WMSIC Electronic Components

PANJIT SMF28A_R1_00001

ModelSMF28A_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 23+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANJIT SMF28A_R1_00001
Type
PANJIT
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
SMF28A_R1_00001
Electronic Component
1
Package
SOD-123FL
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.035g
Electronic Component
1
Electronic Component
BM0227686041
Operating Temperature
55℃~+150℃
Voltage
45.4V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
31.1V
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.

SMF28A_R1_00001 产品概述

一、产品简介

SMF28A_R1_00001 是 PANJIT(强茂)出品的一款瞬态电压抑制器(TVS),针对28V工作电压等级的直流供电与信号保护设计。器件为表面贴装封装 SOD-123FL,具备高达200W 的瞬态脉冲吸收能力,适用于工业、通信、车载及电源系统中对开关浪涌、雷击和静电放电等瞬态过压的保护需求。

二、主要技术参数

  • 反向截止电压 Vrwm:28V(额定工作电压)
  • 击穿电压(典型):31.1V(进入导通区间的电压起点参考值)
  • 钳位电压 Vc(典型):45.4V(在峰值脉冲条件下的钳位电压)
  • 峰值脉冲功率:200W(瞬态吸收能力,按行业脉冲测试方法计)
  • 类型:TVS(二极管类型瞬态抑制器)
  • 封装:SOD-123FL(低电感、低剖面 SMD 封装)

三、关键特性与优势

  • 高效抑制:200W 的瞬态吸收能力能够在短时冲击(如雷击、开关冲击)中将尖峰电压钳位到安全范围,保护后端电路元件。
  • 针对28V等级优化:28V 反向截止电压适合24V/28V工业与通信电源轨,工作余量合理,既保证正常工作又能提供过压保护。
  • 小型表贴封装:SOD-123FL 占板面积小,适合高密度板载设计,同时低封装电感有利于快速响应高速脉冲。
  • 稳定性好:击穿电压与钳位值保持一致性,便于设计时进行安全裕度评估与可靠性验证。

四、典型应用场景

  • 工业自动化与控制系统的24V/28V电源保护
  • 通信设备的电源输入和信号接口浪涌保护(如 PoE、远端供电模块)
  • 电源管理与配电模块中对上游突发过压的防护
  • 车载非关键线路或附件电源(需结合车规级要求验证)
  • 其它对瞬态抑制有要求的电子设备输入端与接口处

五、安装与选型建议

  • 布局靠近受保护端口或电源入口,缩短线路长度以降低串联电感,从而提高抑制效果。
  • 确认系统最大持续工作电压小于 Vrwm(28V),并保证钳位电压(45.4V)低于被保护器件的耐压极限。
  • 对于可能的高能量冲击,评估是否需并联多颗 TVS 或配合系列阻抗(限流电阻、保险丝)分担能量。
  • 封装热阻与 PCB 热散设计需考虑瞬态能量转换为热量时的温升,必要时留有散热铜箔或热通孔。
  • 在安规或车规场景使用前,请参照 PANJIT 数据手册进行温度循环、焊接可靠性和环境适应性测试。

六、可靠性与合规

SMF28A_R1_00001 适用于工业级应用,通常满足 RoHS 等环保要求;具体的电气特性、脉冲测试条件(波形、脉宽)以及环境测试结果,请以 PANJIT 官方 datasheet 为准。设计时建议保留充分的安全裕度,并在样机阶段做实际雷击/浪涌仿真与测试验证。

总结:SMF28A_R1_00001 是一款面向28V电源轨的高能瞬态抑制器,结合 SOD-123FL 小型低电感封装与 200W 峰值脉冲能力,能在多种工业和通信场景中为电路提供可靠的过压保护。选型时务必对钳位、热量及系统最大工作电压进行综合评估。

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