TT 92 N 16 KOF 1600V Thyristor Module Technical Specification
TT 92 N 16 KOF 1600V Thyristor Module Technical Specification
The TT 92 N 16 KOF is an industrial phase-control thyristor/thyristor module. It is engineered by Infineon Technologies for high-power switching and rectification duties. It utilizes pressure contact technology to maintain reliable electrical and thermal contact under cyclical load conditions.
This module provides a critical building block for heavy-duty power electronics, cataloged under our power semiconductors portfolio. It features a peak repetitive off-state voltage of 1600V and an average on-state current of 92A at a case temperature of 85°C.
Download Official Datasheet (PDF)


Technical Analysis and Thermal Performance
The module contains two series-connected thyristors in a standard industrial housing. The 1600V repetitive peak reverse voltage rating provides a safety margin for 400V and 480V AC mains applications. This margin shields the device against voltage spikes and line transients common in industrial environments.
The thermal resistance junction-to-case ($R_{thJC}$) is rated at 0.28°C/W per thyristor. You can imagine thermal resistance as a narrow thermal corridor. A lower thermal resistance means heat flows out of the silicon chip faster. This path prevents local hot spots and thermal runaway during peak loads.


The pressure contact structure improves on-state characteristics and reliability. By eliminating solder joints between the silicon wafer and the copper baseplate, the module resists thermal fatigue during power cycling. This mechanical construction ensures long-term parameter stability.
Industrial Application Suitability
The properties of the TT 92 N 16 KOF make it suitable for several applications. It is often employed in soft starters for three-phase induction motors. The 2250A surge current rating manages high inrush currents during startup. The device is also used in phase-controlled rectifiers and power controllers.
For high-capacity thermal control, this module works as an AC switch in electric heating systems. You can read more about phase control implementation in our guide on mastering thyristor control in electric furnaces. Additionally, it serves in battery charging systems and regulated power supplies.
Best Match: The TT 92 N 16 KOF is optimal for phase-controlled rectifiers requiring a 92A rating with a 1600V safety headroom.
Key Specifications Table
| Absolute Maximum Ratings | |
|---|---|
| Repetitive Peak Off-State & Reverse Voltage ($V_{DRM} / V_{RRM}$) | 1600 V |
| Maximum RMS On-State Current ($I_{TRMSM}$) | 150 A |
| Average On-State Current ($I_{TAVM}$) | 92 A (at $T_C = 85^circtext{C}$) |
| Surge On-State Current ($I_{TSM}$) | 2250 A (at $10text{ ms}$, $T_{vj} = 125^circtext{C}$) |
| Electrical Characteristics (per Thyristor) | |
| Maximum On-State Voltage Drop ($V_T$) | 1.45 V (at $I_T = 300text{ A}$, $T_{vj} = 25^circtext{C}$) |
| Gate Trigger Voltage ($V_{GT}$) | 1.5 V (at $T_{vj} = 25^circtext{C}$) |
| Gate Trigger Current ($I_{GT}$) | 150 mA (at $T_{vj} = 25^circtext{C}$) |
| Thermal & Mechanical Limits | |
| Thermal Resistance, Junction to Case ($R_{thJC}$) | 0.28 °C/W (per thyristor) |
| Maximum Junction Temperature ($T_{vj max}$) | 125 °C |
| Isolation Test Voltage ($V_{ISOL}$) | 3000 V AC (1 minute) |
Engineering FAQ
Q1: What is the difference between this module and the higher-power models?
The current rating of the TT 92 N 16 KOF is 92A. Applications requiring more current can utilize the TT250N16KOF module, which features a higher average on-state current capacity in a larger package size.
Q2: Can this thyristor module handle 480V AC line applications?
Yes. The 1600V reverse voltage rating ($V_{RRM}$) provides a voltage headroom factor of over three times the nominal peak line voltage of a 480V system. This protects the module against line transient disturbances.
Q3: How does the thermal interface configuration affect mounting?
The module requires a flat thermal heatsink interface. Use a thin layer of thermal grease to minimize case-to-heatsink contact resistance ($R_{thCH}$). Correct torque limits must be applied to the mounting screws to avoid mechanical stress on the ceramic substrate.
Q4: How does the isolation voltage rating compare with other modules?
The internal isolation voltage is 3000V AC. For systems requiring higher isolation levels, components like the Infineon TT215n22kof offer different rating configurations.
Module Configuration Overview
The TT 92 N 16 KOF module balances surge current capability and thermal resistance in a compact package. The combination of a 1600V rating and pressure contact design supports stable performance in phase-controlled systems. It serves as a reliable component for diverse power converter designs.