Semikron – SKKT 132/12E – Thyristor SCR Power Module – 1200V 137A – Reclaimed Part

Semikron — SKKT 132/12E Thyristor SCR Power Module 1200 V • 137 A I_T(AV) • Series-Connected Dual SCRs • Isolated Baseplate • SEMIPACK 2

What it is

The Semikron SKKT 132/12E is an industrial-grade 1200 V, 137 A dual thyristor/SCR power module housed in the proven SEMIPACK 2 package. Its series-connected SCR configuration is designed for controlled rectification and phase-control applications requiring high current capability, reliable triggering and robust thermal performance.

The module features a ceramic-isolated metal baseplate for efficient heat transfer and straightforward heatsink mounting. Typical applications include industrial motor controls, soft starters, heater and temperature controls, professional lighting dimmers, rectifier systems and other high-power phase-control equipment.

At-a-Glance

• Voltage Rating: 1200 V V_DRM / V_RRM
• Average On-State Current: 137 A I_T(AV) @ T_case = 85°C
• RMS On-State Current: 220 A I_TRMS
• Surge Current: 4000 A I_TSM nominal published rating
• I²t Rating: 80 kA²s
• dv/dt Class: 1000 V/µs
• Topology: Series-connected dual thyristor / SCR configuration
• Package: SEMIPACK 2 • 94 × 34 × 30 mm
• Applications: Motor controls; soft starters; heater controls; lighting controls; rectifiers; industrial power control

Features

• 1200 V blocking capability — designed for demanding industrial rectifier and phase-control circuits.
• High surge capability — high non-repetitive surge-current capability for short-duration overload conditions.
• High I²t capability — 80 kA²s rating provides substantial transient-current withstand capability.
• High dv/dt capability — E-class device rated at 1000 V/µs.
• Low conduction losses — approximately 1.00 V threshold voltage with 1.6 mΩ on-state slope resistance.
• Industrial thermal performance — 0.19°C/W junction-to-case thermal resistance.
• Ceramic-isolated baseplate — provides efficient heat transfer while electrically isolating the power circuit from the heatsink.
• Hard-soldered construction — designed for high reliability and repeated electrical and thermal cycling.

Technical Specifications

Applications / Replacement Considerations