EUPEC – TT142N-12-679170-02-8K9 – Thyristor Power Module – Reclaimed Part

EUPEC — TT142N-12 / 679170-02-8K9 Thyristor Power Module 1200 V • 142 A • Dual Phase-Control Thyristor Module • Isolated Baseplate

What it is

The EUPEC TT142N-12, additionally marked 679170-02-8K9, is a heavy-duty 1200 V, 142 A phase-control thyristor power module designed for industrial AC power control and controlled-rectifier applications. Unlike an IGBT module, the TT142N uses silicon-controlled rectifier (SCR) technology intended for high-current line-frequency and phase-control circuits.

With a maximum RMS on-state current of 230 A and non-repetitive surge capability reaching 4.8 kA under specified conditions, the TT142N-12 is well suited for demanding legacy power equipment including UPS input stages, controlled rectifiers, motor soft starters, AC regulators, industrial power supplies and other high-current power-control systems.

At-a-Glance

• Voltage Rating: 1200 V
• Average On-State Current: 142 A I_TAVM @ T_C = 85°C
• RMS On-State Current: 230 A I_TRMSM
• Surge Current: Up to 4.8 kA, 10 ms
• Device Type: Dual phase-control thyristor / SCR power module
• Mounting: Screw-terminal module with isolated baseplate
• Applications: UPS systems; controlled rectifiers; soft starters; AC power controllers; industrial power supplies
• Condition: Reclaimed part

Features

• High surge capability — I_TSM up to 4.8 kA under specified 10 ms conditions.
• High current handling — 142 A average and 230 A RMS on-state current ratings.
• 1200 V blocking capability — designed for industrial high-voltage power-control circuits.
• Rugged switching characteristics — rated for high dv/dt and di/dt operation in phase-control applications.
• Low on-state voltage — approximately 1.56 V maximum at 500 A under specified conditions.
• Isolated baseplate — simplifies heatsink mounting while maintaining electrical isolation.

Technical Specifications

Compatibility / Representative Uses