Infineon Technologies TTB6C95N12LOF_B1

Overview

TTB6C95N12LOF_B1 from Infineon Technologies is a phase-control thyristor module in ISOPACK housing, rated for 1600 V repetitive peak off-state voltage (VDRM/VRRM), 95 A output current at TC = 85°C, and 720 A non-repetitive surge current (10 ms). It integrates two glass-passivated silicon chips with Al₂O₃ internal insulation and is designed for industrial AC power control in medium-power motor drives and heating systems.

For engineers reviewing the TTB6C95N12LOF_B1 datasheet, TTB6C95N12LOF_B1 pinout, TTB6C95N12LOF_B1 application, or TTB6C95N12LOF_B1 equivalent, key selection criteria include junction-to-case thermal resistance (0.137 °C/W), critical di/dt (120 A/µs), gate trigger current (≤150 mA), and isolation test voltage (3.0 kV RMS).

Technical Context

This dual-thyristor module operates in phase-angle controlled rectification, supporting line-commutated turn-off with tq ≤ 190 µs under specified conditions (vRM = 100 V, dVD/dt = 20 V/µs). Its glass-passivated Si pellets and Al₂O₃ isolation enable robust operation up to 125 °C junction temperature.

The module features symmetric blocking capability (VDRM = VRRM = 1600 V), low on-state voltage (vT ≤ 1.64 V at 100 A, Tvj max), and tightly specified gate parameters: VGT ≤ 2.5 V, IGT ≤ 150 mA, and IGD ≤ 5.0 mA - ensuring reliable triggering and noise immunity in noisy industrial environments.

Key Specifications

Pinout & Package

TTB6C95N12LOF_B1 uses an ISOPACK package - a press-fit, isolated, dual-thyristor module with soldered chip contacts and ceramic (Al₂O₃) internal insulation. Mechanical mounting uses M1 screws (6 Nm ±15%), and electrical terminals use M2 screws (6 Nm +5%/−10%). Weight: 300 g. Creepage distance: 12.5 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TTB6C95N12LOF_B1, the TTB6C95N16LOF_B1 offers identical functionality and interchangeability, while the TTB6C130N16LOF_B1 provides higher current capacity at the cost of increased thermal mass and footprint - making it suitable only when sustained >95 A output or >720 A surge is required.

Availability

TTB6C95N12LOF_B1 is available at Aetrix Electronics and suitable for industrial motor speed control, resistive heating regulation, static VAR compensation, and welding power supply applications requiring stable component supply and long-lifecycle support.

Supply support for TTB6C95N12LOF_B1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and energy markets.

This part belongs to Infineon's ISOPACK thyristor module product line, engineered for high-reliability AC power control in harsh industrial environments with emphasis on thermal robustness, galvanic isolation, and EMI resilience.

FAQ

What is the maximum allowable junction temperature for TTB6C95N12LOF_B1?

The maximum junction temperature (Tvj max) is 125 °C, as specified in the thermal characteristics section. Operation beyond this limit risks irreversible degradation of the silicon die and internal bonding. Thermal design must ensure that junction temperature remains below 125 °C under worst-case load, ambient, and cooling conditions - verified using RthJC = 0.137 °C/W and measured case temperature.

Can TTB6C95N12LOF_B1 be used in a single-phase full-wave rectifier configuration?

Yes - its dual-thyristor structure with isolated gates (G1/G2) and common cathodes (K1/K2) supports standard single-phase full-wave controlled rectifier topologies. Each thyristor handles one AC half-cycle; gate timing must be offset by 180°. The 1600 V VDRM rating supports input voltages up to 1150 V peak, covering 690 VAC line-to-line systems.

What heatsink types are recommended for this module?

Infineon specifies compatibility with KM 11, KM 14, KM 17, and KM 33 heatsinks. For 95 A continuous operation at TC = 85°C, KM 33 (with 90 L/min forced air) achieves 115 A rating, confirming sufficient thermal margin. Mounting torque must be 6 Nm ±15% on M1 screws, and thermal interface material with ≤0.1 °C·in²/W resistance is recommended to maintain RthCK ≤ 0.033 °C/W.

Does this module require external snubbers in typical phase-control applications?

Snubbers are recommended due to its (dv/dt)cr rating of 1000 V/µs - insufficient for unfiltered industrial mains with fast transients. A standard RC snubber (e.g., 100 Ω + 0.1 µF per thyristor) limits dv/dt across A-K terminals during turn-off, preventing false commutation. Gate snubbers (e.g., 10 Ω + 0.01 µF) further suppress ringing induced by high di/dt gate pulses.