WMSIC Electronic Components

HF HF115F-25/12-H3TF HF115F

ModelHF115F-25/12-H3TF
PackageDIP,29x12.7mm
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 HF115F-25 / 12-H3TF
Type
HF
Minimum package
500 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HF
Electronic Component
HF115F-25/12-H3TF
Electronic Component
1
Electronic Component
12.7mm
Package
DIP,29x12.7mm
Electronic Component
Power Relay
Electronic Component
14.57g
Electronic Component
29mm
Electronic Component
6
Electronic Component
1
Electronic Component
15ms
Electronic Component
BM0257416551
Operating Temperature
40℃~+105℃
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.

HF115F-25/12-H3TF 功率继电器概述

一、产品简介

HF115F-25/12-H3TF 是宏发(HF)出品的一款小型高功率电磁继电器,采用DIP直插封装(尺寸约29 × 12.7 mm),面向需要大电流开关能力但空间受限的应用场景。该继电器为一组常开触点(单刀单掷,SPST-NO),触点材料为AgSnO2,兼顾高耐久性与耐弧性能,适用于交流/直流电路中的功率开关控制。

二、主要规格(摘要)

  • 线圈电压:12 V DC(无极性单线圈)
  • 线圈电阻:360 Ω(线圈电流约 33.3 mA,线圈功率 400 mW)
  • 触点形式:一组常开(SPST-NO)
  • 触点容量(电阻性负载):23 A @ 277 VAC
  • 最大切换电流:25 A
  • 最大切换电压:277 V AC
  • 触点材料:AgSnO2
  • 接触电阻:≤100 mΩ
  • 动作时间:约 15 ms;释放时间:约 8 ms
  • 工作温度范围:-40 ℃ ~ +105 ℃
  • 引脚数:6(标准PCB直插布局)
  • 封装:DIP,适合通孔焊接安装

三、特点与优势

  • 小体积高功率:29×12.7mm 的DIP封装在有限空间内实现23A级别的开关能力,适合板上直接替换或设计使用。
  • 触点耐用:AgSnO2触点材料对电弧及焊接负载有较好抵抗力,适合频繁开关及有大浪涌电流的负载(例如电机、压缩机启动电流)。
  • 低线圈功耗:400 mW 线圈功率,线圈驱动电流约33 mA,便于电路驱动,减少热量积累。
  • 无极性线圈:线圈对极性不敏感,便于在不同方向或交流兼容的应用中使用(但若在DC电路中使用保护二极管需注意极性影响)。

四、应用场景

  • 空调、冰箱、洗衣机等家电压缩机或大电流控制回路
  • 工业控制系统中的电源切换、加热/照明大功率回路
  • 商用照明与楼宇电气控制(可在277 VAC系统中使用)
  • 电源与UPS系统、模块化电源输出的高电流开关
  • 汽车电源辅助设备(须符合车辆环境及寿命要求时验证)

五、设计与使用建议

  • 驱动电路:线圈电流约33 mA,建议使用驱动晶体管或MOSFET驱动,若由MCU直接驱动需确认单引脚持续电流能力。使用单向二极管时会使线圈带极性,请在设计时考虑;若需保持无极性特性,可选用RC吸收网络或双向TVS。
  • 触点保护:在切换感性负载时应并联RC(RC吸收器)、MOV或TVS以抑制反向电压和抑制电弧,延长触点寿命。
  • PCB与走线:为了承载23–25 A 的工作/浪涌电流,建议使用加宽铜箔或多层过孔并联、加固焊盘及加锡处理,确保散热和电阻最小化。
  • 热管理:在高温或连续负载下注意散热空间与路径,遵循工作温度范围 -40 ℃~+105 ℃。
  • 安全与可靠性:用于高电压(最高277 VAC)场合时,应保证足够爬电距离与绝缘,配合保险、过流保护和接地措施符合相关安全标准。

六、注意事项与选型提示

  • 虽可标称23 A @ 277 VAC(电阻性负载),但感性负载(电机启动、电容性负载)会产生更高浪涌电流,应按寿命和安全裕度进行选择与保护。
  • 若应用需更高的机械或电寿命、或更高耐冲击能力,请参考厂商完整数据表并进行样机测试验证。
  • 若应用场景涉及直流大电流切换,建议核对直流额定切换能力与触点寿命曲线,并考虑触点烧结和凝结风险。

总结:HF115F-25/12-H3TF 是一款兼顾体积与高开关能力的通用功率继电器,适合需要23 A 级别交流开关且空间受限的工业与家电应用。在设计时应结合负载类型、开关次数与抑制措施,合理配置驱动与保护电路以保证长期可靠运行。若需详细引脚定义、寿命曲线及环境试验数据,建议查阅宏发官方数据手册或咨询供应商技术支持。

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