WMSIC Electronic Components

JUXING SS54

ModelSS54
PackageSMA(DO-214AC)
BrandJUXING
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
JUXING SS54
Type
JUXING
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JUXING
Electronic Component
SS54
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Schottky Diode
Electronic Component
0.102g
Electronic Component
1
Electronic Component
BM0265602199
Current
5A
Diode
1
Current(Ir)
500uA
(Vf)
550mV@5A
Electronic Component
65℃~+125℃
Electronic Component
Electronic Component
Electronic Component
5000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SS54(5A/40V肖特基二极管)产品概述

一、产品基本定位

SS54是钜兴(JUXING)推出的独立式肖特基整流二极管,核心参数为5A直流整流电流、40V反向耐压,采用SMA(DO-214AC)表面贴装封装。作为低压大电流应用的经典器件,其低正向压降特性适配高密度、高效率电路设计,广泛覆盖消费电子、工业电源、汽车电子等领域。

二、核心电气参数详解

SS54的电气性能围绕“低损耗、宽适配”设计,关键参数如下:

  1. 正向压降(Vf):550mV(典型值,测试条件:IF=5A)—— 肖特基二极管核心优势,远低于同电流快恢复二极管(典型Vf≥1V),可将整流/续流损耗降低45%以上;
  2. 直流反向耐压(Vr):40V—— 满足12V/24V低压系统的反向电压需求(如电池充电、12V电源适配器),余量充足;
  3. 整流电流(IF):5A(直流平均电流)—— 额定电流覆盖中小功率电源的核心负载需求;
  4. 反向漏电流(Ir):500μA(典型值,测试条件:VR=40V)—— 静态漏电流小,减少待机功耗(待机时功耗仅0.02W);
  5. 非重复峰值浪涌电流(Ifsm):150A(测试条件:8.3ms脉冲)—— 可承受开机瞬间或负载突变的浪涌冲击(如电容充电浪涌);
  6. 工作结温范围:-65℃+125℃—— 宽温特性适配工业级(-40℃+85℃)及汽车电子辅助系统(-40℃~+125℃)的环境需求。

三、封装与物理特性

SS54采用SMA(DO-214AC)表面贴装封装,具有以下特点:

  • 尺寸紧凑:封装尺寸约2.4mm×1.6mm×1.1mm,适合高密度PCB布局(如笔记本电源、小型逆变器);
  • 贴装兼容:引脚采用镀锡处理,兼容无铅回流焊工艺,适配自动化生产;
  • 散热设计:封装塑料材料导热性良好,结合低Vf特性,5A连续工作时(环境温度≤85℃)无需额外散热片。

四、典型应用场景

SS54的参数特性决定其适配以下场景:

  1. 开关电源续流二极管:AC-DC适配器、LED驱动电源的次级续流,低Vf可将续流损耗从快恢复二极管的1W+降至0.5W以内,提升电源效率2-3%;
  2. 低压直流整流:12V/24V电池组的充电整流、小型太阳能充放电控制器的主整流;
  3. 反向保护电路:消费电子(充电宝、智能音箱)的电池反向截止,防止电池接反损坏电路;
  4. 汽车电子辅助电源:车载USB充电器、仪表盘电源的整流/续流,宽温范围满足车载环境(-40℃~+85℃);
  5. 小型逆变器:100W以内DC-AC逆变器的输出整流,适配12V输入电压。

五、可靠性与环境适应性

SS54通过以下设计保障可靠性:

  • 宽温工作:-65℃~+125℃结温范围,可应对极端环境(如北方户外电子设备、高温车间电源);
  • 浪涌耐受:150A非重复浪涌电流,可承受开机时的电容充电浪涌(典型浪涌电流约80-100A);
  • 封装防护:塑料封装符合RoHS标准,无铅环保,引脚耐氧化,长期使用漏电流无明显上升。

六、选型优势

相比同规格竞品,SS54具有三大优势:

  1. 性价比高:国产钜兴品牌,价格低于进口品牌(如ST、ON)30%以上,适合批量应用;
  2. 参数均衡:5A电流+40V耐压+150A浪涌,覆盖90%以上低压大电流场景,无需额外降额;
  3. 易替换:SMA封装与市场主流SS54型号(如1N5822)引脚兼容,可直接替换。

SS54凭借“低损耗、小体积、宽温适配”的特性,成为低压大电流电路的高性价比选择,尤其适合对效率和成本敏感的批量应用场景。

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