Infineon Technologies TD310N22KOFHPSA1

Overview

TD310N22KOFHPSA1 from Infineon Technologies is a phase-control thyristor module with dual 310 A average on-state current per arm, 2200 V repetitive peak off-state voltage (VDRM/VRRM), and 125 °C maximum junction temperature. It uses silicon pressure-contact construction with AlN internal isolation and is designed for industrial AC power control in high-power rectification and motor speed regulation systems.

For engineers reviewing the TD310N22KOFHPSA1 datasheet, TD310N22KOFHPSA1 pinout, TD310N22KOFHPSA1 application, or TD310N22KOFHPSA1 equivalent, key selection criteria include RMS on-state current rating (700 A), critical dv/dt (500 V/µs), gate trigger current (≤250 mA), thermal resistance (0.039 °C/W junction-to-case per module), and forced-air cooling compatibility.

Technical Context

This dual-arm thyristor module operates in B2 (two-pulse) and B6 (six-pulse) bridge configurations, supporting line-commutated turn-off with typical tq = 300 µs at 125 °C. Its gate-controlled delay time (tgd ≤ 3.3 µs) and latching current (IL ≤ 1500 mA) enable precise phase-angle firing in 50/60 Hz AC systems.

The device features a slope resistance of 0.86 mΩ and threshold voltage of 1 V at maximum junction temperature, delivering low conduction losses under full-load sinusoidal current (ITAVM = 310 A per arm at TC = 85 °C). Its 3.0 kV RMS insulation test voltage ensures safety in high-voltage industrial mains interfaces.

Key Specifications

Pinout & Package

TD310N22KOFHPSA1 is housed in a press-pack module package with isolated copper baseplate and two independent thyristor arms. Electrical terminals are M12 screw connections (torque 12 Nm ±10%) for main anode/cathode paths and DIN 46244 A 2.8×0.8 mm flat terminals for gate control inputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT310N22KOFHPSA1, TD310N22KOFHPSA1 reduces interconnect losses and thermal mismatch in B6 bridges via integrated dual-arm packaging, while TD330N22KOFHPSA1 trades higher gate drive demand for extended current headroom-both require revalidation of snubber networks and heatsink mounting torque.

Availability

TD310N22KOFHPSA1 is available at Aetrix Electronics and suitable for industrial AC motor drives, DC power supply rectifiers, welding power sources, and static VAR compensators requiring stable component supply across multi-year production programs.

Supply support for TD310N22KOFHPSA1 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 industrial control devices, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

This part belongs to Infineon's BIPAC (Bipolar Power AC Control) thyristor module product line, engineered for high-reliability phase-angle control in heavy-duty industrial AC power conversion systems.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is 85 °C for full-rated ITAVM = 310 A per arm under natural cooling. At forced-air cooling with KM17 heatsink and Papst 4650N fan, TC may rise to 115 °C while maintaining 310 A rating, based on transient thermal impedance data showing RthCA = 0.0064 °C/W at t = 1 s.

Does TD310N22KOFHPSA1 require external snubber circuits?

Snubbers are not mandatory for B6 operation at 50/60 Hz with dv/dt < 500 V/µs, as confirmed by (dv/dt)cr = 500 V/µs at VDRM. However, snubbers are recommended for B2 configurations or systems with fast-rising line transients exceeding 200 V/µs to prevent spurious turn-on during commutation recovery.

How is gate drive isolation implemented between the two arms?

Gate terminals G1/K1 and G2/K2 are electrically isolated from each other and from the baseplate, with minimum isolation resistance >10⁹ Ω and 3.0 kV RMS test voltage. This allows independent firing angle control without cross-talk, verified by gate non-trigger current (IGD ≤ 10 mA) at 0.5·VDRM across both arms simultaneously.

What mechanical mounting torque values apply to main terminals?

Main power terminals use M12 screws with specified torque of 12 Nm ±10%, ensuring optimal contact pressure for 700 A RMS current without cold flow deformation of copper busbars. Gate terminals follow DIN 46244 A standard with 2.8×0.8 mm flat contacts tightened to 6 Nm ±15% for reliable low-energy signal transmission.