Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
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1SS300,LF(T)是东芝推出的1对串联式开关二极管,定位于小信号高速开关应用场景。作为开关二极管,其核心优势在于超高速反向恢复特性,可满足高频电路、高速逻辑系统对开关速度的严苛要求;串联式结构则优化了双向开关性能,适配更多电路拓扑。该产品广泛适用于便携式电子设备、射频电路、高速数字逻辑、信号保护等领域,是小信号开关电路的高性价比选择。
1SS300,LF(T)的电气参数围绕“高速开关”和“低损耗”核心设计,关键参数及意义如下:
反向恢复时间是开关二极管从导通切换到截止的核心指标,1.6ns的超短trr意味着器件可在极短时间内完成开关切换,大幅降低高频应用中的开关损耗,避免信号失真,适合100MHz以上的高速电路(如射频前端、高速计数器)。
反向漏电流反映器件截止状态下的漏电情况,500nA的极低漏电流可有效减少反向功耗,同时避免漏电流对敏感电路(如精密模拟电路、低功耗数字电路)的信号干扰,提升电路稳定性。
在额定正向电流100mA下,正向压降为920mV,处于小信号开关二极管的典型范围——既保证导通状态下的低损耗(避免过多功率消耗),又与超高速trr实现性能平衡(若追求更低Vf可能牺牲开关速度)。
采用1对二极管串联结构,可实现双向开关功能(避免单向二极管的反向截止局限),或通过串联提升整体反向耐压(单管耐压叠加),适配双向信号钳位、双向续流等电路拓扑。
1SS300,LF(T)采用SOT-323封装(表面贴装型),物理尺寸紧凑(典型尺寸:2.9mm×2.4mm×1.1mm),具有以下优势:
作为东芝(TOSHIBA)旗下产品,1SS300,LF(T)继承了品牌的高可靠性优势:
结合1SS300,LF(T)的参数特性,其典型应用场景包括:
综上,1SS300,LF(T)凭借超高速开关特性、低漏电流、紧凑封装及东芝品牌可靠性,成为小信号高速开关应用的理想选择。
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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.
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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.
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