TIC126D SCR Thyristor 400V 12A TO-220
The TIC126D SCR Thyristor 400V 12A TO-220 is a rugged silicon controlled rectifier in a TO-220 three-lead package intended for power control and switching applications, offering 400V repetitive blocking, 12A continuous on-state capability with high surge tolerance, low on-state voltage and defined thermal characteristics for reliable heatsink mounting and thermal management.
Features
- Repetitive off-state blocking voltage of 400V for robust voltage margin.
- Continuous on-state current rating up to 12A under specified case temperature limits.
- High non-repetitive surge capability (100A half-sine) for inrush and transient tolerance.
- Low on-state voltage for efficient conduction and reduced power loss.
- Moderate gate trigger current for straightforward gate drive implementation.
- High dv/dt immunity to minimise false triggering in inductive environments.
- Low junction-to-case thermal resistance for predictable heatsink design.
- Standard TO-220 through-hole package for easy PCB mounting and heatsinking.
Specifications
ABSOLUTE MAXIMUM RATINGS over operating case temperature
(unless otherwise noted)
| Rating | Symbol | Value | Unit |
|---|---|---|---|
| Repetitive peak off-state voltage | VDRM | 400 | V |
| Repetitive peak reverse voltage | VRRM | ||
| Continuous on-state current at (or below) 70°C case temperature (see Note 1) | IT(RMS) | 12 | A |
| Average on-state current (180° conduction angle) at (or below) 70°C case temperature (see Note 2) | IT(AV) | 7.5 | |
| Surge on-state current at (or below) 25°C case temperature (see Note 3) | ITM | 100 | |
| Peak positive gate current (pulse width ≤ 300 μs) | IGM | 3 | |
| Peak gate power dissipation (pulse width ≤ 300 μs) | PGM | 5 | W |
| Average gate power dissipation (see Note 4) | PG(AV) | 1 | |
| Operating case temperature range | TC | -40 to +110 | °C |
| Storage temperature range | Tstg | ||
| Lead temperature 1.6 mm from case for 10 seconds | TL | 230 |
NOTES:
- These values apply for continuous dc operation with resistive load. Above 70°C derate linearly to zero at 110°C.
- This value may be applied continuously under single phase 50 Hz half-sine-wave operation with resistive load. Above 70°C derate linearly to zero at 110°C.
- This value applies for one 50 Hz half-sine-wave when the device is operating at (or below) the rated value of peak reverse voltage and on-state current. Surge may be repeated after the device has returned to original thermal equilibrium.
- This value applies for a maximum averaging time of 20 ms.
Applications
- AC and DC power control including phase angle controllers and light dimmers.
- Motor control, soft-start and static switching in industrial drives.
- Inrush/surge handling and transient tolerant switching for power supplies.
- Switching elements in SMPS, battery chargers and inverter circuits.
- General purpose power switching and protection circuits requiring a TO-220 SCR.
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