WMSIC Electronic Components

Jingdao Microelectronics SS24F

ModelSS24F
PackageSMAF
BrandElectronic
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 Option 131502

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
Electronic SS24F
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SS24F
Electronic Component
1
Package
SMAF
Electronic Component
0.056g
Electronic Component
1
Electronic Component
BM0265794244
Electronic Component
Electronic Component
Electronic Component
3000

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

晶导微电子SS24F肖特基二极管产品概述

晶导微电子SS24F是一款专为低压大电流整流/续流场景设计的肖特基势垒二极管,采用SMAF(DO-219AB)表面贴装封装,具备低正向压降、快速开关特性及宽温度适应能力,广泛应用于消费电子、LED驱动、小型电源等领域,是替代传统硅整流管的高性价比方案。

一、产品基本定位与核心特性

SS24F针对低压(≤40V)、中电流(2A级)应用场景优化,核心特性包括:

  • 低正向压降:减少导通损耗,提升电源转换效率;
  • 快速开关速度:肖特基二极管固有优势,适合高频电路;
  • 宽温度适应:满足工业级及消费电子的宽环境温度需求;
  • 紧凑封装:SMAF贴片封装,适配高密度PCB设计,便于自动化生产。

二、关键电气参数解析

SS24F的参数设计精准匹配低压大电流需求,核心参数及意义如下:

  1. 正向导通特性:
    正向压降( V_f = 550mV@2A ),远低于普通硅整流管(通常≥1V),导通损耗( P=V_f×I=1.1W@2A ),可有效降低电源发热,提升效率。
  2. 反向耐压与漏电流:
    直流反向耐压( V_r = 40V ),反向漏电流( I_r = 500μA@40V ),漏电流小,反向截止可靠性高,避免电路反向偏置时的功率损耗。
  3. 电流承载能力:
    直流整流电流( I_F = 2A@T_a=25℃ ),非重复峰值浪涌电流( I_{FSM}=50A )(8.3ms半波),可承受电源启动、负载突变等瞬间大电流冲击,提升电路抗干扰能力。
  4. 温度范围:
    工作结温( T_j = -55℃+125℃ ),满足车载、工业等宽温环境(如车载-40℃85℃、户外设备-20℃~60℃)的可靠性需求。

三、封装设计与可靠性

SS24F采用SMAF(DO-219AB)表面贴装封装,设计优势显著:

  • 紧凑尺寸:符合国际标准,体积小(典型尺寸:3.0×2.0×1.2mm),适配高密度PCB布局;
  • 耐候性强:封装材料为耐高温环氧树脂,抗湿、抗机械应力,符合MIL-STD-202标准;
  • 焊接兼容性:引脚采用镀锡工艺,回流焊温度峰值≤260℃(时间≤30s),手工焊温度≤350℃(时间≤3s),适配自动化生产;
  • 工艺优化:晶导微电子通过芯片掺杂工艺提升反向击穿电压一致性,浪涌耐受能力经严格测试,符合行业可靠性要求。

四、典型应用场景

SS24F因参数适配性强,广泛应用于以下场景:

  1. 消费电子电源:手机/平板充电器(5V/2A输出整流)、USB电源适配器(10W~20W),低Vf减少发热,提升充电效率;
  2. LED驱动电路:LED球泡灯、台灯的低压整流/续流,避免大压降导致的功率损耗,延长LED寿命;
  3. 小型DC-DC转换器:降压/升压电路中的续流二极管,快速开关特性减少开关损耗,提升转换效率;
  4. 车载电子:12V车载USB充电器、小型车载设备电源,宽温及浪涌耐受能力适配车载环境(如启动时的电压波动)。

五、选型与使用注意事项

  1. 选型匹配:
    反向电压需≤40V(若电路存在更高反向电压,需选更高耐压型号),持续电流≤2A;
  2. 散热设计:
    SMAF封装散热依赖PCB铜箔,建议在引脚焊盘附近设计≥10mm²的铜箔,避免结温超过125℃;
  3. 温度降额:
    环境温度升高时,持续电流需降额(如( T_a=100℃ )时,降额至约1.5A);
  4. 焊接规范:
    避免过焊,防止封装开裂或芯片损坏。

SS24F凭借低损耗、高可靠性及紧凑封装,成为低压大电流整流/续流场景的优选器件,广泛适配各类消费电子及工业级小型电源设计需求。

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