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GOODWORK SMF33CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- GOODWORK SMF33CA
- Type
- GOODWORK
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- GOODWORK
- Electronic Component
- SMF33CA
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.042g
- Electronic Component
- 1
- Electronic Component
- BM0255009206
- Operating Temperature
- 55℃~+150℃
- Voltage
- 53.3V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 36.7V
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMF33CA 产品概述
一、产品简介
SMF33CA 是 GOODWORK（固得沃克）出品的一款双向瞬态电压抑制器（TVS），用于抑制瞬态过电压和浪涌脉冲，保护电子设备中的敏感元件。器件为双向结构，适合对称正负极性瞬态干扰的抑制，常用于电源线、通信线和接口保护场合。
二、主要电气参数
- 极性：双向
- 反向截止电压 Vrwm：33 V
- 击穿电压（典型）：36.7 V
- 钳位电压 Vc：53.3 V（在峰值脉冲电流条件下）
- 峰值脉冲电流 Ipp：3.8 A
- 峰值脉冲功率 Ppp：200 W（典型脉冲条件下）
- 反向漏电流 Ir：1 μA（在 Vrwm 条件下）
- 工作温度范围：-55 ℃ 至 +150 ℃（Tj）
- 类型：TVS（瞬态电压抑制器）
- 封装：SOD-123FL
三、关键特性与优势
- 双向保护：对双向瞬态（正/负）均能有效钳位，适合交流或双极性总线。
- 低漏电流：Ir≈1 μA，可在不显著增加待保护电路静态功耗的前提下工作。
- 高浪涌承受力：Ppp=200 W、Ipp=3.8 A，在典型浪涌脉冲下可提供可靠钳位保护。
- 宽工作温度：-55 ℃ 至 +150 ℃，适用于工业级及高温环境。
- 小封装：SOD-123FL 体积小、引脚间距短，便于高密度 PCB 布局且寄生电感小。
四、典型应用场景
- 汽车电子（辅助电源、传感器接口）
- 工业控制系统的电源与讯号线保护
- 通信接口与串行总线（如 RS-485、CAN）的瞬态抑制
- 消费电子的充电口、USB、音视频接口防护
五、封装与热管理建议
SOD-123FL 封装便于 SMB/SMF 型产品在紧凑电路中布局，但因器件在吸收大能量脉冲时会产生热量，建议：
- 将 TVS 置于靠近受保护接口或连接器处，缩短环路长度以降低寄生感抗。
- 为频繁受冲击或大能量应用配合散热铜箔或加大焊盘面积，提高热耗散能力。
- 在高密度布线环境下注意与其他热敏器件的距离，避免温度堆积。
六、选型及使用建议
- 确认系统正常工作电压，Vrwm=33 V 适合高于一般 24 V 但低于 33 V 的系统作为保护器件；选择时确保 Vrwm 高于最大工作电压，以避免误触发。
- 钳位电压 53.3 V 表示在峰值冲击时受保护节点不会超过该值，需确认受保护器件的耐压能力高于该钳位值。
- 若电路可能遭受更高能量脉冲，考虑并联更高能量等级的 TVS 或配合熔断/限流元件共同保护。
七、可靠性与品质说明
SMF33CA 采用工业级温度规格与低漏电设计，适合长期工作于恶劣环境。GOODWORK 品牌提供的器件在封装一致性与电气参数稳定性方面具有良好可控性，适合批量生产的电性能要求。使用前建议参照厂家完整数据手册进行脉冲测试条件、门限曲线及封装尺寸确认。
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