WMSIC Electronic Components

BORN DSS310

ModelDSS310
PackageSOD-123FL
BrandBORN
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
BORN DSS310
Type
BORN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
DSS310
Electronic Component
1
Package
SOD-123FL
Electronic Component
Schottky Diode
Electronic Component
0.042g
Electronic Component
1
Electronic Component
BM0226526818
Current
3A
Diode
1
Current(Ir)
500uA@100V
(Vf)
850mV@3A
Electronic Component
55℃~+150℃
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.

DSS310 产品概述

一、产品简介

DSS310 为 BORN(伯恩半导体)系列肖特基整流二极管,采用 SOD-123FL 小型封装,面向中功率、高速整流与防反接保护等应用。器件的额定整流电流为 3A,直流反向耐压 (Vr) 为 100V,具有低正向压降与较高浪涌能力,适合空间受限且需兼顾效率与可靠性的电源设计。

二、主要电气参数与性能特点

  • 工作结温范围:-55℃ ~ +150℃,适应宽温区工业级应用。
  • 正向压降 (Vf):850 mV @ 3A(典型),在中等电流工况下有助于降低导通损耗。
  • 额定整流电流:3A(连续)——适合单颗处理中小功率负载。
  • 非重复峰值浪涌电流 (Ifsm):80A(单次脉冲)——可承受启动/浪涌电流,但不宜长期重复高幅值冲击。
  • 反向电流 (Ir):500 μA @ 100V——在高耐压条件下存在一定漏电,需在高温或高阻抗电路中加以考虑。
  • 直流反向耐压:100V,适合 24V、36V、48V 等常见工业与通信电源系统。

性能要点:作为肖特基二极管,DSS310 具备快速导通/关断特性和较低的正向压降,从而在整流与续流场合相比普通硅整流器件可减少开关损耗与热量。但需注意肖特基器件在高温或高反向偏压下的漏电特性相对敏感。

三、封装与热管理建议

  • 封装:SOD-123FL,小型低高度封装,适合表面贴装工艺(SMT)。相较于传统 SOD-123 更利于机械稳定性与散热。
  • 热管理:在 3A 连续工作条件下,正向压降 0.85V 对应约 2.55W 的功耗(P = Vf × I),需要通过 PCB 设计进行热量扩散——建议在焊盘处使用较大铜箔面积并加设热铜层或热过孔,增加散热路径。
  • 回流焊与组装:遵照 SOD-123FL 的回流规范进行焊接,避免超温与超时;储存与焊接前防潮包装打开后应在规定时间内回流焊接。

四、典型应用场景

  • 开关电源(SMPS)输入整流或输出续流二极管。
  • DC-DC 转换器的续流/整流器件,可降低开关损耗。
  • 电池管理与充电回路,作为防反接保护或阻断反向电流。
  • 工业与通信电源(如 48V 档位)中的保护与整流。
  • 汽车电子(非安全关键位置)、家电及消费类电子中对体积与效率要求均衡的场合。

五、使用注意事项与设计建议

  • 漏电与温度:反向漏电 Ir 在 Vr=100V 时为 500 μA,且随结温升高会显著增加。若应用对静态漏电非常敏感(如高阻传感、低待机功耗系统),需在电路设计中考虑温度引起的漏电增长或选用更低漏电的器件。
  • 散热余量计算:在连续 3A 工作下产生的热量需合理散出。建议在 PCB 布局阶段为器件留出足够铜面积,并考虑多层铜箔、过孔散热或把热源分散到外部散热结构。
  • 浪涌能力与保护:Ifsm=80A 适用于一次性浪涌(例如上电浪涌、负载突入)。若场合中存在频繁或较高幅值的浪涌,应增加限流、NTC 热敏电阻或使用更高浪涌能力的器件。
  • 并联注意事项:若为提高电流能力考虑并联多颗二极管,需确保每颗器件在正向压降与热阻方面匹配,否则可能出现电流不平衡,建议使用电阻或热耦合设计来改善均流。
  • 焊接与可靠性:遵循厂家回流规范,避免重复高温循环;装配时注意避免机械应力集中在封装引脚处。

六、可靠性与测试建议

  • 推荐在目标应用环境下进行实际样机测试,包括温升测试、长期高温高压(HTOL)测试、浪涌与冲击测试以及反向漏电随温度曲线测量。
  • 对于关键应用,建议做湿热循环、热冲击与机械振动试验,验证 SOD-123FL 在复杂工况下的可靠性。
  • 设计验证时应考虑最差情况(高结温、最大反向电压、环境极端)对器件性能的影响,并据此制定安全裕度与散热对策。

总结:DSS310 以其 100V 耐压、3A 连续电流与 80A 峰值浪涌能力,结合小型 SOD-123FL 封装,适合需要节省 PCB 空间且要求较好开关效率的中功率整流与保护应用。在设计时需重点关注热设计与高温下的反向漏电特性,以确保长期可靠运行。

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