WMSIC Electronic Components

RUILON SS24

ModelSS24
PackageSMA
BrandRUILON
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
RUILON SS24
Type
RUILON
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SS24
Electronic Component
1
Package
SMA
Electronic Component
Schottky Diode
Electronic Component
0.108g
Electronic Component
1
Electronic Component
BM0257267472
Current
2A
Diode
Electronic Component
Current(Ir)
500uA@40V
(Vf)
550mV@2A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
2000

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

SS24(RUILON 瑞隆源)产品概述

一、产品简介

SS24 是一款封装为 SMA 的独立式肖特基整流二极管,由 RUILON(瑞隆源)提供,针对需要低正向压降和快速切换、2A 直流整流能力的功率应用设计。该器件在 2A 工作电流下正向压降典型为 0.55V,反向耐压 40V,具备较低的开关损耗和良好的效率,是开关电源、整流和保护电路中的常用选择。

二、主要电气参数

  • 正向压降 (Vf):0.55V @ IF = 2A
  • 直流反向耐压 (VR):40V
  • 连续正向整流电流 (IF):2A
  • 非重复峰值浪涌电流 (IFSM):50A
  • 反向漏电流 (IR):500μA @ VR = 40V
  • 工作结温范围:-55 ℃ ~ +150 ℃
  • 封装:SMA(独立式)

三、产品特点与优势

  • 低正向压降:0.55V@2A 的 Vf 有助于降低整流与开关损耗,提高系统效率,适合对效率敏感的低压电源应用。
  • 快速切换特性:肖特基结构使其具有较短恢复时间,减少高频开关损耗与电磁干扰。
  • 峰值浪涌能力好:50A 的单次非重复峰值冲击电流能力,可承受较大瞬态负载或浪涌情形。
  • 宽温度工作范围:-55 ℃ 到 +150 ℃,适应工业级温度环境需求。
  • SMA 表面贴装封装:便于自动贴片、回流焊接和高密度装配,适合 PCB 空间有限的设计。

四、典型应用场景

  • 开关电源(SMPS)的输出整流或续流二极管
  • 汽车电子(低压电源、负载保护)—— 注意 ISO/车规认证要求
  • DC-DC 转换模块、充电器和适配器
  • 反向极性保护与电源取反保护电路
  • 功率整流与高频整流场合
  • 稳压电路中作为快恢复/肖特基整流元件

五、使用与设计注意事项

  • 热管理:尽管 SMA 封装体积小,仍需考虑 PCB 铜箔面积作为散热路径。高连流或长时间工作在高温环境下建议增大散热铜箔或使用散热垫。
  • 反向漏电随温度增加:IR 在 40V 下为 500μA,但随结温上升会增大,设计时需考虑高温工况下的漏电对系统的影响(例如休眠功耗)。
  • 纹波与峰值应力:若电路中存在频繁的大电流脉冲或高纹波,应检查 IFSM 与平均整流能力、并结合 PCB 热阻进行裕量设计。
  • 封装机制:SMA 为表贴封装,焊接时遵循回流曲线与 PCB 可焊性要求,避免长时间高温影响可靠性。
  • ESD 与处理:在封装和测试过程中注意静电防护,肖特基二极管对瞬态过压较敏感,必要时在系统层加装 TVS 做瞬态吸收。

六、典型电路连接建议

  • 输出整流:将 SS24 并联在开关管或变压器二次侧作为低压快速整流器,可显著降低正向损耗。
  • 免费轮二极管:在开关器件的续流路径中使用 SS24,利用其低 Vf 与快恢复减少能量回收损耗。
  • 反向保护:将 SS24 放置在供电输入端,利用肖特基的低 Vf 实现小压降的反向极性保护。

七、可靠性与测试要点

  • 封装与焊接可靠性:遵循行业回流焊标准(参考 IPC/J-STD),避免反复高温循环导致焊点裂纹。
  • 温升与老化测试:在目标应用中进行功耗计算与热仿真,必要时做温升测试和加速老化验证。
  • 浪涌与冲击试验:评估 IFSM 在实际浪涌场景下的表现,确保不会发生二极管热失控或结损伤。

八、选型与采购建议

  • 若系统电压靠近 40V 或存在高反向电压瞬态,请选用更高 Vr 余量的型号;若对漏电流要求严格,应选择 IR 更低或在更低温度下工作的版本。
  • 在批量采购前建议索取 RUILON 的完整 datasheet 与样品进行实测验证,确认封装尺寸(SMA 的焊盘建议)与性能指标满足项目需求。
  • 如需更高电流或更低正向压降,可考虑并联多个二极管或选用更大封装(如 SMB、SMC)/不同工艺的肖特基器件。

如需我帮忙整理 SS24 的 PCB 焊盘参考尺寸、热阻估算或给出布板建议与仿真参数,可提供 PCB 层叠与功率工况信息,我会给出更具体的设计建议。

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