Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SS320B是晶导微电子推出的一款中功率肖特基势垒整流二极管,采用SMB(DO-214AA)贴片封装,针对低功耗、小型化电源设计需求优化,兼顾电气性能与可靠性,适用于多种工业及消费电子场景。
作为肖特基二极管家族的成员,SS320B的设计核心在于平衡正向压降与反向耐压:通过优化势垒层工艺,在200V反向耐压下实现950mV的低正向压降(@3A工作电流),相比同耐压等级的快恢复二极管,导通损耗降低约30%;同时支持3A连续整流电流与80A非重复浪涌电流,满足中小功率设备的瞬间冲击需求。
SS320B的正向压降为950mV@3A,属于同功率肖特基二极管的优异水平:在3A连续工作电流下,单管导通损耗仅约2.85W(P=I×Vf),可有效减少电源系统的热损耗,降低散热设计成本。此外,正向压降随电流变化的斜率平缓,大电流下(如接近浪涌峰值)压降增量可控,避免局部过热。
反向耐压(Vr)为200V,覆盖多数AC-DC适配器、LED驱动电源的输出级反向电压需求;反向漏电流(Ir)仅300uA@200V,远低于普通整流管的漏电流水平,可减少待机功耗,提升电源效率。
SS320B采用SMB(DO-214AA)贴片封装,具有以下特点:
适用于12V48V输出的中小功率开关电源(如笔记本适配器、LED球泡灯驱动),肖特基二极管的快速恢复特性(无反向恢复时间)可减少开关损耗,提升电源效率(通常可使效率提升1.5%2.5%)。
在DC-DC转换器(如Buck/Boost电路)、电机驱动电路中,SS320B可作为续流二极管,低正向压降减少续流损耗,同时高浪涌能力可应对电机启动时的瞬间电流冲击。
宽结温范围与200V反向耐压,使其可用于户外LED显示屏电源、车载充电器等场景,适应温度变化与电压波动。
如智能音箱、路由器的电源模块,SMB封装节省PCB空间,同时低漏电流降低待机功耗,提升产品续航(若为电池供电设备)。
SS320B凭借低功耗、高可靠性与小型化封装,成为中小功率电源设计的优选器件,可满足多数消费电子与工业场景的整流需求。
Request for quote
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products