Infineon Technologies TD270N16KOFBPSA1

Overview

TD270N16KOFBPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching and rectification in industrial drive systems. It delivers 270 A average on-state current (ITAVM) at TC = 85 °C, 1600 V repetitive peak off-state voltage (VDRM/VRRM), and features pressure-contact silicon die construction with electrically insulated baseplate for thermal and electrical isolation. It is used in soft starters, static switches, and UPS rectifiers where robust commutation and crowbar protection are required.

For engineers reviewing the TD270N16KOFBPSA1 datasheet, TD270N16KOFBPSA1 pinout, TD270N16KOFBPSA1 application, or TD270N16KOFBPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.113 K/W), critical dv/dt rating (1000 V/µs), gate trigger current (≤200 mA), and surge current capability (9000 A @ 10 ms).

Technical Context

This dual-thyristor module operates in phase-controlled AC applications using gate-triggered conduction with latching behavior. Its design supports 180° conduction angle operation under DC and sinusoidal loads, with validated turn-off time (tq = 250 µs) under specified commutation conditions (vRM = 100 V, dvD/dt = 20 V/µs, -diT/dt = 10 A/µs).

Thermal performance is defined per arm (not per module), with RthJC = 0.113 K/W max and RthCH = 0.04 K/W max, enabling integration into forced-air or liquid-cooled heatsink systems. The AlN-based baseplate provides Class I basic insulation (3.6 kV RMS, 1 sec) and creepage distance of 17 mm.

Key Specifications

Pinout & Package

TD270N16KOFBPSA1 is housed in an industrial-standard press-pack module with electrically insulated AlN baseplate and 50 mm × 50 mm footprint. Mechanical mounting uses M1 screws (5 Nm torque); electrical terminals use M2 screws (12 Nm torque). Control terminals conform to DIN 46244 A (2.8 × 0.8 mm).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT270N16KOF and TD330N16KOF, TD270N16KOFBPSA1 uniquely combines certified baseplate isolation (3.6 kV), standardized 50 mm footprint, and verified 250 µs commutated turn-off-making it optimal for safety-compliant soft starters and UPS rectifiers where space, isolation, and timing predictability are jointly constrained.

Availability

TD270N16KOFBPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, crowbar protection circuits, and static switches requiring stable component supply, long-lifecycle support, and certified electrical isolation.

Supply support for TD270N16KOFBPSA1 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 electronics, automotive ICs, and security solutions, with global manufacturing and R&D centers.

This part belongs to Infineon's "Netz-Thyristor-Modul" product line, engineered specifically for medium-to-high power AC phase control, rectification, and protection in industrial drives, energy infrastructure, and uninterruptible power systems.

FAQ

What is the maximum junction temperature and how does it affect derating?

The maximum junction temperature (Tvj max) is 125 °C. Derating follows the ITAVM vs. TC curve: at TC = 125 °C, ITAVM drops to 0 A; at TC = 85 °C, it is rated 270 A. Thermal design must ensure RthJC + RthCH + RthHA keeps Tvj ≤ 125 °C under worst-case conduction angle and ambient conditions.

Does TD270N16KOFBPSA1 require snubber circuits?

Snubbers are recommended when operating at high dv/dt conditions (>500 V/µs) or with inductive loads. The device's (dvD/dt)cr is 1000 V/µs, but real-world stray inductance may cause overshoot exceeding this value-especially in B6 bridge configurations-necessitating RC snubbers across each arm.

How is gate drive isolation implemented for this module?

Each gate (G1/G2) floats relative to its respective cathode (K1/K2), requiring individual isolated gate drivers referenced to their local cathode potential. Standard optocoupled or transformer-isolated drivers with ≥2.5 kV isolation and ≥2 A peak output are recommended to meet IGT ≤ 200 mA and tgd ≤ 3 µs requirements.

Can TD270N16KOFBPSA1 be used in parallel configurations?

Parallel operation is not recommended without active current-sharing control. The module lacks integrated current-balancing features, and parameter spread (e.g., V(TO), rT) between units can cause unequal sharing. For >270 A systems, use higher-rated variants like TD330N16KOF instead of paralleling.