WMSIC Electronic Components

LGE 1SMA4742A

Model1SMA4742A
PackageDO-214AC(SMA)
BrandLGE
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LGE 1SMA4742A
Type
LGE
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LGE
Electronic Component
1SMA4742A
Electronic Component
1
Package
DO-214AC(SMA)
Electronic Component
Zener Diode
Electronic Component
0.1g
Electronic Component
1
(Zzt)
9Ω
Electronic Component
BM0219836534
Diode
1
Current(Ir)
5uA@1V
Power Dissipation(Pd)
1W
Electronic Component
11.4V~12.6V
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component

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

产品概述:SMA4742A 稳压二极管

概述

SMA4742A是一款独立式稳压二极管,主要用于电压稳定和过压保护。该产品由知名电子元器件制造商LGE(鲁光)生产,具有高稳定性的电压输出特性。其典型稳压值为12V,适合广泛的电子应用场合,确保电路工作在安全和有效的电压范围内。

主要参数

  • 稳压电压(Vz): 12V
  • 工作电压范围: 11.4V~12.6V
  • 漏电流(Iz): 5μA @ 9.1V
  • 封装类型: DO-214AC (SMA)

特性

SMA4742A稳压二极管在设计上具备以下特性:

  1. 高精度稳压:在额定工作条件下,SMA4742A提供非常稳定的电压输出,使其在电源管理和信号调理中表现优异。
  2. 低漏电流:该器件在9.1V时的漏电流仅为5μA,适合于对功耗要求严格的低功耗应用。
  3. 宽工作电压范围:11.4V至12.6V的工作电压范围使得SMA4742A在多种电源设计中具有灵活的适应性。
  4. 热稳定性:稳压二极管的设计考虑到了热稳定性,能够在高温环境下稳定工作,提升组件的可靠性和安全性。
  5. 封装:采用DO-214AC(SMA)封装,体积小且易于焊接,适合自动化生产线,提高了生产效率。

应用场景

SMA4742A广泛应用于以下领域:

  1. 电源管理:用于电源电路中,提供稳定的输出电压,以防止输入电压波动对电路的影响。
  2. 信号调理:在信号处理电路中,作为一部分来确保信号在一定电压下工作,避免因过压导致的信号失真。
  3. 电池供电设备:在便携式设备中,SMA4742A可用于限制电池电压,保护电路免受电池电压升高的影响。
  4. 电器保护:在家用电器中,作为过压保护措施,确保电子元件不会因电压异常而故障。
  5. LED驱动:在LED驱动电路中,为LED提供所需的稳压电源,避免过压损坏LED元件。

性能优势

SMA4742A稳压二极管所具备的性能优势使其成为许多电子设计的首选组件。其低漏电流特点不仅降低了能耗,而且增加了整体电路的效率。同时,具备良好的热稳定性使其在各种温度条件下均能可靠运行。鲁光品牌,作为行业内知名厂商,其产品质量和技术支持也为客户提供了更多的信心。

结论

总体而言,SMA4742A稳压二极管是一款理想的电子元器件,适用于多种电源管理和电压稳压的应用场景,其优异的性能、低功耗和可靠性使其在市场中占据了一席之地。无论是工业应用还是消费电子产品,SMA4742A都能够为设计工程师提供稳定且高效的解决方案,是现代电子设计中不可或缺的组成部分。

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.