Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
HF HF3FF/012-1HTF HF3FF
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HF HF3FF / 012-1HTF
- Type
- HF
- Minimum package
- 100 未知
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HF
- Electronic Component
- HF3FF/012-1HTF
- Electronic Component
- 1
- Package
- Through-hole, 19x15.2mm
- Electronic Component
- Power Relay
- Electronic Component
- 7.57g
- Electronic Component
- 4
- Electronic Component
- 1
- Electronic Component
- 10ms
- Electronic Component
- BM0257710297
- Operating Temperature
- 40℃~+85℃
- Contact Resistor
- 100mΩ
- Coil Voltage
- 12V
- Coil Resistor
- 400Ω
- Coil Type
- Coil
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HF3FF/012-1HTF 产品概述
一、产品简介
HF3FF/012-1HTF 是宏发（HF）推出的一款超小型大功率继电器，单刀单掷（SPST）常开触点结构，适合在空间受限但需切换较大电流的场合使用。继电器以12V直流线圈驱动，设计紧凑、寿命可靠，适用于各类电源控制与工业控制场景。
二、主要电气参数
- 线圈电压：12 V DC（无极性单线圈），线圈电阻 400 Ω，线圈电流约 30 mA，线圈功率 360 mW。
- 触点形式：一组常开（单刀单掷，NO）。
- 触点容量（电阻负载）：10 A @ 28 VDC；10 A @ 277 VAC；最大切换电流 15 A。最大切换电压：277 VAC / 28 VDC。
- 触点材料：AgSnO2，接触电阻 ≤ 100 mΩ。
- 动作/释放时间：动作约 10 ms，释放约 5 ms。
- 引脚数：4。
- 工作温度范围：-40 ℃ ~ +85 ℃。
三、性能与特点
- 小体积高承载：在超小型封装下实现10 A 的电阻负载切换能力，适合网关、继电保护或小型电源模块。
- AgSnO2 触点：抗电弧能力强、抗焊接性能好，适应高冲击电流场合（仍建议注意涌流限制）。
- 低线圈功耗：360 mW 的线圈功耗对应约 30 mA 驱动电流，便于与微控制器或低功耗驱动电路配合。
- 响应快：典型动作/释放时间分别为 10 ms / 5 ms，满足一般控制逻辑要求。
- 宽温适应：-40~+85 ℃，可在多种环境下稳定工作。
四、典型应用
- 家用与商用电源切换、照明控制、空调及HVAC控制模块。
- 工业控制回路、信号切换、继电保护与小功率电机的控制回路（注意涌流和感性负载保护）。
- 仪器仪表的电源隔离与开关控制。
五、设计选型与注意事项
- 驱动电路：线圈为无极性但若并联二极管（Flyback）使用时会引入极性，建议在驱动器（晶体管或MOSFET）侧加反向吸收器件（抑制二极管、RC 或 TVS）以抑制反向峰值和提高寿命；若要求快速释放，可采用 RC 或 TVS 代替二极管。
- 负载类型：对电阻性负载标称 10A，感性或存在高冲击电流（如电机、电感负载）时应考虑更大的安全裕量或并联浪涌限制器，避免触点焊接或过早失效。
- 温度与寿命：在高温或连续频繁切换工况下应适当降额使用，具体寿命与机械/电气寿命请参考完整数据手册及实测结果。
- 封装与安装：本产品为小型继电器，引脚数 4（线圈两脚、触点两脚），具体封装形态与PCB布局请参照厂方数据表确认（用户应确认引脚排列、孔径与高度限制）。
六、采购与资料
品牌：HF（宏发），型号：HF3FF/012-1HTF。建议在设计前索取并阅读厂家完整数据手册，验证机械尺寸、引脚排布、寿命曲线和各类负载下的推荐使用条件，以确保长期可靠运行。
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