WMSIC Electronic Components

GOODWORK SS310-SMB SS310

ModelSS310-SMB
PackageSMB(DO-214AA)
BrandGOODWORK
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
GOODWORK SS310-SMB
Type
GOODWORK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
SS310-SMB
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Schottky Diode
Electronic Component
0.192g
Electronic Component
1
Electronic Component
BM0230812391
Current
3A
Diode
Electronic Component
Current(Ir)
20uA
(Vf)
850mV@3A
Electronic Component
65℃~+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.

SS310-SMB 产品概述

SS310-SMB(品牌:GOODWORK 固得沃克)是一款独立式肖特基整流二极管,封装为SMB(DO-214AA),额定整流电流3A,反向耐压100V,设计用于需要低正向压降和快速恢复特性的中功率整流与保护场合。本概述从参数、特性、热管理、应用场景及安装注意等方面,给出实用的工程指南,便于在电源与保护电路中可靠选型与使用。

一、主要参数概览

  • 型号:SS310-SMB(GOODWORK / 固得沃克)
  • 封装:SMB(DO-214AA,独立式)
  • 正向压降(Vf):0.85 V @ 3 A(典型/标称测试点)
  • 额定直流整流电流:3 A
  • 非重复峰值浪涌电流(Ifsm):80 A(短时突发能力)
  • 直流反向耐压(Vr):100 V
  • 反向电流(Ir):20 μA(在额定Vr下的典型室温值,随温度上升显著增加)
  • 工作结温范围:-65 ℃ 至 +150 ℃
  • 封装形式:单只独立二极管,便于点对点安装及散热处理

二、主要特性与工程价值

  • 低正向压降:Vf=0.85 V 在3 A下的表现有利于减小导通损耗、提高整流效率,适合要求较低功耗的整流与保护场景。
  • 快速响应:肖特基结构本征具备低恢复时间和低结电容,有利于开关电源、高频DC-DC变换器中的快速整流与钳位。
  • 良好的浪涌承受力:短时峰值浪涌电流80 A,可应对启动瞬态、电容充电或短路时的瞬间冲击,但不宜长期承受反复大幅度浪涌。
  • 宽工作温度:-65 至 +150 ℃ 的结温范围,满足工业级和部分恶劣环境应用场景的可靠性要求。

三、热管理与功耗估算

  • 典型稳态功耗:在额定直流3 A下,功率损耗约为 Pd = If × Vf = 3 A × 0.85 V = 2.55 W。
  • 热管理建议:由于SMB为独立式封装,建议在PCB上提供足够的散热铜箔面积、热过孔或局部散热面,必要时将二极管焊接在散热片或导热垫上以降低结温。
  • 温度影响:反向漏电流随温度急剧上升,设计时须考虑在高温工况下的漏电增加及相应的热失配。对长期可靠性应做结温控制与适当的电流/功耗降额。

四、典型应用场景

  • 开关电源(SMPS)输出整流或同步整流替代件(在允许的Vf范围内)。
  • DC-DC转换器的二次整流、输出二极管或回流钳位。
  • 逆向保护(防反接)及肖特基钳位电路,用于保护敏感负载或防止反向电流。
  • 电池充电/管理、太阳能逆变器输入保护、汽车电子(需确认环境温度与浪涌规范)等需要低正向压降与快速整流的场合。
  • 输入浪涌吸收与再生能量路径控制,利用其峰值浪涌能力处理瞬态事件。

五、封装与安装建议

  • 封装识别:SMB(DO-214AA)体积适中,带有极性标识(通常在阴极端有标记),安装时请严格按极性焊接。
  • PCB布局:在二极管附近保留宽铜箔作为散热平面;若工况为持续3 A或更高的脉冲能量,建议在铜皮周围加热过孔并连接到多层内铜层以增强散热。
  • 焊接与回流:遵循SMB封装的焊接工艺规范,避免超出制造商给定的温度-时间曲线;独立器件在手工焊接时注意避免长时间局部过热。
  • 储存与处理:避免湿热环境和机械应力;高温回流或热循环后应复测关键参数(Vf、Ir)以确保性能稳定。

六、选型与使用注意

  • 若电路对导通损耗非常敏感,可比较同类硅肖特基或同步MOSFET方案,评估整体效率与成本。
  • 对于高温或高漏电敏感应用,应关注20 μA在工作温度下的增幅并留足裕量;必要时选择更低漏电或更高Vr等级器件。
  • 在需要反复承受大浪涌的场合,应评估Ifsm的循环可靠性并考虑器件的热冲击与机械可靠性。
  • 采购与替代:选购时注意品牌与批次一致性,GOODWORK(固得沃克)提供的SS310-SMB适合一般工业级整流用途;替代时注意Vf、Ifsm、Vr与封装兼容性。

结语:SS310-SMB凭借SMB封装、3A整流能力与100V阻断等级,适合中功率整流与保护场景。合理的散热设计与对浪涌/温度特性的评估,是确保该器件在目标应用中长期稳定工作的关键。若需进一步的电气特性曲线、封装尺寸或热阻参数,可联系供应商或查阅完整数据手册以进行最终定稿与可靠性验证。

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