Infineon Technologies TT92N12KOFB4HPSA1

Overview

TT92N12KOFB4HPSA1 from Semikron is a phase-control thyristor module configured as a single-phase, reverse-blocking, press-pack device with 1200 V repetitive peak off-state voltage (VDRM/VRRM), 92 A average on-state current (ITAVM) at TC = 85°C, and 160 A RMS on-state current (ITRMSM). It delivers 1.62 V maximum on-state voltage at 300 A and 130 °C junction temperature, and is engineered for high-reliability AC power control in industrial heating, motor speed regulation, and static switching applications.

For engineers reviewing the TT92N12KOFB4HPSA1 datasheet, TT92N12KOFB4HPSA1 pinout, TT92N12KOFB4HPSA1 application, or TT92N12KOFB4HPSA1 equivalent, key selection criteria include its 1000 V/µs critical dv/dt rating, 150 A/µs critical di/dt capability, gate trigger current ≤120 mA, thermal resistance RthJC ≤0.185 °C/W per module, and isolation test voltage of 2.5 kV RMS.

Technical Context

This thyristor module operates in natural- or forced-cooled configurations using pressure-contact silicon pellets mounted on aluminum nitride (AlN) ceramic insulation. Its design supports line-commutated turn-off (tq typ. 150 µs) under specified conditions: vRM = 100 V, vDM = 0.67 VDRM, dvD/dt = 20 V/µs, and -diT/dt = 10 A/µs - enabling reliable operation in B2 and B6 bridge topologies.

The module integrates dual-arm structure with independent gate terminals for each thyristor, supporting asymmetric triggering and precise phase-angle control. Its 160 g mass, 12.5 mm creepage distance, and M1/M2 mechanical/electrical mounting torques (4 Nm ±15% / 4 Nm ±10%) ensure robust mechanical integration into industrial power assemblies.

Key Specifications

Pinout & Package

TT92N12KOFB4HPSA1 is housed in a press-pack module with isolated baseplate and two main power terminals (Anode A1, Cathode K1) plus two gate control terminals (G1, K1 for first thyristor; G2, K2 for second). The package uses Si-pellets with AlN internal insulation and M1/M2 threaded terminals per DIN 46244 A standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar phase-control thyristor module applications.

Compared with SKKT 92/12, TT92N12KOFB4HPSA1 offers superior surge robustness and pressure-contact longevity; versus TT105N12KOF, it trades 13 A of average current for tighter cost and qualification scope in established 92 A designs.

Availability

TT92N12KOFB4HPSA1 is available at Aetrix Electronics and suitable for industrial heating control, AC motor speed regulation, static AC power switching, and welding power supply control requiring stable component supply and long-lifecycle support.

Supply support for TT92N12KOFB4HPSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Semikron is a German manufacturer specializing in power semiconductor modules, offering integrated solutions for energy conversion, industrial automation, and renewable energy systems since 1951.

This part belongs to the TT92N series of phase-control thyristor modules designed specifically for high-power, line-commutated AC power regulation in harsh industrial environments where reliability, thermal stability, and surge immunity are critical.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is 130 °C, matching the maximum junction temperature (Tvj max) due to the module's direct-mount thermal path. At ITAVM = 92 A and Θ = 180°, TC reaches 130 °C under natural cooling with RthCA = 0.30 °C/W, as shown in Figure 7 of the datasheet. Exceeding this value risks irreversible degradation of the AlN insulation and silicon die.

Does TT92N12KOFB4HPSA1 require a heatsink? If so, what thermal resistance is recommended?

Yes - a heatsink is mandatory. For natural cooling at ITAVM = 92 A, RthCA must be ≤0.30 °C/W (Figure 7, sinusoidal, Θ = 180°). With forced cooling (e.g., Papst 4650N fan), RthCA ≤0.583 °C/W suffices. The module's RthJC = 0.185 °C/W and RthCH = 0.05 °C/W (case-to-heatsink) define the total thermal path: RthJA = RthJC + RthCH + RthCA.

Can TT92N12KOFB4HPSA1 be used in a three-phase B6 bridge configuration?

Yes - it is qualified for B6 six-pulse bridge operation. Figure 8 shows ID(B6) up to 200 A at TA = 25 °C with RthCA = 0.30 °C/W. Each module handles one upper/lower pair; three modules are required for full B6. Gate drive must be isolated and synchronized to avoid shoot-through, respecting tq = 150 µs turn-off delay.

What gate drive requirements must be met to ensure reliable turn-on?

Gate trigger current must exceed 120 mA (IGT max) with di/dt ≥0.6 A/µs and pulse width ≥20 µs (IL test condition). A minimum 0.6 A pulse ensures latching; VGT ≤1.4 V at 6 V anode-cathode voltage. Gate-cathode wiring must be low-inductance (<50 nH) to preserve di/dt, and negative gate bias (≤–0.2 V) suppresses false triggering during dv/dt stress.