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.
0402WGF332JTCE 为 UNI-ROYAL(厚声)品牌的贴片厚膜电阻,封装尺寸为 0402(约 1.0 mm × 0.5 mm)。标称阻值 33.2 Ω,阻值精度 ±1%,额定功率 62.5 mW(常温额定值),额定工作电压 50 V,温度系数(TCR)±200 ppm/℃,工作温度范围 -55 ℃ 至 +155 ℃。该器件适用于空间受限、低功耗的电路设计,常见于移动设备、消费电子、测量仪器和各类信号调理电路。
在高温环境下需对额定功率进行降额管理。通常以 +70 ℃ 为基准额定点,超过该温度应线性降额至最高工作温度 +155 ℃ 时为 0 mW。降额计算示例(线性模型): P_allowed = 62.5 mW × (1 - (T - 70) / (155 - 70)) 例如在 +125 ℃ 时,允许功率约为 22 mW(近似值)。实际系统应采用更保守的裕量以提高可靠性。
0402 封装适用于 0402 标准 PCB 焊盘布局(公差依应用与工艺而定)。该尺寸对贴装、焊膏量和回流曲线较敏感,需控制焊膏体积以避免 tombstone 现象或焊接不良。组件耐震动、耐温冲击性能良好,适合常规电子制造工艺。
UNI-ROYAL 产品通常经过焊接可靠性、湿热、温度循环及寿命测试等一系列可靠性验证。建议在关键应用中参考厂方完整的可靠性测试报告,并按 IPC/JEDEC 等行业规范进行样件验证。
如需进一步的电气特性曲线、回流曲线建议或可靠性测试数据(如温度循环、负载寿命曲线),可提供具体应用场景与测试条件,以便给出更精确的工程级建议。
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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.
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