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
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HRE(芯声)CGA0402C0G390J500GT是一款Class 1型多层陶瓷电容(MLCC),专为小型化、高稳定性电子电路设计。其型号各部分含义清晰:
容值39pF,精度±5%(J档),满足通用电路的滤波、耦合、匹配需求——既避免过高精度带来的成本冗余,又能覆盖大多数中低端射频、通信电路的容值偏差要求。
C0G属于Class 1陶瓷电容,温度系数≤±30ppm/℃,容值随温度(-55℃~+125℃)变化极小(典型值<0.1%)。该特性使其成为射频(RF)、振荡器、高精度滤波器的首选,避免温度波动导致的电路性能漂移。
直流额定电压50V,实际应用需遵循80%降额原则(即最大工作电压≤40V DC);交流电压需进一步降额(AC峰值≤20V,约为DC额定电压的40%),防止介质击穿或漏电流增大。
MLCC的多层结构赋予其低等效串联电阻(ESR)和低等效串联电感(ESL),C0G类更是在1GHz以上频段仍保持稳定容值,适合WiFi、蓝牙、5G sub-6GHz等高频应用。
体积小巧(1.0mm×0.5mm×0.5mm典型高度),适配便携式设备(手机、智能手表)、小型化模块(路由器、传感器) 的高密度贴装,支持0201/0402混贴的自动化生产。
该产品平衡了小型化、稳定性与成本,是通用电子电路中39pF容值的高性价比选择,尤其适合对温度稳定性要求较高的射频与通信场景。
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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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