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TWGMC SMF30CA Bidirectional TVS Diode SMF30CA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TWGMC SMF30CA
- Type
- TWGMC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TWGMC
- Electronic Component
- SMF30CA
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.046g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Electronic Component
- BM0228587136
- Operating Temperature
- 55℃~+150℃
- Voltage
- 48.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 36.8V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMF30CA 产品概述
一、产品简介
SMF30CA为单通道双向瞬态抑制二极管（TVS），由台湾TWGMC（台湾迪嘉）生产，封装为SOD-123FL。该器件专为抑制瞬态过电压、静电放电（ESD）和雷击/开关瞬变设计，在工业控制、电源输入、信号线保护及通信接口等场合提供可靠的浪涌保护。
二、主要性能参数
- 钳位电压（Vc）：48.4V（在标准10/1000µs浪涌波形下）
- 工作温度范围：-55℃ 至 +150℃
- 击穿电压（Vbr）：36.8V
- 反向截止电压（Vrwm）：30V
- 峰值脉冲功率（Ppp）：200W（10/1000µs）
- 峰值脉冲电流（Ipp）：4.1A（10/1000µs）
- 反向漏电流（Ir）：最大 1µA（在Vrwm条件下）
- 极性：双向（无需方向标识）
上述参数表明SMF30CA在30V直流工作电压的系统中，能在瞬态事件发生时将过电压钳位在约48.4V，有效保护下游器件。
三、封装与机械特性
SMF30CA采用SOD-123FL小型封装，体积小、安装方便，适合表面贴装生产线。封装具有良好的耐温性能及可焊性，适用于批量SMT工艺。双向结构免去极性区分，便于布局。
四、典型应用场景
- 工业控制电源及接口保护（24V或30V系统）
- 通信端口与数据线的浪涌/ESD抑制
- 电源输入端的反向或瞬态浪涌保护
- 仪表、测控模块、嵌入式系统等需要紧凑体积保护方案的场合
五、设计与使用建议
- 布局：将TVS尽量靠近受保护端口或连接器，缩短引线和走线长度以降低感抗和串联阻抗。
- 热管理：SOD-123FL为小型封装，长时间大能量吸收会导致封装升温；在可能的大浪涌场合应考虑并联升额或在更大功率器件上级联保护。
- 电气配合：在30V工作电压系统中，Vrwm=30V可在正常工作下不触发；选择时确认系统最大工作电压与容差。
- 可靠性：注意焊接温度曲线和回流规范，避免对器件热应力造成损伤。
六、可靠性与测试
TWGMC器件设计满足工业级电气及温度要求，典型场景下的峰值脉冲功率200W（10/1000µs）与Ipp 4.1A可应对常见浪涌。实际系统验证应包含：ESD冲击试验、浪涌10/1000µs波形测试及高低温循环，以确认在目标应用中的长期可靠性。
七、选型与采购建议
在选型时，核对系统工作电压、允许钳位电压及浪涌能量要求。若系统需更高能量吸收或更低钳位电压，可考虑并联或选用更大Ppp等级的TVS器件。采购时请向正规渠道索取完整规格书与批次检测报告，以确保器件性能与一致性。
总结：SMF30CA以其30V反向工作电压、48.4V钳位、200W瞬态能量处理能力及小巧SOD-123FL封装，为中低压系统提供了一种经济可靠的瞬态抑制解决方案。
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