產品名稱:MKA14103型表面貼裝式干簧開關
Product Name: MKA14103 Surface Mount Reed Switch
產品概述
MKA14103是一款采用表面貼裝技術(SMT)的微型干簧管磁性開關,專為現代電子設備的緊湊型設計需求開發。本產品通過磁場感應實現電路通斷控制,其密閉式玻璃封裝結構能有效隔絕外部環境干擾,具有穩定的電氣性能和持久的使用壽命。適用于各類需要非接觸式開關控制的智能化設備,為電子系統提供可靠的磁控解決方案。
Core Features
采用高靈敏度雙簧片結構,磁場觸發響應快速,典型吸合磁場強度范圍為25-60AT。緊湊型SMD封裝尺寸(4.5x3.2x1.8mm)有效節省PCB空間,適合高密度電路板布局。產品在-40℃至+85℃寬溫域范圍內保持穩定工作狀態,可承受10^6次以上的可靠開關動作。特殊鍍層工藝確保接觸電阻低于200mΩ,支持最大切換功率10W,滿足低功耗設備的精準控制需求。
應用領域
• 智能家居:門窗感應器、安防報警裝置
• 便攜設備:翻蓋喚醒功能、折疊屏狀態檢測
• 工業控制:位置傳感器、行程限位開關
• 醫療設備:醫療器械安全開關
• 汽車電子:座椅位置檢測、儲物箱狀態感應
Applications
• Smart Home: Door/window sensors, security alarms
• Portable Devices: Flip喚醒功能, folding screen detection
• Industrial Control: Position sensing, limit switches
• Medical Equipment: Safety interlocks
• Automotive: Seat position detection, compartment monitoring
技術參數
Technical Specifications
觸點形式:常開型(Form A)
Contact Type: Normally Open (SPST)
額定電流:0.5A@24VDC
Rated Current: 0.5A@24VDC
絕緣電阻:>10^10Ω
Insulation Resistance: >10GΩ
動作時間:<1ms
Operate Time: <1 millisecond
釋放時間:<0.5ms
Release Time: <0.5ms
使用建議
建議在相對濕度≤85%且無腐蝕性氣體的環境中使用,安裝時避免機械應力直接作用于玻璃封裝體。推薦使用自動貼裝設備進行批量生產,回流焊峰值溫度建議控制在260℃以內。磁場作用方向應與產品標識方向保持一致以獲得最佳靈敏度,長期存放建議保持原包裝防潮密封狀態。
Usage Guidance
Optimal performance is achieved when operating in environments with ≤85% humidity and free from corrosive gases. Mechanical stress on glass envelope should be avoided during installation. Wave soldering with peak temperature below 260℃ is recommended. Maintain consistent magnetic field orientation with product marking for optimal sensitivity. Original moisture-proof packaging is advised for long-term storage.
產品優勢
Product Advantages
• 無功耗待機:純物理接觸無需維持電流
Zero Power Standby: Physical contact requires no holding current
• 環境適應性強:IP67等效密封防護等級
Environmental Resistance: Equivalent IP67 sealing
• 無火花設計:適用于易燃易爆環境
Spark-Free: Suitable for hazardous environments
• 抗干擾能力:不受灰塵、油污等非導磁物質影響
Noise Immunity: Unaffected by non-magnetic contaminants
注意事項
安裝時建議預留0.5mm以上緩沖間距,避免溫度變化引起的應力累積。不建議在強電磁干擾源附近使用,連續切換頻率建議不超過10Hz。磁鐵選擇時需注意保持適當作用距離,過強的磁場可能導致磁滯效應。
Precautions
Maintain 0.5mm buffer space for thermal expansion. Avoid installation near strong EMI sources. Continuous switching frequency should not exceed 10Hz. Select magnets with appropriate strength to prevent hysteresis effects from excessive magnetic fields.
通過創新的封裝設計和成熟的簧片處理工藝,MKA14103在保持傳統干簧管可靠性的同時,顯著提升了現代化生產的適配性。其非接觸式工作原理為設備提供免維護的開關解決方案,特別適合需要長期穩定運行的電子控制系統。
With innovative packaging and reed processing technology, MKA14103 maintains traditional reed switch reliability while enhancing compatibility with modern manufacturing. The contactless operation principle provides maintenance-free switching solutions, particularly suitable for electronic control systems requiring long-term stable operation.