WMSIC Electronic Components

MDD 1SMA4749A

Model1SMA4749A
PackageSMA
BrandMDD
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MDD 1SMA4749A
Type
MDD
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
1SMA4749A
Electronic Component
1
Package
SMA
Electronic Component
Zener Diode
Electronic Component
0.094g
Electronic Component
1
(Zzt)
25Ω
Electronic Component
BM0227798508
Diode
1
Current(Ir)
5uA
Power Dissipation(Pd)
1W
Electronic Component
22.8V~26V
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.

1SMA4749A 产品概述

1. 产品简介

1SMA4749A 是一款由 MDD 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。其标称稳压值为 24V,稳压范围在 22.8V 至 26V 之间,适用于多种电子设备和系统中。

2. 主要特性

  • 稳压值(标称值): 24V
  • 稳压值(范围): 22.8V ~ 26V
  • 反向电流 (Ir): 5μA @ 18V
  • 功率 (Pd): 1W
  • 阻抗 (Zzt): 25Ω
  • 封装: SMA(DO-214AC)
  • 配置: 独立式

3. 应用领域

1SMA4749A 稳压二极管广泛应用于以下领域:

  • 电源管理: 用于稳定电源输出电压,防止电压波动对电路造成损害。
  • 电子设备保护: 在电路中作为过压保护元件,防止因电压过高而损坏敏感元件。
  • 通信设备: 用于通信设备中的电压调节和保护,确保设备稳定运行。
  • 工业控制: 在工业控制系统中,用于稳定控制电压,提高系统的可靠性。

4. 电气特性

  • 反向电流 (Ir): 在 18V 反向电压下,反向电流仅为 5μA,表现出极低的漏电流特性。
  • 功率耗散 (Pd): 最大功率耗散为 1W,适用于中等功率应用。
  • 阻抗 (Zzt): 动态阻抗为 25Ω,表明在稳压范围内,电压变化对电流的影响较小。

5. 封装与尺寸

1SMA4749A 采用 SMA(DO-214AC) 封装,这种封装形式具有以下优点:

  • 小型化: 体积小,适合高密度 PCB 布局。
  • 高可靠性: 采用优质材料,确保在恶劣环境下仍能稳定工作。
  • 易于焊接: 封装设计便于自动化焊接,提高生产效率。

6. 品牌与质量保证

MDD 公司作为知名的电子元器件制造商,以其高质量和可靠性著称。1SMA4749A 稳压二极管经过严格的质量控制和测试,确保在各类应用中表现出色。

7. 使用注意事项

  • 工作温度: 确保器件在规定的温度范围内工作,避免过热导致性能下降或损坏。
  • 焊接条件: 遵循推荐的焊接温度和时间,防止封装损坏。
  • 电路设计: 在电路设计中考虑器件的功率耗散和散热条件,确保长期稳定运行。

8. 结论

1SMA4749A 稳压二极管以其优异的电气性能、高可靠性和广泛的应用领域,成为电子工程师在设计电源管理和电路保护时的理想选择。其小型化封装和易于焊接的特点,进一步提升了其在现代电子设备中的适用性。无论是通信设备、工业控制系统还是消费电子产品,1SMA4749A 都能提供稳定的电压保护和高效的性能表现。

通过以上概述,可以看出 1SMA4749A 稳压二极管在电子元器件中的重要地位和广泛应用前景。选择 MDD 的 1SMA4749A,将为您的电子设计提供可靠的电压稳定和保护解决方案。

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