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.
CRCW0805240RFKEA是VISHAY(威世) 旗下CRCW系列的0805封装厚膜贴片电阻,作为工业与消费电子领域的通用型被动元件,以平衡的性能、宽温适应性和可靠质量,成为240Ω阻值场景的常用选择。以下从核心信息、性能参数、应用场景等维度展开概述:
该型号隶属于威世经典厚膜贴片电阻系列,品牌为全球被动元件龙头VISHAY,封装采用行业通用的0805(英制) 规格(对应公制2012,尺寸2.0mm×1.2mm),属于表面贴装(SMT)器件,适配高密度PCB设计需求。
标称阻值为240Ω,精度达**±1%**——这一精度属于“商业级+”范畴,既满足大多数电路对阻值偏差的控制要求(如分压电路、电流采样),又避免了精密电阻(±0.1%)的高成本,适合中大规模批量应用。
额定功率为125mW(0.125W),最大工作电压150V——功率符合0805封装的常规功率等级,150V电压上限可覆盖5V、12V、24V等主流低压系统,即使在峰值电压下(如电源浪涌)也能保证安全运行(需注意实际功耗不超过额定值,例如24V电压下功耗为24²/240=2.4W,远超额定值,需降额使用)。
温度系数为**±100ppm/℃**(与±100ppm/K等价)——表示温度每变化1℃,阻值变化±0.01%,这一参数对于环境温度波动较大的场景(如户外设备、汽车发动机舱)至关重要,能有效减少温度对电路性能的影响。
0805封装体积小巧,仅2.0mm×1.2mm,适配智能手机、路由器、工业控制器等对空间要求严格的产品,支持回流焊、波峰焊等主流SMT工艺,焊接兼容性好。
工作温度覆盖**-55℃+155℃**,远超常规商业级电阻(-40℃+85℃),可满足高温环境(如工业烤箱、汽车电子)或低温环境(如户外通信设备)的使用需求。
厚膜电阻采用“陶瓷基板+厚膜电阻浆料+金属电极”结构,具有较好的耐湿性、耐腐蚀性;威世的生产工艺进一步保证了长期使用中的阻值漂移小(典型长期漂移≤0.5%),适合对可靠性要求较高的场景。
结合性能参数,该电阻的核心应用场景包括:
CRCW0805240RFKEA以其稳定的性能、宽温适应性和合理的成本,成为240Ω阻值场景下的高性价比选择,广泛适配工业、消费电子等多领域需求。
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