Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Q22FA23V00285是爱普生(EPSON)推出的无源贴片晶振,专为需要稳定时钟信号、宽温适应且成本可控的电子设备设计。其核心定位清晰:属于工业级通用型晶振,覆盖12MHz主流频率,适配多类中低端至中端电子系统的时钟源需求,无需额外温补/压控补偿即可稳定工作。
标称频率为12MHz(电子设备最常用时钟频率之一,广泛用于微控制器、通信接口等场景);常温频差**±10ppm**,换算为实际偏差仅±120Hz(12MHz×10×10⁻⁶=120Hz),可覆盖90%以上消费电子、工业控制设备的时钟精度要求。
无源晶振需与外部负载电容匹配才能输出准确频率,本产品指定12pF。需注意:负载电容是晶振两端等效电容(含PCB寄生电容、外接电容),设计时需计算外接电容(通常2个并联到地),使总等效值等于12pF。例如:若PCB寄生电容为2pF,则外接2个20pF电容(串联等效值10pF),总CL=10+2=12pF,保证频率准确。
ESR为100Ω,属于无源晶振合理范围。ESR越小,振荡电路越易起振且稳定性越高;100Ω的ESR可确保-40℃~+85℃范围内,振荡电路增益覆盖损耗,避免停振或漂移。
支持**-40℃+85℃**(超出消费级0℃70℃范围),可适配户外设备(智能电表、安防摄像头)、工业控制模块(PLC、传感器节点)等温度变化大的场景,无需额外温控。
封装为SMD3225-4P:尺寸3.2mm×2.5mm(节省PCB空间),4引脚贴片封装,适合SMT自动化贴装,尤其适配小型化设备(智能手环、物联网终端)。
爱普生是全球晶振龙头,Q22FA23V00285符合工业级标准,经过振动(10g~20g)、冲击(1000g以上)、老化(≤±5ppm/年) 测试,确保5年以上使用周期内频率稳定,降低设备维护成本。
本产品以高性价比、宽温稳定、小型化封装为核心优势,是工业控制、消费电子等领域时钟源的可靠选择。
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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.
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.
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