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.
SIT1043QTK 是芯力特(SIT)推出的一款基于 CAN-FD 的收发器,面向车载和工业现场总线应用。器件工作电压范围为 4.5V 至 5.5V,支持最高 5 Mbps 的数据传输速率,工作温度覆盖 -40℃ 至 +125℃,适应严苛环境。封装采用 DFN 4.5 x 3-14,适合紧凑 PCB 布局与自动化贴装。
SIT1043QTK 在 5 V 电源下工作时,典型工作功耗约为 0.325 W(5 V × 65 mA),在散热设计和 PCB 热回流上需考虑该功耗带来的温升。静态电流仅 4 μA,适合实行低功耗策略的系统,便于在空闲时降低整车或设备的待机功耗。
器件额定工作温度到 +125℃,适合车规级或高温工业环境使用。设计时需评估在最大环境温度与最高工作电流情况下的结温,必要时通过铜厚、散热铜箔或通孔散热方式降低结温,保证器件长期可靠性。
SIT1043QTK 提供了面向 5 V 系统的 CAN-FD 差分收发能力,兼顾高带宽传输(5 Mbps)与低功耗休眠(4 μA),并以 DFN4.5x3-14 紧凑封装利于现代 PCB 设计。其性能与温度等级使之在汽车与工业现场总线等对可靠性与带宽有较高要求的应用中具有竞争力。建议在产品开发初期结合实际系统拓扑与 EMC 要求做综合验证,以发挥器件最佳性能。
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