WMSIC Electronic Components

HF HFD27/005-S HFD27

ModelHFD27/005-S
PackageDIP,20.2x10.2mm
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HF HFD27 / 005-S
Type
HF
Minimum package
25 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HF
Electronic Component
HFD27/005-S
Electronic Component
1
Electronic Component
10.2mm
Package
DIP,20.2x10.2mm
Electronic Component
Power Relay
Electronic Component
5.1g
Electronic Component
20.2mm
Electronic Component
8
Electronic Component
1
Electronic Component
7ms
Electronic Component
BM0231130870
Operating Temperature
40℃~+85℃
Contact Resistor
100mΩ
Coil Voltage
5V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

HFD27/005-S 产品概述

一、产品简介

HFD27/005-S 是宏发(HF)推出的一款小型低功耗通用继电器,封装为 8 引脚 DIP(尺寸:20.2 × 10.2 mm),触点形式为两组转换(2C,双刀双掷)。该继电器以 5V 线圈驱动、额定线圈功率仅 200 mW 为特点,适合在空间受限且需低功耗切换控制的场合使用。

二、主要规格(摘要)

  • 线圈电压:5 V(无极性单线圈)
  • 线圈电阻:125 Ω(典型)→ 驱动电流 ≈ 5V / 125Ω = 40 mA;线圈功率:200 mW
  • 触点形式:两组转换(2C / DPDT)
  • 引脚数 / 封装:8 引脚 / DIP,外形尺寸 20.2 × 10.2 mm
  • 触点材料:AgNi + 镀金
  • 触点容量(阻性负载):2 A @ 30 VDC;1 A @ 125 VAC
  • 最大切换电流:2 A;最大切换电压:120 V DC / 240 V AC
  • 接触电阻:100 mΩ(典型)
  • 动作/释放时间:动作 7 ms;释放 4 ms
  • 工作温度范围:-40 ℃ ~ +85 ℃

三、关键特性与优势

  • 低功耗:200 mW 线圈功率和约 40 mA 的线圈电流,非常适合电池供电或功耗受限系统。
  • 小体积 DIP 封装:20.2×10.2mm 的标准 DIP 形态,方便通过孔安装与手工或波峰/回流焊接工艺集成。
  • 双刀双掷触点:每枚继电器提供两路独立转换触点,便于实现信号切换或多路控制,节省空间与成本。
  • 优良接触可靠性:AgNi 基材加镀金处理,兼顾耐擦伤与抗氧化特性,保证低接触电阻与稳定的长期性能。
  • 快速响应:7 ms/4 ms 的动作/释放时间,适用于多数控制与切换场合。

四、典型应用场景

  • 通信设备、测试测量仪器中的信号切换
  • 工业控制、PLC 辅助开关与小电流负载控制
  • 家用/办公设备的控制回路(如小型继电器阵列)
  • 电池供电或便携式设备中的低功耗开关解决方案
    (对大电流感性负载或直流大电流热插拔场合需谨慎选用或加外部保护)

五、使用建议与注意事项

  • 驱动方式:典型线圈电流约 40 mA,建议由晶体管、MOSFET 或专用驱动芯片驱动;直接由 MCU IO 引脚驱动需确认 MCU 能承受的持续电流。
  • 线圈抑制:继电器为无极性线圈,若在单向驱动电路中并联二极管可吸收反向高压(但会使线圈极性敏感)。若需交流或更快释放,建议使用 RC 抑制器或 TVS 器件。
  • 负载要求:触点额定为 2 A(在 30 VDC 下),对高电压或感性负载(电机、电感线圈等)应加外部电弧吸收、RC 或固态器件保护,避免触点烧蚀与寿命下降。
  • 环境与寿命:工作温度 -40~+85 ℃,适应广泛工业环境;为确保长期可靠性,请参考厂家完整寿命与耐久性测试数据并按应用工况做适当余量。

六、选型提示

若设计要求低功耗、小体积并需要 DPDT 功能,HFD27/005-S 是一个性价比高的选择;但当系统需切换更高电流或频繁切换感性负载时,应考虑更高额定触点或增加外部保护电路。选型时请结合预期负载类型、开关频率与环境条件,必要时联系供应商获取完整规格书与耐久性数据。

如需封装引脚图、典型接线示例或替代型号建议,我可以继续提供详细信息。

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