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.
一、产品简介
TPSMF4L28A 是一款高性能的齐纳二极管,由美国力特(Littelfuse)公司生产,设计用于在汽车电子和工业应用中提供优越的过电压保护。该器件的最大特点是其高峰值脉冲功率能力,可达400W,适合多种苛刻的工作环境。其独特的封装设计(SOD-123F)确保了极小的占板面积,使其在高密度电路板上应用更为便捷。
二、主要特性
电气参数
温度与环境适应性
封装与安装
电源线路保护: 本产品不提供电源线路保护功能,用户在应用时需结合其他元器件进行整体设计。
三、应用场景
TPSMF4L28A 主要应用于汽车电子和高可靠性设备中。其能承受高电压和大电流的特点,使其在以下场合中表现出色:
四、设计与兼容性
TPSMF4L28A 的设计兼容多种焊接工艺,便于在自动化生产线上进行高效安装。由于其小巧的封装,工程师可以方便地将其集成到设计当中,以实现紧凑型电路的搭建。此外,该器件还具有高可靠性,稳定性出色,能够有效降低系统故障率。
五、总结
作为一款具备高峰值功率及宽工作温度范围的齐纳二极管,TPSMF4L28A 是保护汽车电子、工业设备及其余高科技设备的理想选择。Littelfuse 的专业生产和简便的封装设计,确保了产品在任何严苛的工作环境中都能保持卓越性能。在越来越向电气化、智能化发展的趋势下,TPSMF4L28A 以其卓越的电气特性和可靠的应用表现,成为设计师保护电路的优选方案。
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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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