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.
华新科(Walsin)作为全球无源电子元件领域的知名厂商,其推出的WR04X22R0FTL是一款针对高密度电路设计优化的0402封装厚膜片式电阻。该产品凭借稳定的电气性能、紧凑的体积及宽温适应性,成为消费电子、工业控制等领域的常用基础元件,兼顾成本与性能平衡。
WR04X22R0FTL属于华新科厚膜电阻系列,型号编码明确其核心特征:
该产品定位于中精度、小功率、宽温域的基础无源元件,适配对体积敏感且需稳定阻值的电路设计,是批量应用的高性价比选择。
标称阻值22Ω,精度±1%,属于工业级常用精度等级。相比±5%的通用电阻,其阻值偏差更小,可满足信号调理、分压网络、限流保护等对阻值稳定性要求较高的场景(如电池电量检测电路的分压比精度需求)。
额定功率62.5mW(即1/16W),是0402封装电阻的典型功率等级。实际使用需注意:功率需同时满足P=I²R≤62.5mW,计算得最大允许电流约53.3mA(√(62.5mW/22Ω));若仅看工作电压50V,直接施加50V会导致功率超113mW(50²/22≈113mW),需结合电路工况平衡电压与电流。
封装为0402(公制1.0×0.5mm),是贴片电阻中体积最小的主流封装之一,适配高密度PCB设计(如智能手机主板、智能手表传感器模块)。厚膜工艺的优势在于:
华新科对该产品完成多项测试:
综上,WR04X22R0FTL凭借紧凑体积、稳定性能与宽温适应性,成为高密度电路设计的可靠选择,广泛适配消费电子、工业控制等领域的基础电阻需求。
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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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