WMSIC Electronic Components

LGE 1SMA4746A

Model1SMA4746A
PackageSMA(DO-214AC)
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LGE 1SMA4746A
Type
LGE
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LGE
Electronic Component
1SMA4746A
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Zener Diode
Electronic Component
0.1g
Electronic Component
1
(Zzt)
20Ω
Electronic Component
BM0257672021
Diode
1
Current(Ir)
5uA@1V
Power Dissipation(Pd)
1W
Electronic Component
17.1V~18.9V
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.

1SMA4746A 产品概述

1. 产品简介

1SMA4746A 是一款由 LGE(鲁光)公司生产的稳压二极管,采用独立式配置,封装形式为 SMA(DO-214AC)。该器件主要用于电路中的电压稳定和保护,具有高可靠性和优异的电气性能,广泛应用于电源管理、通信设备、工业控制等领域。

2. 主要特性

  • 稳压值(标称值):18V
    该稳压二极管的标称稳压值为 18V,能够在电路中提供稳定的电压输出,确保后续电路的正常工作。

  • 稳压值范围:17.1V ~ 18.9V
    实际稳压值在 17.1V 到 18.9V 之间,具有一定的容差范围,适用于对电压精度要求较高的应用场景。

  • 反向电流(Ir):5μA @ 13.7V
    在反向电压为 13.7V 时,反向电流仅为 5μA,表明该器件在反向偏置时具有极低的漏电流,能够有效减少功耗。

  • 功率(Pd):1W
    最大功耗为 1W,能够承受较高的功率负载,适用于中等功率的电路设计。

  • 阻抗(Zzt):20Ω
    动态阻抗为 20Ω,表明该器件在稳压状态下具有较低的阻抗,能够提供较为稳定的电压输出。

  • 封装形式:SMA(DO-214AC)
    采用 SMA 封装,体积小巧,适合高密度 PCB 布局,同时具有良好的散热性能。

3. 应用领域

1SMA4746A 稳压二极管广泛应用于以下领域:

  • 电源管理:用于稳压电源、开关电源等电路中,确保输出电压的稳定性。
  • 通信设备:在通信设备的电源模块中,提供稳定的电压,保护敏感元件免受电压波动的影响。
  • 工业控制:在工业自动化设备中,用于电压调节和电路保护,提高系统的可靠性。
  • 消费电子:在各类消费电子产品中,如电视机、音响设备等,用于稳压和保护电路。

4. 产品优势

  • 高可靠性:LGE(鲁光)作为知名品牌,产品质量可靠,经过严格的质量控制和测试,确保在各种应用场景下的稳定表现。
  • 低反向电流:反向电流仅为 5μA,能够有效减少功耗,延长设备的使用寿命。
  • 宽稳压范围:稳压值范围在 17.1V 到 18.9V 之间,适用于对电压精度要求较高的应用。
  • 小封装:采用 SMA 封装,体积小巧,适合高密度 PCB 布局,同时具有良好的散热性能。

5. 技术参数

参数名称参数值
稳压值(标称值)18V
稳压值范围17.1V ~ 18.9V
反向电流(Ir)5μA @ 13.7V
功率(Pd)1W
阻抗(Zzt)20Ω
封装形式SMA(DO-214AC)
品牌LGE(鲁光)

6. 使用注意事项

  • 工作温度:在使用时,应注意器件的工作温度范围,避免超过规定的温度极限,以免影响性能和寿命。
  • 反向电压:虽然该器件具有较低的反向电流,但仍需注意反向电压的施加,避免超过最大反向电压,以免损坏器件。
  • 散热设计:在较高功率的应用中,应合理设计散热措施,确保器件的温度在安全范围内。

7. 总结

1SMA4746A 是一款性能优异的稳压二极管,具有稳定的电压输出、低反向电流和高可靠性等特点,广泛应用于电源管理、通信设备、工业控制等领域。其小巧的封装和良好的散热性能,使其成为高密度 PCB 布局的理想选择。LGE(鲁光)作为知名品牌,确保了产品的高质量和可靠性,是工程师在设计电路时的优选器件。

通过合理的设计和使用,1SMA4746A 能够为各类电子设备提供稳定的电压保护,确保系统的正常运行和长期可靠性。

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