WMSIC Electronic Components

HF HFD27/024-S HFD27

ModelHFD27/024-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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HF HFD27 / 024-S
Type
HF
Minimum package
4000

Technical parameters

Electronic Component
HF
Electronic Component
HFD27/024-S
Electronic Component
1
Electronic Component
10.2mm
Package
DIP,20.2x10.2mm
Electronic Component
Signal Relay
Electronic Component
5.829g
Electronic Component
20.2mm
Electronic Component
1
Electronic Component
7ms
Electronic Component
BM0231130869
Operating Temperature
40℃~+85℃
Contact Resistor
100mΩ
Coil Voltage
24V
Coil Resistor
2.88kΩ
Electronic Component
Ag Ni+

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

HFD27/024-S DIP 继电器产品概述

一、产品简介

HFD27/024-S 为宏发(HF)出品的小型DIP封装电磁继电器,线圈电压为24V DC,适合在体积受限且需要可靠开关控制的电子设备中使用。该型号采用低功耗线圈设计、AgNi触点并辅以镀金处理,兼顾信号级开关性能与小功率负载传输的可靠性,封装尺寸约为20.2 × 10.2 mm,便于 PCB 上密集布局与自动插件/波峰焊接。

二、主要电气参数

  • 线圈电压:24V DC
  • 额定线圈功率:200 mW(线圈电阻 2.88 kΩ,工作电流约 8.33 mA)
  • 触点容量(电阻负载):1 A @ 125 VAC;2 A @ 30 VDC
  • 最大切换电压:120 V DC;240 V AC
  • 最大切换电流:2 A
  • 触点材料:AgNi + 镀金(提高低电平信号接触可靠性)
  • 接触电阻:≤ 100 mΩ
  • 动作时间(operate):约 7 ms;释放时间(release):约 4 ms
  • 工作温度范围:-40 ℃ ~ +85 ℃

三、产品特点与优势

  • 低线圈功耗:200 mW 的线圈功率在需要低功耗设计(如电池供电或多继电器场景)时非常有利,单个线圈工作电流仅约 8.3 mA,可减轻驱动电路负担。
  • 小体积 DIP 封装:20.2 × 10.2 mm 紧凑尺寸,便于高密度 PCB 布局并支持通用插装或波峰焊接工艺。
  • 触点镀金处理:在低电平信号切换(如通信线、传感器信号)时具有更稳定的接触性能,减少氧化导致的接触不良。
  • 快速响应:7 ms 的动作时间与 4 ms 的释放时间适合一般控制与信号切换应用。

四、典型应用场景

  • 通信设备与接口隔离
  • 仪器仪表中的信号路由与保护
  • 安防与门禁控制模块
  • 小型家电与工业控制中低功率负载的开关
  • 继电器矩阵/多路切换系统

五、设计与使用建议

  • 驱动电路:虽然线圈电流较小,理论上单个 MCU 引脚可直接驱动(需确认 MCU 引脚容许的最大持续电流);推荐采用缓冲驱动器(NPN/PNP 或 MOSFET)并在驱动侧并联反向并联二极管(flyback)或 RC 抑制器以吸收线圈反向峰值电压,保护驱动器元件。
  • 继电器与负载匹配:严禁超过额定触点电压/电流(2 A、120 VDC/240 VAC);对感性负载(电机、继电器线圈、变压器)应加装合适的抑制元件(RC、TVS、RCsnubber 或 MOV)以减小电弧与延长触点寿命。
  • PCB 布局:为确保高压隔离,AC 侧走线应保持适当爬电距离及气隙,重要信号或高压线与低压控制线应分区布线并考虑遮蔽/隔离。
  • 焊接与可靠性:DIP 封装适配通孔焊接工艺,建议按宏发官方资料中的焊接温度与时长规范执行;若产品用于严苛环境(高湿、高温或振动),请参考厂方完整寿命与环境测试数据并做相应的老化/可靠性验证。
  • 清洁与涂覆:若 PCB 需要清洗或涂覆,请确认工艺兼容性以免影响触点或封装性能。

六、选型与采购注意事项

在最终选型前,请结合实际负载类型(阻性/感性)、工作电压、环境温度和寿命要求,向供应商索取完整数据手册(含机械尺寸图、引脚排列、寿命曲线及开关寿命额定),并在可能的情况下获取样品进行实际电气与环境测试。HFD27/024-S 适合以信号级和小功率负载为主的应用场景,但对于高电流或频繁开关的场合,应考虑更高额定触点的继电器或固态继电器。

如需我提供典型驱动电路参考、PCB 布局建议或与同类产品(不同线圈电压/触点容量)比较,我可以继续协助。

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