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Littelfuse SMF28A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse SMF28A
- 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
- SMF28A
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.036g
- Electronic Component
- 1
- Electronic Component
- BM0084328381
- Operating Temperature
- 65℃~+150℃
- Voltage
- 45.4V
- 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.
SMF28A 产品概述
一、产品简介
SMF28A是一款高性能的瞬态电压抑制二极管（TVS），采用表面贴装型封装（SOD-123F），专为保护敏感电子设备免受瞬时过电压和静电放电（ESD）等电气干扰而设计。该器件具备优异的反向击穿特性与宽广的工作温度范围，适用于各种通用电子应用。
二、基本参数
- 类型: 齐纳二极管
- 单向通道: 1
- 电压 - 反向断态（典型值）: 28V
- 电压 - 击穿（最小值）: 31.1V
- 不同 Ipp 时电压 - 箝位（最大值）: 45.4V
- 电流 - 峰值脉冲 (10/1000µs): 4.4A
- 功率 - 峰值脉冲: 200W
- 电源线路保护: 无
三、应用场景
SMF28A的设计使其广泛应用于各类电子产品，如：
- 计算机设备：保护电源线路、数据接口及其他敏感组件。
- 通信设备：确保信号稳定，防止过电压损害电路。
- 消费电子：如电视、音响等，保护主页电源和接口。
- 工业设备：为电气仪器和控制系统提供防护。
四、工作特性
SMF28A的其工作电压及保护能力确保其在恶劣电气环境中的优良表现。其反向击穿电压为31.1V，这意味着一旦过电压发生，器件会迅速导通，从而保护下游电路，使其不受到超过28V的电压影响。其最大电压箝位为45.4V，确保在高脉冲情况下的电路安全。
高达4.4A的峰值脉冲电流能力让SMF28A能够处理较大过电压冲击，200W的峰值功率确保其在瞬时高能量情况下的稳定性，是保证电路稳健运行的重要因素。此外，SMF28A支持的工作温度范围广泛（-55°C至150°C），使其在各种环境条件下均能可靠工作。
五、封装及安装类型
该产品采用SOD-123F封装，这种模块化设计不仅降低了PCB占用面积，还简化了组装过程。其表面贴装型设计适合现代自动化设备的高效生产，提升了生产效率和降低了成本。
六、总结
SMF28A凭借其高效的电压抑制能力和稳定的电气性能，成为保护敏感电子设备的理想选择。无论是在消费电子、工业设备或是其它各类电路中，SMF28A都能发挥重要作用，保证设备的安全可靠运行。选用SMF28A可以有效提高电子产品的耐用性和稳定性，降低因电压瞬变引起的故障概率，为用户提供更高的使用体验和系统可靠性。
如需进一步了解SMF28A的详细规格和应用，请参考Littelfuse的官方技术手册或咨询专业技术人员。选择合适的保护组件，确保您的电子设备在任何环境中都始终处于安全状态。
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