“过压检测”的关键阈值。Vbr略高于Vrwm,避免电压波动误触发保护。
  3. 钳位电压(Vc):53.3V
    浪涌发生时,器件导通后将电路电压钳位在该值以下,是保护后端器件的核心指标。结合峰值脉冲电流(Ipp=3.8A),计算得Ipp×Vc≈202W,与官方标称的峰值脉冲功率(Ppp=200W@10/1000μs)一致,参数匹配可靠。
  4. 峰值脉冲参数(Ipp/Ppp):3.8A/200W@10/1000μs
    采用行业标准10/1000μs浪涌波形(上升沿10μs,半峰值时间1000μs)测试,反映对中等能量浪涌的耐受能力,适合电源端口或信号接口防护。
  5. 反向漏电流(Ir):1μA@Vrwm
    正常工作时漏电流极小,不增加电路功耗或影响信号完整性。
  6. 工作温度范围:-55℃~+150℃
    宽温设计覆盖工业级(-40℃+85℃)与汽车级(-55℃+125℃)需求,可在高温环境(如车载发动机舱、工业高温设备)中长期稳定工作。

三、封装与可靠性设计

该器件采用SOD-123FL封装,具备以下优势:

  • 尺寸紧凑:典型尺寸约1.6mm×0.8mm×0.6mm,适合高密度PCB设计(如手机、可穿戴设备);
  • 无铅环保:符合RoHS与REACH标准,满足绿色制造要求;
  • 高可靠性:封装抗机械应力能力强,配合宽温参数,可在振动、温度变化剧烈场景下稳定工作。

四、典型应用场景

结合参数特性,该器件适用于以下场景:

  1. 消费电子接口:手机、平板的USB Type-C、HDMI接口ESD防护,避免插拔静电损坏;
  2. 工业控制电路:PLC输入输出端口、传感器信号线路的浪涌抑制,适配24V工业电源;
  3. 车载电子系统:CAN/LIN总线接口、车载USB充电端口的过压保护,符合汽车级宽温要求;
  4. 通信设备:路由器、交换机的以太网端口ESD防护,满足IEC 61000-4-2标准;
  5. 低电压电源电路:5V/12V电源输入端的瞬态浪涌抑制,保护电源管理芯片。

五、品牌与合规性说明

PANJIT(强茂)是台湾资深半导体制造商,专注功率器件与保护器件研发近30年,其TVS产品线通过多项国际认证。SMF33A_R1_00001除符合IEC 61000-4-2外,还满足无铅、无卤素要求,可靠性经批量验证,适合量产应用。

该器件以“小尺寸、宽温、强防护”为核心优势,是低电压电路瞬态保护的高性价比选择。

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