WMSIC Electronic Components

Littelfuse SMBJ45A

ModelSMBJ45A
PackageDO-214AA
BrandLittelfuse
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 Electronic Component

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
Littelfuse SMBJ45A
Type
LITTELFUSE
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
LITTELFUSE
Electronic Component
SMBJ45A
Electronic Component
1
Package
DO-214AA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.2g
Electronic Component
1
Electronic Component
BM0258688512
Operating Temperature
65℃~+150℃
Voltage
72.7V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
8.3uA

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:SMBJ45A TVS二极管

一、产品描述

SMBJ45A是一款高性能的瞬态电压抑制(TVS)二极管,专为保护电子设备免受瞬时电压尖峰的影响而设计。作为Littelfuse(美国力特)品牌的重要产品,SMBJ45A具备优良的电子特性和广泛的应用场景,适合用于保护电源线路及敏感电子器件。

二、主要参数

  • 类型:齐纳二极管
  • 单向通道:1
  • 电压 - 反向断态(典型值):45V
  • 电压 - 击穿(最小值):50V
  • 电流 - 峰值脉冲 (10/1000µs):8.3A
  • 功率 - 峰值脉冲:600W
  • 工作温度范围:-65°C ~ 150°C(TJ)
  • 安装类型:表面贴装型
  • 封装/外壳:DO-214AA(SMB)

三、功能特性

SMBJ45A TVS二极管通过其优良的瞬态响应特性,为电路提供高效的保护。它在面对过电压或瞬态干扰(如静电放电(ESD)、浪涌电流等)时,能够快速响应并有效限制电压,从而保护下游组件不受损害。

  1. 反向断态电压(Vr):典型值为45V,能够处理正常工作下的电压情况,为很多低至中等电压应用提供了良好的守护。

  2. 击穿电压(Vbr):在最小值50V的情况下,当电压超过这个值时,TVS二极管会迅速进入击穿状态,确保对电路的保护立马生效。

  3. 电流峰值脉冲能力:8.3A的脉冲电流能力意味着SMBJ45A可以有效应对大电流冲击,适用于高能量的瞬态事件,如电力转换、汽车电子设备等场合。

  4. 峰值功率承受能力:600W的峰值功率确保了其在极端情况下的稳定性和可靠性,能够在瞬态电压尖峰发生时,承受较高的功率而不会失效。

  5. 广泛的工作温度范围:工作温度从-65°C至150°C,确保其能在各种苛刻环境下正常运作,适用于多种工业和汽车应用。

四、应用场景

SMBJ45A TVS二极管广泛应用于多个领域,包括但不限于:

  • 电源保护:对电源线路进行过压保护,防止电压突升对设备造成损害。
  • 通信设备:保护通讯线路不受雷击以及静电放电的影响。
  • 汽车电子:在汽车电子系统中,用于保护车载电子元件和电路。
  • 消费电子:如手机、电视、音响等电子设备,确保用户安全及设备的稳定性。
  • 工业设备:在工业控制系统和机械设备中,防止由于设备磨损或自然环境因素造成的电压波动。

五、封装和安装

SMBJ45A采用DO-214AA(SMB)封装,具有较小的体积与较轻的重量,适合表面贴装技术(SMT)生产工艺,便于自动化大规模生产,节省空间和成本。其封装设计具有优良的热传导和电气特性,能够快速散热,提高可靠性。

六、总结

SMBJ45A TVS二极管不仅具有卓越的电子保护性能和优良的热稳定性,而且在多领域得到了广泛的应用。选择SMBJ45A,不仅能有效地保护电子设备的正常运行,还能提高系统的整体鲁棒性,减少因电压突变而导致的故障,从而提升产品的使用寿命和用户体验。无论是工业设备、消费电子还是汽车电子,SMBJ45A都将是您避免电压尖峰风险的理想选择。

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