WMSIC Electronic Components

HF HF33F/012-HS3 HF33F

ModelHF33F/012-HS3
PackageThrough-hole, 20.5x10.2mm
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 HF33F / 012-HS3
Type
HF
Minimum package
100 盒装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HF
Electronic Component
HF33F/012-HS3
Electronic Component
1
Electronic Component
10.2mm
Package
Through-hole, 20.5x10.2mm
Electronic Component
Power Relay
Electronic Component
5.9g
Electronic Component
20.5mm
Electronic Component
4
Electronic Component
1
Electronic Component
8ms
Electronic Component
BM0231132772
Operating Temperature
40℃~+70℃
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.

HF33F/012-HS3 产品概述

一 概述

HF33F/012-HS3 是宏发(HF)推出的一款小型插件继电器,采用单刀单掷常开(1A,SPST‑NO)触点形式,适合低功耗控制与信号切换场合。封装紧凑(20.5 × 10.2 mm),无极性单线圈设计,便于在各种电源极性条件下使用。该继电器兼顾体积、切换能力与响应速度,适用于家电、工业控制、仪表仪表及消费电子等领域。

二 主要技术参数

  • 触点形式:一组常开(1A,单刀单掷‑常开)
  • 触点材料:AgNi(银镍合金)
  • 触点电阻:≤100 mΩ
  • 额定线圈功率:450 mW
  • 线圈电压/电阻:12 V / 320 Ω(线圈工作电流约 37.5 mA)
  • 线圈类型:无极性(单线圈)
  • 动作/释放时间:动作时间 8 ms;释放时间 5 ms
  • 最大切换电流:10 A(视电压与负载类型)
  • 触点容量(电阻负载):5 A @ 30 VDC;5 A @ 250 VAC;10 A @ 125 VAC
  • 最大切换电压:250 V AC;30 V DC
  • 工作温度范围:-40 ℃ ~ +70 ℃
  • 引脚数:4(两脚线圈、两脚触点)
  • 封装/安装:插件,外形 20.5 × 10.2 mm

三 结构与材料特点

  • 触点采用 AgNi,适合一般开关与信号切换,耐磨损且导电性能稳定。
  • 无极性线圈简化驱动接口设计,可在不同极性供电下点亮,便于现场替换与维护。
  • 插件封装便于板上焊接与更换,适合批量生产和维修更换需求。
  • 小体积设计节省 PCB 空间,适用于空间受限的设备。

四 驱动与抑制建议

  • 工作电流约为 37.5 mA(12 V/320 Ω),驱动器需能稳定提供该电流。
  • 直流驱动时建议加续流保护元件以抑制线圈反向电压:
    • 若对释放时间要求不高,可并联二极管(续流二极管);二极管会延长释放时间。
    • 若需较快释放,优选二极管串联齐纳二极管或 RC 阻容吸收电路(RC 时间常数与释放速度权衡)。
  • 线圈为无极性,若采用二极管保护,应按实际驱动极性选择二极管方向;若需两极兼容的抑制方式,可采用 RC 或双向 TVS。

五 典型应用

  • 家用电器控制(小功率负载断开/接通)
  • 工业控制与继电保护(信号与控制回路)
  • 仪器仪表中的模拟信号切换与隔离
  • 通信设备与消费电子的小电流开关场合

六 安装与使用注意事项

  • 确认负载类型与触点容量匹配,尤其为感性或大电流负载时需考虑冲击电流和触点烧蚀问题。
  • 切勿超过最大切换电压(250 VAC / 30 VDC)与最大切换电流参数,避免缩短触点寿命。
  • 设计 PCB 孔位与插座时参照厂方封装图纸,保证插件牢固与可靠接触。
  • 工作环境温度应控制在 -40 ℃ 至 +70 ℃ 范围内,避免高温或潮湿环境长时间工作影响可靠性。
  • 有关电气寿命与机械寿命,请参照宏发官方数据手册或样品检验结果作为最终选型依据。

七 优势与选型建议

  • 优势:功耗低(450 mW),体积小、响应快(动作 8 ms / 释放 5 ms),无极性线圈便于安装,触点材质适合多种一般负载。
  • 选型提醒:若负载为大电流或高压直流,请优先评估触点容量与实际工作冲击;对快速切换需求高的场景,设计抑制元件时注意释放时间影响。

如需封装图、引脚排列或电气/机械寿命数据,可提供宏发原厂数据手册以做最终设计确认。型号:HF33F/012-HS3,插件封装,适合要求低功耗、小体积与可靠切换的应用。

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