WMSIC Electronic Components

HF HF49FD/012-1H11T HF49FD

ModelHF49FD/012-1H11T
PackageSIP,5x20mm
BrandHF
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HF HF49FD / 012-1H11T
Type
HF
Minimum package
100 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HF
Electronic Component
HF49FD/012-1H11T
Electronic Component
1
Electronic Component
5mm
Package
SIP,5x20mm
Electronic Component
Power Relay
Electronic Component
2.75g
Electronic Component
20mm
Electronic Component
4
Electronic Component
1
Electronic Component
10ms
Electronic Component
BM0257316578
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/012-1H11T 产品概述

一、产品简介

HF49FD/012-1H11T 是宏发(HF)推出的一款小型中功率继电器,额定线圈电压为 12V,触点形式为单刀单掷常开(SPST-NO)。该继电器采用 SIP 封装(5x20mm)、4 引脚设计,适用于空间受限且对开关容量有中等要求的电子设备与控制系统。

二、主要特性

  • 线圈电压:12V(无极性单线圈),线圈电阻 1.2kΩ,线圈功耗 120mW(线圈工作电流约 10mA)。适合低功耗设计和电池供电场景。
  • 触点配置:一组常开(单刀单掷-常开)。
  • 触点材料:AgSnO2,具备良好的耐电弧和抗粘着性能。
  • 触点容量(电阻负载):5A @ 30VDC;5A @ 250VAC;最大切换电压 30VDC / 250VAC,最大切换电流 5A。
  • 电气特性:接触电阻典型值 100mΩ。
  • 响应速度:动作时间 10ms,释放时间 5ms。
  • 工作环境:工作温度范围 -40℃ ~ +85℃,适应工业级温度要求。
  • 封装与引脚:SIP,外形尺寸 5x20mm,4 引脚(2 引脚为线圈,2 引脚为常开触点,便于 PCB 插装或插件连接)。

三、典型应用

  • 家电控制回路、照明控制模块。
  • 工业控制板、嵌入式控制器的开关输出。
  • 汽车电子(非安全关键回路)与仪表仪表的负载切换。
  • 通信设备、安防系统中对小电流或中等电流负载的控制。

四、接线与使用说明

  • 引脚说明(常见引脚分配):两个线圈引脚、两位常开触点引脚(在设计 PCB 时请依据厂方实际引脚图纸校对)。
  • 线圈驱动:线圈为无极性,直流驱动时无须考虑极性,但请确保供电稳压,避免过压。12V 标称电压下线圈电流约为 10mA(I = 12V/1.2kΩ),功耗约 120mW。
  • 负载连接:为保证触点寿命及可靠性,建议在接直流感性负载或感性负载控制时加入抑制电路(如二极管、RC 抑制、TVS 等),并注意触点所承受的电压/电流不超过额定值。

五、安装与注意事项

  • 焊接:建议采用手工或波峰焊工艺前,参考厂方推荐的回流/波峰焊温度曲线,避免长时间高温损伤继电器内部。
  • 散热与环境:尽管继电器能在 -40℃ ~ +85℃ 工作,但在高温或密闭环境中需考虑散热与通风,避免长时间靠近高温元器件。
  • 可靠性维护:频繁开关高电流或产生电弧的场合会加速触点磨损,应根据实际工况评估继电器寿命并预留维护策略。
  • 防护:对于潮湿或腐蚀性气氛下的应用,建议采取防护措施或使用密封型继电器替代。

六、选型建议

  • 若系统对功耗敏感或电源能力有限,HF49FD/012-1H11T 以 120mW 的低线圈功率为优势,适合低功耗控制回路。
  • 若负载常在 5A 附近或为感性负载,建议评估触点耐久度并考虑使用带有更高耐久性的继电器或并联触点方案。
  • 在 PCB 布局时,预留足够的触点间距与散热空间,并依据厂家数据手册确认具体引脚排列与安装孔位。

如需完整的引脚图、尺寸图或更详细的电气寿命与机械寿命数据,请参考宏发官方数据手册或向供应商索取样品测试报告。

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