WMSIC Electronic Components

kinghelm KH-4.5X4.5X4.3H- KH-4.5X4.5X4.3H-STM

ModelKH-4.5X4.5X4.3H-STM
PackageSMD
Brandkinghelm
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
kinghelm KH-4.5X4.5X4.3H-STM
Type
KINGHELM
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KINGHELM
Electronic Component
KH-4.5X4.5X4.3H-STM
Electronic Component
1
Package
SMD
Electronic Component
Electronic Component
Electronic Component
Switch
Electronic Component
0.268g
Electronic Component
Electronic Component
Electronic Component
1
Electronic Component
BM0265398685
Electronic Component
Electronic Component
Switch
4.5mm
Switch
4.5mm
Switch
4.3mm
Electronic Component
Electronic Component

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

金航标KH-4.5X4.5X4.3H-STM轻触开关产品概述

一、产品基本定位与品牌背景

金航标(kinghelm)是国内专注电子元器件研发生产的老牌厂商,深耕轻触开关、连接器领域十余年,其KH系列产品以高性价比、适配高密度电路为核心竞争力。KH-4.5X4.5X4.3H-STM属于该系列小型SMD立装轻触开关,主打小体积、基础通断功能,针对便携式设备、工业控制模块等对空间要求严苛的场景,是消费电子、通讯设备等领域的常规选型。

二、核心参数规格明细

该型号开关的关键参数可清晰支撑其应用场景:

  • 电路逻辑:单刀单掷(SPST),单次按压实现通断,无自锁功能,符合轻触开关的常规操作逻辑;
  • 外观尺寸:本体长4.5mm×宽4.5mm×高4.3mm,圆形按钮设计,整体体积紧凑,适配狭小空间布局;
  • 安装方式:立贴(SMD立装),鸥翼型引脚,支持自动化SMT贴装,提升生产效率;
  • 辅助特征:不带支架(减少额外空间占用)、无LED灯(简化结构降本)、黑色按钮/盖帽(视觉辨识度清晰);
  • 封装形式:SMD(表面贴装),4引脚配置(对应SPST电路需求)。

三、结构设计与工艺特点

  1. 小体积适配高密度布局:4.5×4.5mm正方形本体+4.3mm高度,可轻松集成到智能手环、蓝牙耳机等便携式设备的狭小空间,无需额外预留布局;
  2. 鸥翼引脚优势:引脚与PCB焊盘对齐度高,焊接后机械强度优于常规引脚,避免运输/使用中的松动;
  3. 触感与回弹优化:圆形按钮按压行程约0.25mm,回弹时间≤10ms,手感舒适无卡顿,适合频繁操作;
  4. 环保与材料:触点采用银合金(导电稳定、耐磨损),符合RoHS/REACH标准,无铅无镉。

四、应用场景适配性

因体积小、可靠性高,该开关广泛适配:

  • 消费电子:智能穿戴(手环/手表功能键、蓝牙耳机配对键)、迷你遥控器(电视/机顶盒迷你款)、便携音频设备(耳机盒控制键);
  • 工业控制:小型传感器模块(温湿度/压力传感器配置键)、工业手持终端(扫码枪触发键)、PLC辅助模块;
  • 通讯设备:路由器/交换机复位键、光猫状态切换键;
  • 智能家居:迷你智能开关面板、传感器节点(人体感应测试键)。

五、安装与使用注意事项

  1. 贴装工艺:SMT回流焊需控制峰值温度≤260℃、持续时间≤10秒,避免高温损坏触点;
  2. 焊接质量:鸥翼引脚需与焊盘完全贴合,无虚焊假焊,可通过X-ray检测;
  3. 操作压力:按压压力建议1~2N,避免过度按压导致弹片变形;
  4. 存储环境:温度-40℃~85℃、湿度≤85%RH,防潮防高温;
  5. 静电防护:生产/安装需戴静电手环,用防静电包装,防止击穿触点。

六、品质与可靠性说明

  1. 电性能:初始触点电阻≤50mΩ,绝缘电阻≥100MΩ(500V DC),额定12V DC/50mA;
  2. 机械寿命:按压≥10万次,满足日常使用周期;
  3. 品牌保障:每批次附检测报告,支持样品测试,批量可定制包装,售后响应及时。

这款开关凭借小体积、高可靠性及SMT适配性,成为小型电子设备轻触触发的优选方案,可有效降低产品体积与成本,提升集成度。

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