Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
HF HFD2/003-S-L2 HFD2
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HF HFD2 / 003-S-L2
- Type
- HF
- Minimum package
- 25 未知
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HF
- Electronic Component
- HFD2/003-S-L2
- Electronic Component
- 1
- Electronic Component
- 10.2mm
- Package
- DIP,20.2x10.2mm
- Electronic Component
- Signal Relay
- Electronic Component
- 5.74g
- Electronic Component
- 20.2mm
- Electronic Component
- 1
- Electronic Component
- 4.5ms
- Electronic Component
- BM0257490841
- Operating Temperature
- 40℃~+85℃
- Contact Resistor
- 100mΩ
- Coil Voltage
- 3V
- Coil Resistor
- 60Ω
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HFD2/003-S-L2 继电器产品概述
一、概述
HFD2/003-S-L2 为宏发（HF）出品的一款小型DIP封装电磁继电器，外形尺寸约20.2×10.2 mm，适合插装或波峰/回流焊接的印制板安装。该继电器定位为低功耗、快速响应的信号/小功率负载开关元件，适用于要求体积小、驱动功率低和开关速度快的场合。
二、主要电气参数
- 线圈电压：3 V
- 额定线圈功率：150 mW（典型），线圈电阻：60 Ω（3 V/60 Ω ≈ 50 mA）
- 触点容量（电阻性负载）：3 A @ 30 VDC；1 A @ 125 VAC（资料中另有2 A @ 30 VDC的描述，请在选型时核对具体批次或型号）
- 最大切换电压：250 V AC；220 V DC
- 最大切换电流：3 A
- 接触电阻：≤100 mΩ
三、动态性能与环境适应性
- 动作时间（吸合）：约4.5 ms
- 释放时间（断开）：约3.5 ms
- 工作温度范围：-40 ℃ ～ +85 ℃ 上述响应时间和温度范围使其在一般控制系统、通信设备和工业电子中具有良好的动力学和环境适应能力。
四、典型应用场景
- 信号和小功率直流/交流负载切换：如传感器接口、测量仪器、继电器阵列
- 智能家电与安防设备：小电流控制回路、报警与监控模块
- 通信与测试设备：需要低线圈功耗与快速开关的场合
- PCB插装替代机械开关的场景：节省空间并实现电子控制
五、选型与使用建议
- 驱动匹配：保证3 V线圈稳压和足够驱动能力，典型线圈电流约50 mA；建议采用稳压驱动或带反向电压抑制的驱动器（如二极管或RC吸收）以保护驱动电路。
- 负载考量：确认实际负载类型（电阻性或感性），感性负载需要额外的抑制措施以延长触点寿命。
- 寿命与热管理：在高频切换或较高电流工作时，应关注触点寿命和温升，合理布局PCB散热及保持触点在额定范围内工作。
- 校核规格：资料中存在对30 VDC触点容量的差异描述（2 A 与 3 A），在量产或关键应用前应向供应商确认具体出厂规格及相关寿命试验数据。
六、总结
HFD2/003-S-L2 是一款小型、低功耗且响应快速的DIP式通用继电器，适合于多种信号及小功率开关应用。选用时应重点核对触点容量与实际负载匹配，并采取合适的驱动与保护措施以保证可靠性和使用寿命。
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