Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
LRC SM140A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LRC SM140A
- Type
- LRC
- Minimum package
- 7500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LRC
- Electronic Component
- SM140A
- Electronic Component
- 1
- Package
- DO-214AC(SMA)
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.105g
- Electronic Component
- 1
- Electronic Component
- BM0004114763
- Current
- 1A
- Diode
- Electronic Component
- Current(Ir)
- 500uA@40V
- (Vf)
- 500mV
- Electronic Component
- 40℃~+125℃
- Electronic Component
- Electronic Component
- Electronic Component
- 7500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SM140A 产品概述
产品名称：SM140A
类型：肖特基二极管
封装：独立式（DO-214AC/SMA）
最大正向电流：1A
最大反向电压：40V
正向电压降：500mV
品牌：LRC（乐山无线电）
一、产品简介
SM140A 是一款高效能的肖特基二极管，专为各种电子应用设计，尤其适合于需要高开关速度和低电压降的场合。作为一种独立封装的器件，SM140A 提供了良好的热管理和可靠性，适合各种现代电子电路需求。
二、肖特基二极管概述
肖特基二极管因其独特的结构和性能优势而在电子电路中被广泛应用。与传统的PN结二极管相比，肖特基二极管具有更低的正向电压降和更快的切换速度，这使得其在高频和高效率转换中表现尤为出色。
三、主要特性
低正向电压降：SM140A 的正向电压降仅为500mV，这意味着在工作时能有效减少功耗，提高电能转换效率。这一点在电源管理和变换器等应用中尤为重要。
耐压能力：此款二极管具有最高40V的反向耐压能力，能够满足常见低压直流供应和交换设备的需求，适用于车载、家电和工业设备等多个领域。
高正向电流：最大1A的正向电流能力使得 SM140A 可以承受大多数常规应用的电流需求，尤其是适合需要较高负载的电路设计。
快速开关特性：肖特基二极管的浩快开关特性使得 SM140A 在高频切换应用中表现优良，比如开关电源、整流以及反激式变换器等。
良好的热性能：SMA 封装设计不仅体积较小，还能有效散热，确保器件在高负载及高温情况下稳定工作。
四、应用场景
开关电源：在DC-DC转换器中，SM140A 可用作整流和逆变器，减少开关损耗，提高整体转换效率。
电池充电器：该肖特基二极管非常适合用在锂电池充电器中，它的低正向电压降可以提高充电效率，并有效延长电池的使用寿命。
LED驱动电路：由于其快速响应和高效能，SM140A 在LED驱动电路中能有效提升主动元件的性能，确保全范围光效。
电子保护电路：可以用于保护电路中的反向电流保护，防止设备在误接情况下受到损伤。
五、产品优势
- 高效率：通过降低功耗，SM140A 能够在提升系统整体效率的同时，保持稳定的工作状态。
- 灵活应用：广泛的工作电压和电流范围使得 SM140A 能够适应不同的设计需求，方便系统集成。
- 可靠性：LRC 品牌在电子元器件行业内享有良好的声誉，产品经过严格的质量检测，确保其在不同工作条件下的可靠性。
六、结论
SM140A 肖特基二极管以其出色的性能和多样化的应用场景，成为现代电子设计中不可或缺的元器件之一。无论是在功率管理、电子保护还是高频应用中，SM140A 都能提供稳定的表现和高效的解决方案，为用户的项目需求提供强有力的支持。通过选用 SM140A，设计师能够提升整个系统的性能，降低能耗，推动绿色科技的发展。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
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.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
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.
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
Packaged components ready for RFQ.
