WMSIC Electronic Components

MSKSEMI SK36

ModelSK36
PackageSMA
BrandMSKSEMI
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
MSKSEMI SK36
Type
MSKSEMI
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
SK36
Electronic Component
1
Package
SMA
Electronic Component
Schottky Diode
Electronic Component
0.083g
Electronic Component
1
Electronic Component
BM0264464041
Current
3A
Diode
1
Current(Ir)
20uA@60V
(Vf)
850mV@3A
Electronic Component
65℃~+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.

SK36 产品概述

一、概述

SK36 是 MSKSEMI(美森科)推出的一款SMA封装表面贴装整流二极管,适用于需要中等电流承载与较低正向压降的功率整流场合。器件在3A整流电流工作点下,具有约0.85V的正向压降,同时提供60V的反向耐压和良好的浪涌承受能力,适配开关电源、适配器、车载电子及一般功率整流设计。

二、主要参数

  • 型号:SK36(品牌:MSKSEMI)
  • 封装:SMA(表面贴装)
  • 正向压降 (Vf):0.85 V @ 3 A
  • 直流反向耐压 (Vr):60 V
  • 额定整流电流:3 A(平均正向电流)
  • 非重复峰值浪涌电流 (Ifsm):80 A
  • 反向电流 (Ir):20 μA @ 60 V
  • 工作结温范围:-65 ℃ ~ +150 ℃
  • 特性:低正向压降、易于拾取放置、内置应力消除、适合表面贴装工艺

三、性能特点

  • 低正向压降:在3A工作点时约0.85V,能有效降低导通损耗和发热,提升系统效率,尤其在整流与续流应用中优势明显。
  • 优异的浪涌能力:80A 的非重复峰值浪涌电流可应对开机、电容充电等瞬态电流冲击,增强系统可靠性。
  • 低反向漏电:在60V时反向电流仅约20μA,有利于降低开路功耗及待机损耗,适用于低功耗场景。
  • 宽温度范围:-65℃至+150℃的结温适应力强,适合工业及车载等恶劣环境应用。
  • 表面贴装与可取放性:SMA封装便于自动贴装与回流焊,机械强度与可操作性良好;封装中设有应力消除结构,降低热循环与机械应力对器件的影响。

四、典型应用场景

  • 开关电源(SMPS)及整流输出级
  • DC-DC 转换器的续流或肖特基整流
  • 充电器、适配器及电源模块
  • 车载电子的保护与整流(需遵守车规级设计规范)
  • 极性保护、电源反接保护与防反向电流场合
  • 工业控制与电机驱动的瞬态保护电路

五、封装与装配建议

  • 封装为SMA,推荐采用标准SMD焊盘和贴片生产工艺,便于高速贴装机拾取与放置。
  • 回流焊兼容常见的无铅回流曲线(建议遵循J-STD-020温度规范),在实际生产中应确保焊接峰值温度与时间控制在器件允许范围内,避免过热造成性能退化。
  • 虽然器件具有较低的正向压降,但在3A连续工作下功耗仍不容忽视:P ≈ Vf × I ≈ 0.85V × 3A ≈ 2.55W。建议在PCB布局时为二极管预留充分的铜箔散热面积(尤其是焊盘与背面散热层)以降低结温并提升可靠性。
  • 对于需要承受高浪涌的应用,应在PCB上优化走线与热量分布,并配合必要的保护元件(如限流、NTC 或吸收器件)。

六、可靠性与使用注意事项

  • 在高温或高散热条件下应进行电流降额,确保结温不超过器件最大额定值(+150℃)。
  • 在实际应用中,若工作脉冲或浪涌频繁,应参考峰值和重复脉冲规定,避免超出Ifsm及平均电流限制。
  • 对于车规或更高可靠性场合,建议在设计中加入电热仿真与寿命评估,并进行必要的热管理与电流裕量设计。
  • 储存与回流焊操作应避免长期潮湿环境,遵循MSKSEMI的包装与焊接建议以防焊接缺陷。

七、选型提示

  • 若系统对正向压降与导通损耗有更高要求,可考虑更低Vf的肖特基器件或并联多只器件分担电流(需评估热均衡)。
  • 若工作电压或浪涌要求更高,应选择更大Vr或更高Ifsm规格的器件。
  • SK36 在60V/3A范畴内提供了较好的性价比与通用性,适合大多数中小功率整流场合。如需替代,注意匹配正向压降、漏电、浪涌与封装尺寸。

总结:SK36(MSKSEMI,SMA封装)以其低正向压降、良好浪涌能力和表贴友好性,为中等功率整流与保护电路提供了可靠的选择。合理的热设计与工作电流管理能够充分发挥其性能并延长系统寿命。

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