WMSIC Electronic Components

SIT SIT1051AQTK/3 SIT1051AQTK

ModelSIT1051AQTK/3
PackageDFN-8(3x3)
BrandSIT
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SIT SIT1051AQTK / 3
Type
SIT
Minimum package
6000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SIT
Electronic Component
SIT1051AQTK/3
Electronic Component
1
Package
DFN-8(3x3)
Type
CAN-FDTransceiver
Electronic Component
CAN Transceiver
Electronic Component
0.313g
Electronic Component
1
Channel Count
1
Features
ESD; TXD; Low Power; Bus
Electronic Component
BM0229963408
Operating Temperature
40℃~+150℃
Operating Voltage
4.5V~5.5V
Operating Current
70mA
Data
5Mbps

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SIT1051AQTK/3 产品概述

一、概述

SIT1051AQTK/3 是芯力特(SIT)推出的一款面向高可靠性网络的 CAN-FD 收发器,专门用于车规及工业级差分总线通信场景。器件支持高达 5 Mbps 的数据速率,工作电压范围 4.5V 至 5.5V,工作温度覆盖 -40℃ 至 +150℃,并采用 DFN-8(3×3 mm)紧凑封装,适合空间受限且需高温可靠性的电子系统。描述状态:未分类(可按具体应用进行进一步功能分级与选型)。

二、主要特性

  • 支持 CAN-FD 总线通信,数据相位速率最高可达 5 Mbps,满足现代实时数据通信需求。
  • 工作电压:4.5V ~ 5.5V,兼容典型 5V 车用和工业系统供电。
  • 工作电流典型值:70 mA(工作态),在总线负载与切换频繁时提供稳定驱动能力。
  • 静态/待机电流:3 mA,便于在低活动期间降低系统总体功耗。
  • 宽温工作范围:-40℃ 至 +150℃,适用于发动机舱、变频器等高温环境。
  • 小型 DFN-8(3×3 mm)封装,配有底部散热焊盘,便于高密度 PCB 布局与热管理。
  • 适合工业与车规级应用,提供可靠的差分驱动、快速响应与电气稳定性。

三、关键电气参数(概览)

  • 器件类型:CAN-FD 收发器
  • 最大数据速率:5 Mbps
  • 供电电压:4.5V ~ 5.5V
  • 工作电流(典型):70 mA
  • 静态电流(典型):3 mA
  • 工作温度:-40℃ ~ +150℃
  • 封装:DFN-8(3×3 mm)

(注:以上参数为主要规格概览,详细电气特性如输出电平、差模/共模抑制、短路与故障保护等请参考厂家完整数据手册。)

四、典型应用场景

  • 汽车电子:发动机控制单元(ECU)、车身控制模块、网关与域控制器,尤其是需要耐高温的发动机舱与动力系统。
  • 工业控制:现场总线节点、伺服驱动器、PLC 网络接口与工业网关,在高温工业柜或机加工环境中表现良好。
  • 轨道与军工:对温度与可靠性要求高的通信线节点与监测系统。
  • 智能传感器与执行器:需要差分长线传输与高数据率的传感器网络。

五、系统设计与布局建议

  • 布局:将收发器尽量靠近车辆/设备的 CAN 接头,缩短差分对走线长度以减少串扰与反射。DFN-8 底部散热垫应焊接到 PCB 大面积接地层以利散热。
  • 终端与滤波:在总线两端采用 120 Ω 差分终端电阻,必要时并联电源与信号端 RC 或 LC 滤波以抑制高频干扰。
  • 瞬态保护:在总线接入口放置 TVS 二极管或浪涌保护器件,以应对雷击、开关瞬态等干扰。
  • 电源去耦:在 VCC 处靠近器件放置 0.1 µF 与 1 µF 陶瓷电容进行高频与中低频去耦,保证开关瞬态时电源稳定。
  • EMC/EMI:差分对配对走线且等长,避免与敏感模拟电路并行走线;必要时使用共模滤波器与屏蔽策略。
  • 热管理:在高温环境下监控 PCB 温升并利用铜箔或散热过孔将热量引导至内层或背面接地铜箔。

六、封装与可靠性

SIT1051AQTK/3 采用 DFN-8(3×3 mm)小型无引脚封装,利于工业化生产与高密度组装。封装底部的裸露散热焊盘(EP)提供良好导热路径,建议贴焊至接地平面并通过过孔与内层铜平面相连以提升散热与电磁兼容性。器件的高温额定(+150℃)表明其在热应力和长期可靠性方面经过设计与验证,适合严苛工作条件。

七、总结

SIT1051AQTK/3 是一款面向车规与工业环境的高温型 CAN-FD 收发器,具备最高 5 Mbps 的数据速率、宽电压工作范围与低静态功耗特性,封装紧凑、易于在高密度电路板上部署。对于需要在高温、高可靠性以及高数据吞吐场景下实现差分总线通信的设计,SIT1051AQTK/3 提供了实用且稳定的解决方案。建议在最终设计前参阅芯力特提供的完整数据手册与应用笔记,以确认所有保护、时序与热管理细节。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

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.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.