WMSIC Electronic Components

Littelfuse SMBJ51CA

Littelfuse SMBJ51CA
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Product image

ModelSMBJ51CA
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 26+

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Technical data

Product details

20 specifications

Core information

Product name
Littelfuse SMBJ51CA
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
SMBJ51CA
Electronic Component
1
Package
DO-214AA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.21g
Electronic Component
1
Electronic Component
BM0000000409
Operating Temperature
65℃~+150℃
Voltage
82.4V
Electronic Component
IEC 61000-4-4；IEC 61000-4-2
Current(Ir)
1uA

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：SMBJ51CA TVS二极管

一、产品背景

在现代电子设备中，电磁干扰和瞬态电压的影响日益显著，尤其在通信、汽车电子、工业控制和消费电子等领域。为保护敏感设备免受电压尖峰和彩电瞬态效应的影响，过压保护器件尤为关键。SMBJ51CA是由美国力特（Littelfuse）公司开发的一款双向瞬态电压抑制（TVS）二极管，专为保护电路及其组件设计，能够轻松应对各种负载和环境条件。

二、主要特性

  1. 双向设计：SMBJ51CA采用双向结构，能够同时对正向和反向过压进行抑制，适合各种电源线和信号线的保护应用。

  2. 峰值脉冲电流：该产品的峰值脉冲电流为7.3A（10/1000µs），意味着在高能瞬态情况下，SMBJ51CA可以有效地引导多达7.3A的脉冲电流，确保设备的安全性。

  3. 箝位电压：在电流达到峰值时，SMBJ51CA的箝位电压为82.4V，这一数值确保了器件能在瞬态事件中限制电压，避免对下游元件造成潜在的损坏。

  4. 击穿电压：其最小击穿电压为56.7V，通常在应用中，不同设备的正常工作电压都低于此值，确保了其有效的过压保护能力。

  5. 反向关断电压：典型的反向关断电压为51V，保证在正常工作条件下，器件不对电路产生任何不必要的导通。

  6. 功率能力：产品具有600W的峰值脉冲功率能力，能够处理瞬态电压器件产生的高能量。

  7. 工作温度范围：SMBJ51CA的工作温度范围为-65°C到150°C，适应各种极端环境，可在高温或低温条件下稳定运行。

  8. 封装类型：该器件采用DO-214AA封装，也称为SMB封装，具有表面贴装型（SMD）设计，便于自动化生产和高密度电路板组装。

三、应用领域

SMBJ51CA TVS二极管广泛应用于以下领域：

  • 通信设备：在电话、交换机、调制解调器等通信线路中，防止雷击、静电瞬态和电源抖动。

  • 汽车电子：为车载电子设备提供过压保护，确保安全可靠的运行，防止供电系统出现异常。

  • 消费电子产品：在电视、手机、平板电脑等设备中，防止由于外部电压波动造成的损坏。

  • 工业控制：保护PLC、传感器和执行器等工业控制设备免受瞬态电压影响。

四、总结

作为一种高性能的瞬态电压抑制器件，SMBJ51CA TVS二极管以其优秀的电气性能、广泛的应用领域及良好的环境适应性，为各种电子设备的过压保护提供了可靠的解决方案。它在设计中的双向特性及高峰值脉冲电流承载能力，使其成为保护电路和设备的重要组成部分。在日益复杂的电子环境中，利用SMBJ51CA有效隔离过压风险，将是确保电子设备长久和稳定运行的明智选择。选择力特的SMBJ51CA，不仅是保护设备，更是为设备的安全与可靠性保驾护航。

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