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.
0805W8F2001T5E 是 UNI-ROYAL(厚声)出品的一款厚膜贴片电阻,封装规格为0805(2012公制),阻值为2.00 kΩ,精度为±1%。该器件以稳定的温度特性和可靠的焊接性能为特点,适用于各种消费电子、工业控制和通信设备的通用退耦、分压、限流等场合。
功率与电压关系
标称功率为125 mW,这一功率限制决定了在使用时通过器件的电压/电流不得超出所能散热能力。例如要在不超过125 mW 的条件下使用 2 kΩ 电阻,可近似计算允许的最大直流电压:Vmax ≈ sqrt(P·R) = sqrt(0.125 W × 2000 Ω) ≈ 15.8 V。虽然器件额定“工作电压”标称为150 V,但该值表示器件在结构和绝缘上所能承受的最高电压极限,不能与功率约束同时超限使用。实际电路设计时应以功率约束为先,并对工作电压进行必要的降额处理。
温度系数与精度
TCR 为 ±100 ppm/°C,表明温度每变化 1 ℃,阻值约变化 0.01%。在温度变化较大的应用中需考虑总阻值漂移(由TCR与绝对温度变化共同决定),并根据系统容差决定是否需要更低TCR的器件。
环境温度对功率能力的影响
随环境温度升高,器件的热阻和散热条件会导致可承受功率下降。建议在高温环境下按制造商的功率温度衰减曲线进行降额设计,确保长期可靠性。
型号:0805W8F2001T5E;品牌:UNI-ROYAL(厚声);包装形式通常为卷带(Taped Reel),便于SMT自动贴装。订购时请确认所需数量、包装单位、以及是否需要特殊的出厂测试或认证文件(如RoHS 合规声明、可靠性报告等)。
如需更详细的热阻、功率-温度衰减曲线、回流焊工艺参数或样片测试数据,建议联系供应商索取完整数据手册与应用指导。
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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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