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HF HF49FD/012-1H12 HF49FD
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HF HF49FD / 012-1H12
- Type
- HF
- Minimum package
- 100 未知
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HF
- Electronic Component
- HF49FD/012-1H12
- Electronic Component
- 1
- Electronic Component
- 5mm
- Package
- SIP,20x5mm
- Electronic Component
- Power Relay
- Electronic Component
- 3.37g
- Electronic Component
- 20mm
- Electronic Component
- 4
- Electronic Component
- 1
- Electronic Component
- 10ms
- Electronic Component
- BM0257710344
- Operating Temperature
- 40℃~+85℃
- Contact Resistor
- 100mΩ
- Coil Voltage
- 12V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HF49FD/012-1H12 产品概述
一、产品简介
HF49FD/012-1H12 为宏发（HF）出品的一款小型低功耗继电器，属于单刀单掷（SPST）常开型触点配置。线圈额定电压为 12V，线圈功率仅 120mW，线圈电阻约 1.2kΩ，属于无极性单线圈设计（可正反接），适合对功耗敏感的电子系统。
二、主要电气参数
- 线圈电压：12VDC
- 线圈电阻：1.2kΩ（约 10mA 驱动电流）
- 额定线圈功率：120mW
- 触点形式：一组常开（单刀单掷，NO）
- 触点材料：AgNi（银镍合金）
- 触点电阻：≤100mΩ（典型）
- 触点容量（电阻性负载）：5A@30VDC，5A@250VAC
- 最大切换电压：250V AC / 30V DC
- 最大切换电流：5A
- 动作/释放时间：约 10ms / 5ms
- 引脚数：4（通常为两线圈脚 + 公共/常开触点脚）
- 工作温度：-40℃ ~ +85℃
三、性能特点与优势
- 低功耗线圈（120mW），适用于电池供电或节能设计。
- 无极性线圈，接线更灵活，便于系统设计与测试。
- 快速响应（动作约10ms、释放约5ms），适合较高频次切换场合。
- 触点容量可达 5A，满足一般家电、工业控制与通信设备的电源或信号切换需求。
- 宽温工作范围，适应工业级环境。
四、使用建议与注意事项
- 额定容量为电阻性负载下的值；对感性负载（电机、电磁线圈等）需采取抑制措施（并联二极管、R-C 吸收或 TVS 等），并相应降额使用。
- 直流开关会比交流更易产生电弧，30VDC 的额定限制不可超载，长期开关大电流直流负载应选用更高等级器件或外加保护器件。
- AgNi 触点抗氧化性良好，但在含硫环境（如硫化气体）可能影响寿命，需根据应用环境选择特殊触点材料或密封方案。
- 线圈为低电流设计，但在板端使用驱动晶体管或 MCU 输出时仍建议并联反向抑制二极管（DC 驱动）以保护驱动器件。
- 引脚与封装尺寸请参考厂家详细数据手册，当前封装尺寸未列出，装配前务必确认焊盘和安装方式。
五、典型应用场景
- 工业控制与信号切换
- 通信设备与交换模块的低功耗控制回路
- 家用电器的控制板与继电保护
- 仪器仪表、楼宇自动化的电源或信号隔离切换
六、选型与采购提醒
选型时除电压、电流、触点形式外，应核实机械使用寿命、耐电压、绝缘阻抗、耐振动冲击以及是否通过相关认证（如需要）。HF49FD/012-1H12 适合寻求低功耗、通用型开关能力的应用；若需更高直流开关能力或特殊环境适应性，请联系供应商确认更高规格型号或定制方案。
总结：HF49FD/012-1H12 是一款低功耗、响应快、通用性强的 SPST 常开继电器，适合广泛的控制与切换场景，使用时注意对感性负载的保护及环境耐受性。
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