WMSIC Electronic Components

Littelfuse SMF12A

ModelSMF12A
PackageSOD-123FL
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+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
Littelfuse SMF12A
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
SMF12A
Electronic Component
1
Package
SOD-123FL
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.036g
Electronic Component
1
Electronic Component
BM0000288355
Operating Temperature
65℃~+150℃
Voltage
19.9V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
2.5uA
Voltage(VBR)
14.7V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMF12A 产品概述

一、产品简介

SMF12A 是一款高性能的瞬态电压抑制二极管(TVS Diode),专为保护敏感电子器件免受电压浪涌和瞬态过电压影响而设计。作为二极管中常用的一种,SMF12A 具有单向通道特性,能够有效地将过电压限制在安全范围内,从而保护接入的电子元件不受损坏。此产品广泛应用于通信设备、工业控制、消费电子及其他需要电源保护的场合。

二、关键参数

  1. 极性: SMF12A 为单向二极管,适用于需要反向电压保护的电路设计。

  2. 击穿电压: Minimum breakdown voltage is 13.3V, which ensures that the diode remains non-conductive under normal operating conditions but will activate during an over-voltage situation.

  3. 反向关断电压: The typical reverse stand-off voltage is 12V, which marks the maximum direct voltage that can be applied to the diode without experiencing conduction.

  4. 箝位电压: This device exhibits a clamp voltage of 19.9V while conducting a peak pulse current, ensuring excessive voltages can be suppressed to a safe level.

  5. 峰值脉冲电流: Capable of withstanding a peak pulse current of up to 10.1A for a duration of 10/1000µs, the SMF12A offers robust performance under transient conditions.

  6. 功率: This device can handle a peak power dissipation of 200W during transient events, making it suitable for environments with abrupt electrical surges.

  7. 封装类型: SMF12A 采用 SOD-123F 封装,具有较小的尺寸和优良的表面贴装特性,便于高密度电路板的布局。

三、应用场景

SMF12A 适用于多种应用场合,包括但不限于:

  • 通信设备: 保护线路中的敏感元件免受电压瞬变的影响,保障信号的稳定传输。
  • 工业控制系统: 在电机驱动器和控制系统中,为电源线路提供可靠的保护。
  • 消费电子产品: 在手机、平板、家电等消费电子中,保护内部电路不受高电压冲击。
  • 汽车电子: 保护汽车中的控制单元及车载通信设备,确保它们在恶劣电气环境下的稳定性。

四、工作温度

SMF12A的工作温度范围非常广泛,从 -55°C 到 150°C(TJ),确保其在极端条件下的工作稳定性和可靠性,适应多种环境的需求。这使得它在高温或低温条件下都能表现出色。

五、技术优势

  1. 电压抑制性能良好: SMF12A 的优良瞬态响应时间和稳定的击穿电压,确保了在实际应用中能迅速反应,对瞬态过压进行有效压制。

  2. 适应性强: 适用于多种电气环境及电路规范,兼容性好,使其在多种产品线得以广泛应用。

  3. 优质制造: Littelfuse 高品质的制造工艺和严格的品质控制,使得每个 SMF12A 的性能都是可靠的保证。

六、总结

综合来看,SMF12A 是一款拥有多项优良性能的瞬态电压抑制二极管,专为提供卓越的电源保护而设计。其广泛的工作温度范围,出色的瞬态响应能力,和高的峰值功率使其成为现代电子设备中不可或缺的保护元件。无论是在工业设备、通信系统还是消费电子产品中,SMF12A 都能提供可靠且高效的过电压保护,对延长设备使用寿命和提高系统可靠性具有重要的意义。

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