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.
GRM1555C1H7R0CA01D是村田(muRata)推出的0402封装高频精密多层陶瓷电容(MLCC),属于其针对射频、模拟电路优化的C0G系列。核心参数清晰可溯:
型号编码逻辑明确:“C”标识C0G温度特性,“1H”对应50V额定电压,“7R0”表示7pF容值,是村田高频电容的典型参数配置。
C0G温度系数是该电容的核心竞争力——温度范围-55℃~125℃内,容值变化仅±30ppm/℃(即125℃时容值偏差≤0.021pF)。这一特性可避免电路因温度漂移导致的信号失真、阻抗失配,适配高低温交替的极端场景(如户外通信设备、汽车电子)。
±0.25pF的容值精度远高于普通X7R/X5R电容(通常±5%~±10%),适合需要精准匹配的电路(如射频匹配网络、滤波器)。同时,C0G材质的低介质损耗(DF值<0.1%)可减少射频信号能量损耗,提升电路效率(如WiFi 6模块的信号传输)。
额定电压50V(DC)可满足中低压设备的大多数需求:既避免了10V/16V电容的电压冗余,又无需采用体积更大的100V电容,适配小型电源滤波、射频功放偏置等场景。
0402封装的紧凑尺寸(1.0mm×0.5mm)可有效压缩电路板面积,提升便携设备(如智能手表、TWS耳机)的集成度。村田的多层陶瓷工艺确保小体积下容值稳定,无容量衰减问题。
符合IPC标准的贴片封装,焊盘尺寸与间距适配自动化贴装设备(富士、西门子等),可实现高速贴装(速度≥10000颗/小时)。封装公差严格控制:长1.0±0.1mm、宽0.5±0.1mm、厚0.5±0.1mm,与其他0402器件兼容性强。
采用低温共烧陶瓷(LTCC)技术,多层陶瓷介质与镍基内电极共烧而成,无极性设计简化布线。电极优化降低了ESR(等效串联电阻)与ESL(等效串联电感),适合1GHz以上的射频应用(如蓝牙模块的谐振电路)。
支持回流焊、波峰焊(需控制温度≤260℃),符合J-STD-020标准,焊接后可靠性高(无虚焊、脱落问题),适配量产需求。
手机、WiFi 6模块、蓝牙5.3模块的匹配网络、滤波器、谐振器中,该电容的C0G稳定性可确保信号在不同温度下传输损耗一致,±0.25pF精度精准匹配天线阻抗,提升信号覆盖范围(实测可减少10%左右的信号反射)。
运算放大器反馈网络、高精度音频滤波器(如耳机放大器)中,稳定的容值可维持增益与频率特性,避免信号失真(如低噪放电路的噪声系数提升≤0.1dB)。
智能手表、TWS蓝牙耳机、便携医疗设备的小型化电路中,0402封装可压缩电路板体积30%以上,同时满足-20℃~60℃的日常工作温度需求。
工业传感器(温度/压力传感器)的信号调理电路、汽车中控蓝牙模块中,该电容符合AEC-Q200标准(部分批次),可适配宽温(-40℃~85℃)与高可靠性要求。
村田对该型号的测试覆盖:
符合RoHS 2.0(无铅、无镉、无汞)、REACH(SVHC物质限制)标准,可用于出口产品与绿色制造项目。
常见包装为卷带(Reel),每卷3000/10000颗,适配自动化生产;小批量研发可选择托盘包装(100颗/盘)。
该电容凭借C0G的稳定特性、高精度与小体积,成为射频、便携设备与精密电路的优选器件,兼具村田品牌的可靠性保障。
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