TYN1225 SCR Thyristor 1200V 25A TO-220

TYN1225 SCR Thyristor 1200V 25A TO-220 is a high-performance Silicon Controlled Rectifier (SCR) designed for high-voltage, high-current applications. It features excellent surge capability and gate triggering characteristics, making it ideal for power control circuits, AC switching, and motor drive applications. The TO-220 package allows efficient heat dissipation and easy mounting.

Key Features:

• High Blocking Voltage: Withstands reverse and off-state voltages up to 1200V.
• High On-State Current: Capable of conducting 25A of continuous RMS current.
• Fast Switching: Suitable for phase control and high-frequency switching.
• Sensitive Gate Trigger: Easily triggered by low gate current.
• Robust Design: TO-220 package ensures mechanical strength and thermal performance.

Technical Specifications:

• Repetitive Peak Off-State Voltage (V_DRM): 1200V
• RMS On-State Current (I_T(RMS)): 25A
• Non-Repetitive Surge Current (I_TSM): 250A (10ms half-sine)
• Gate Trigger Current (I_GT): 50mA (max)
• Holding Current (I_H): 50mA
• On-State Voltage (V_T): 1.6V at 35A
• Operating Junction Temperature: -40°C to +125°C

Mechanical Specifications:

• Package Type: TO-220AB
• Lead Configuration: 3 pins (Gate, Anode, Cathode)
• Mounting: Through-hole with heatsink tab
• Case Material: Molded epoxy
• Weight: Approx. 2g

Pinout and Wiring:

• Pin 1: Gate (G)
• Pin 2: Anode (A)
• Tab and Pin 3: Cathode (K)
• Connection: Gate triggers conduction between anode and cathode.

Datasheet and Documentation:

• Download TYN1225 Datasheet (PDF)

Applications:

• AC Power Control: Used in dimmers, heaters, and light control circuits.
• Motor Control: Provides speed and torque control in AC/DC motors.
• Battery Chargers: Controls charging current in high-power chargers.
• Phase Control: Common in industrial automation and welding equipment.
• Soft Start Circuits: Protects equipment from high inrush current.

Equivalent Models:

• TYN825: Lower voltage version (800V, 25A)
• BT152-800: General-purpose SCR with similar specs
• 2N6509: 25A 400-800V SCR used in similar switching applications

Package Includes:

• 1 x TYN1225 SCR Thyristor 1200V 25A TO-220