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Littelfuse SMBJ43A
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse SMBJ43A
- 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
- SMBJ43A
- 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
- BM0000288345
- Operating Temperature
- 65℃~+150℃
- Voltage
- 69.4V
- 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：SMBJ43A
基本信息
SMBJ43A 是 LittelFuse（美国力特）生产的一款表面贴装型瞬态电压抑制器（TVS），其封装形式为 DO-214AA，通常被称为 SMB 封装。该产品专为高电压高速电路保护设计，能够有效抑制瞬态过电压所造成的损害，保证电子设备的可靠性及安全性。
主要参数
- 极性：单向（Unidirectional）
- 峰值脉冲电流（10/1000µs）：8.7A
- 箝位电压：69.4V
- 击穿电压（最小值）：47.8V
- 反向关断电压（典型值）：43V
- 功率 - 峰值脉冲：600W
- 工作温度范围：-65°C 至 150°C（TJ）
- 封装类型：SMB（DO-214AA）
功能与应用
SMBJ43A 主要用于电力系统、通信设备、计算机、医疗设备以及汽车电子等领域，能够有效保护电路免受雷击、电源浪涌以及其他外部瞬态干扰的影响。它的使用可以显著降低因过压导致的设备损伤，保护关键电路和元件，从而提高整体系统的稳定性和安全性。
该器件以其高达 8.7A 的峰值脉冲电流承载能力，能够有效抵御瞬态信号的冲击，而其高达 69.4V 的箝位电压则确保在雷电或浪涌情况发生时，能够快速而精确地限制电压，保护后端电路不受高电压影响。
性能特征
SMBJ43A 的表面贴装封装设计使得其在现代自动化生产及设备小型化方面具备优越性能。其适应宽广的工作温度范围（-65°C 至 150°C）使其能够在恶劣环境下稳定工作。与传统的插装式元件相比，SMBJ43A 提供更高的稳定性和更低的封装高度，减少了在电路板上的占用空间。
设计用注意事项
在设计使用 SMBJ43A 时，工程师需确保其工作电压始终低于其反向关断电压（43V），以防止设备因过电压而损坏。同时，应根据具体应用需求选择适合的配套元件，以确保瞬态电压抑制器能够在实际工作环境中发挥最佳性能。
结论
综上所述，SMBJ43A 是一款性能可靠、应用广泛的瞬态电压抑制器，适合用于各类电子设备中的电源保护。其高的峰值脉冲电流承载能力与有效的电压限幅特性，使其成为当今电子设计中不可或缺的元件之一。通过使用 SMBJ43A，可以有效提升设备的耐用性，防止由于瞬态电压引发的故障，从而在激烈的市场竞争中保持企业产品的竞争优势。
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