The BT137 600V 8A TRIAC Thyristor - TO-220 Package is a durable through-hole device designed for reliable AC switching and control. With high surge capacity, robust commutation, and efficient thermal performance, it’s ideal for motor control, dimming, heater regulation, and general AC load management circuits.

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Features:

1. High surge current capability for stable switching performance
   
2. Excellent commutation in three quadrants
   
3. Reliable thermal design in a compact TO-220 package
   
4. Low gate trigger current for simplified control circuits
   
5. Ideal for dimmers, relays, and inductive load control applications

Specifications:

• Repetitive Peak Off-State Voltage (VDRM): 600V
  
• Repetitive Peak Reverse Voltage (VRRM): 600V
  
• RMS On-State Current (IT(RMS)): 6A
  
• Non-Repetitive Surge Peak Current (ITSM): 65A (50Hz), 72A (60Hz)
  
• Gate Trigger Current (IGT): 10mA (max, Quadrants I–III)
  
• Gate Trigger Voltage (VGT): 1.3V (max)
  
• Holding Current (IH): 15mA (max)
  
• Latching Current (IL): 20mA (max)
  
• On-State Voltage (VTM) at 6A: 1.55V 
  
• Critical Rate of Rise of On-State Current (di/dt): 50A/μs
  
• Operating Junction Temperature (TJ): -40°C to +125°C
  
• Storage Temperature (TSTG): -40°C to +150°C

Package Includes:

1 × BT137 800V 6A TRIAC Thyristor - TO-220 Package