WMSIC Electronic Components

Jingdao Microelectronics 1SMA4729A

Model1SMA4729A
PackageSMA
BrandElectronic
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic 1SMA4729A
Type
Jingdao Microelectronics
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
1SMA4729A
Electronic Component
1
Package
SMA
Electronic Component
Zener Diode
Electronic Component
0.12g
Electronic Component
1
(Zzt)
10Ω
Electronic Component
BM0219900988
Diode
1
Current(Ir)
100uA@1V
Power Dissipation(Pd)
1W
Electronic Component
3.4V~3.8V
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:SMA4729A 稳压二极管

一、基本信息

SMA4729A 是由晶导微电子公司推出的一款稳定性良好的稳压二极管,广泛用于各种电子设备的电源管理和过压保护。该产品的主要特性包括其独立式结构、稳压值为3.6V,以及宽广的工作电压范围(3.4V - 3.8V),在1V时具有100µA的漏电流。产品采用经典的SMA封装形式,兼具小巧和良好的热性能,适应于多种应用场景。

二、技术规格

  • 品牌: 晶导微电子
  • 产品类型: 稳压二极管
  • 稳压值: 3.6V
  • 工作电压范围: 3.4V 至 3.8V
  • 漏电流: 100µA(在1V时测得)
  • 封装类型: SMA

三、功能与应用

稳压二极管的主要功能是提供稳定的电压,对敏感的电路进行保护。在电路中的具体应用,SMA4729A 主要包括:

  1. 电源管理: 在电源线路中,当输入电压超过设定的稳压值时,二极管会导通,从而限制电压,起到电压稳压的作用,确保后续电路的正常工作。

  2. 过压保护: 在各种设备中,稳压二极管可以用作过压保护元件,防止突发的高电压损坏电子元件,尤其在电源及信号线中非常常见。

  3. 调节电源电压: 在一些需要稳定电压供电的设备中,可以与其他元器件组合使用,实现更高精度的电压调节。

  4. 滤波和去耦: 该稳压二极管可以与电容器并联使用,有效滤除电源线上的高频噪声,改善电源质量,对电源进行有效的去耦处理。

四、封装与散热性能

SMA4729A 的SMA封装形式不仅提供了较小的占地面积,还具有优异的散热性能。由于其在设计时就考虑了与其他元件的兼容性,能够与多种电路板设计相适应,便于集成。小型而功能强大的设计,使得它在空间受限的应用中,仍然可以高效运作。

五、选型与兼容性

在选择稳定二极管时,设计师需要根据实际应用环境和要求,考虑额定电流、工作温度和封装形式等因素。SMA4729A 由于其标准化的设计,可以无缝嵌入多种电子设备中,兼容性强。市场上也有多款性能相近的稳压二极管可供选择,设计师应结合具体需求进行综合比较,选择最适合的产品。

六、总结

SMA4729A 稳压二极管凭借其优良的电压稳定性和适用性,成为了各类电子产品中的重要组成部分。其独立式设计和SMA封装使得其在小型化和高效能电路设计中具有不可替代的优势。了解和掌握其特性,有助于设计师和工程师更好地运用该元件,在更广泛的电子应用中实现更稳定和可靠的电压控制。

无论是在消费电子、工业设备,还是在医疗和无人机等特殊领域,SMA4729A 都显示出良好的市场前景和应用价值。对其深入理解,将有助于提高电子产品的整体性能与可靠性。

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.