Fotek SSR-25DD DC 3-32V Input to DC 5-200V Solid State Relay

The Fotek SSR-25DD is a high-performance DC-to-DC solid state relay designed for fast, silent, and reliable switching of DC loads. Using semiconductor switching technology instead of mechanical contacts, it offers long operational life, high switching speed, and excellent electrical isolation, making it ideal for industrial automation, control systems, and power electronics applications.

Technical Specifications:

• Input control voltage: 3–32 V DC
  
• Output load voltage: 5–200 V DC
  
• Load current: up to 25 A
  
• Control type: DC to DC
  
• Switching type: Solid state (MOSFET)
  
• Isolation method: Optical isolation
  
• Response time: <10 ms
  
• Leakage current (off state): ≤2 mA
  
• Dielectric strength: ≥2500 VAC
  
• Operating temperature: −30 °C to +80 °C
  
• Mounting type: Panel mount
  
• Cooling method: External heat sink recommended
  
• Housing material: Flame-retardant plastic

Features:

• No mechanical contacts for silent operation
  
• High switching speed and long service life
  
• Strong electrical isolation between control and load
  
• Low control current requirement
  
• High load current handling capability
  
• Excellent resistance to vibration and shock
  
• Compact and rugged industrial-grade design

Applications:

• DC motor control systems
  
• Battery-powered equipment
  
• Industrial automation panels
  
• PLC output switching
  
• Robotics and CNC machines
  
• Power supply switching
  
• Heating elements and DC loads
  
• Solar and renewable energy systems